Patent application number | Description | Published |
20150265910 | USER-INITIATED FILLING OF GAME BOARD - A game board associated with a game and that includes one or more tiles and one or more hazards may be presented to a user. The user may select or match one or more tiles, which may cause a hazard in close proximity to the one or more tiles and the selected one or more tiles to be removed from the game board. During gameplay, the user may cause the game board to be filled, thereby causing additional tiles and/or hazards to be introduced onto the game board. Upon detecting a user selection to fill the game board, it may determined whether the user has one or more remaining fills. If so, the user may be authorized to fill the game board with one or more hazards and/or tiles. | 09-24-2015 |
20150265923 | Match-Based Hazard Removal and Game Board Filling - A game board associated with a game and that includes one or more tiles and one or more hazards may be presented to a user. The user may select or match one or more tiles, which may cause a hazard in close proximity to the one or more tiles and the selected one or more tiles to be removed from the game board. During gameplay, the user may cause the game board to be filled, thereby causing additional tiles and/or hazards to be introduced onto the game board. By matching tiles and causing hazards to be removed from the game board, the user may achieve an objective included on the game board and/or complete the game board. | 09-24-2015 |
20150265924 | MATCH-BASED REMOVAL OF GAME BOARD HAZARDS - A game board associated with a game and that includes one or more tiles and one or more hazards may be presented to a user. The user may select or match one or more tiles, which may cause a hazard in close proximity to the one or more tiles and the selected one or more tiles to be removed from the game board. During gameplay, the user may cause the game board to be filled, thereby causing additional tiles and/or hazards to be introduced onto the game board. The game board may include different types of hazards, in which a particular type of hazard may be removed from the game board by the user selecting particular types of tiles. | 09-24-2015 |
Patent application number | Description | Published |
20120102400 | Touch Gesture Notification Dismissal Techniques - In an exemplary embodiment, touch input received by a computing device can be used to dismiss notifications. For example, a notification, e.g., a window including information about an event, can be displayed by a touch-screen. A user can touch touch-screen and dismiss the notification by performing a gesture. In addition to the foregoing, other aspects are described in the detailed description, claims, and figures. | 04-26-2012 |
20120102437 | Notification Group Touch Gesture Dismissal Techniques - In exemplary embodiments, multiple notifications can be displayed by a touch-screen of a computing device and dismissed as a group. For example, touch input sensed by the touch-screen can be used to select multiple notifications. The multiple notifications can then be dismissed using a dismissal gesture. In addition to the foregoing, other aspects are described in the detailed description, claims, and figures. | 04-26-2012 |
20120304103 | Display of Immersive and Desktop Shells - Desktop as an immersive application techniques are described. In one or more implementations, an immersive environment module is configured to provide an immersive shell through which a user may interact with applications of a computing device. The immersive environment module is further configured to provide a desktop shell within the immersive shell to support additional techniques for interaction with the application of the computing device. The desktop shell, for instance, may be configured for accessibility similar to that provided to applications in the immersive shell. | 11-29-2012 |
20130067421 | Secondary Actions on a Notification - Various embodiments enable notifications to be generated in both touch and non-touch environments. In at least some embodiments, a notification window is presented and a drag operation can reveal one or more secondary actions that can be performed. In at least some embodiments, selection of one or more of the secondary actions can occur independent of, and without utilizing additional special affordances, such as buttons. | 03-14-2013 |
20140304645 | Secondary Actions on a Notification - Various embodiments enable notifications to be generated in both touch and non-touch environments. In at least some embodiments, a notification window is presented and a drag operation can reveal one or more secondary actions that can be performed. In at least some embodiments, selection of one or more of the secondary actions can occur independent of, and without utilizing additional special affordances, such as buttons. | 10-09-2014 |
Patent application number | Description | Published |
20140050803 | COMPOSITIONS AND METHODS FOR TREATMENT OF MELANOMA - Described herein are compositions and methods for the prognosis, prevention and treatment of melanoma or melanoma associated symptoms. The compositions are microRNA molecules associated with melanoma or with melanoma brain tropism, as well as various nucleic acid molecules relating thereto or derived therefrom. | 02-20-2014 |
20150125466 | METHODS RELATED TO CANCER TREATMENT - The present invention relates to method for predicting a subject's relative response to cancer immunotherapy treatment. The methods involve providing a sample comprising a tumor cell or a peripheral blood cell from the subject; measuring the expression level of matrix metalloproteinase-23 (“MMP-23”) by the tumor cell or the peripheral blood cell; comprising the measured expression level of MMP-23 with a control or standard value; and determining the subject's predicted response to cancer immunotherapy, where, based on said comparing, a higher MMP-23 expression level compared to the control or standard value predicts the subject will have a poor response to cancer immunotherapy. The present invention also relates to methods for increasing production of tumor infiltrating leucocytes (“TILs”) in a subject, methods of identifying a subject as a candidate for adoptive T-cell therapy using T-cells that primarily express KCa3.1 channels, and methods of treating a subject having melanoma by administering an MMP-23 inhibitor. | 05-07-2015 |
20150126621 | METHOD FOR PREDICTING RECURRENCE OF MELANOMA USING miRNA ALTERATIONS - Described herein are miRNA-based methods for prognosis of recurrence of melanoma and related methods and kits. The present invention addresses these and other needs by providing a method for predicting the likelihood of recurrence of melanoma (including distal metastasis and locoregional recurrence) in a subject diagnosed with melanoma. In a separate aspect, the invention provides a method for treatment of a melanoma recurrence (including distal metastasis and locoregional recurrence) in a subject in need thereof. | 05-07-2015 |
20150344961 | Sera Based miRNAs as Non-Invasive Biomarkers in Melanoma - The present invention relates to serum marker microRNAs (miRNAs) which are associated with cancer, particularly melanoma, and to the assessment thereof in the prognosis, treatment and management of cancer. Embodiments include methods, compositions, kits and isolated nucleic acids. The present invention is directed to methods and compositions for prognosing melanoma and monitoring for recurrence by monitoring serum miRNAs, and the use of miRNAs and antagonists thereof, particularly antagomirs, for predicting and assessing risk and/or likelihood of recurrence in a melanoma patient. The present invention relates to biomarkers for melanoma, particularly serum markers and sets thereof which are relevant and significant as prognostic indicators of melanoma disease and patient risk for recurrence. | 12-03-2015 |
Patent application number | Description | Published |
20080315877 | Imaging Tissue Deformation Using Strain Encoded Mri - Disclosed is a system and method for imaging strain of tissue, such as the heart, in a quantitative manner. The present invention provides images of strain, which corresponds to heart function, by tagging a tissue region of interest, and acquiring multiple images by tuning an MRI RF receiver to frequencies above and below the tagging frequency. Depending on the tagging spatial frequency, and the spread between the high- and low-tuning frequencies, linear measurements of strain may be made on a pixel by pixel basis. By selectively tagging the tissue of interest by use of selective excitation, images may be acquired sufficiently fast to provide anatomical and functional imagery within a single heartbeat. By acquiring additional images, dead tissue may be differentiated from contracting tissue as well as blood. | 12-25-2008 |
20100222667 | COMPRESSION DEVICE FOR ENHANCING NORMAL/ABNORMAL TISSUE CONTRAST IN MRI INCLUDING DEVICES AND METHODS RELATED THERETO - Featured are a device for compression of target tissue while magnetic resonance imaging the target tissue and methods and systems related thereto. The method includes disposing target tissue between the fixed surface and the moveable member of a compression device and compressing the target tissue between the fixed surface and the moveable member. The method also includes acquiring one or more, more specifically a plurality, of sequences of image data of the compressed target tissue using an MRI imaging technique (MRI). In embodiments, the MRI technique is a SENC MRI technique, where tissue encoding is done prior to compressing the tissue and acquiring includes adding a gradient moment in the slice-selection direction to cause demodulation with a specific frequency, hi further embodiments, the sequences of image data are acquired during a single compression and prior to recovery of magnetization. | 09-02-2010 |
20110270079 | COMPRESSION DEVICE FOR ENHANCING NORMAL/ABNORMAL TISSUE CONTRAST IN MRI INCLUDING DEVICES AND METHODS RELATED THERETO - Featured are devices for compression of target tissue while magnetic resonance imaging the target tissue and methods and systems related thereto. The method includes disposing target tissue between the fixed surface and the moveable member of a compression device and compressing the target tissue between the fixed surface and the moveable member. The method also includes acquiring one or more, more specifically a plurality, of sequences of image data of the compressed target tissue using an MRI imaging technique (MRI). In particular embodiments, the MRI technique is a SENC MRI technique, where tissue encoding is done prior to compressing the tissue and acquiring includes adding a gradient moment in the slice-selection direction to cause demodulation with a specific frequency. In further embodiments, the sequences of image data are acquired one of during successive periodic compressions of the tissue or successive periodic relaxation of the tissues. | 11-03-2011 |
Patent application number | Description | Published |
20080258672 | METHOD OF STARTING A SYNCHRONOUS MOTOR WITH A BRUSHLESS DC EXCITER - A starting method and system for a motor where the motor may be started as an induction motor by applying a magnetizing current to build flux through the stator, with the field current set at the maximum permissible exciter stator current (i.e., the current that will cause rated no-load current in the main field at the transition speed). The motor stator currents will be maintained at a value that allows the motor to generate sufficient breakaway torque to overcome any stiction. At a specific transition speed or after a period of time, the drive will initiate a transition from induction motor control to synchronous motor control by removing the initial magnetizing current, and a field current is then applied to the motor through the DC exciter. Once this transition is completed, the drive may ramp up to the desired speed demand. | 10-23-2008 |
20090058584 | THREE-PHASE MULTI-WINDING DEVICE - A three-phase, multi-winding includes a core, the core including a hub and an outer shell around a perimeter of the hub. wherein the hub and the outer shell are in a fixed position with respect to each other. The core also includes multiple slots. In addition to the core, the multi-winding device includes a primary winding positioned in at least two of the slots; and multiple spatially distributed secondary windings, wherein at least one of the secondary windings is positioned proximate the primary winding in at least one of the two slots. | 03-05-2009 |
20090212724 | Method for Braking an AC Motor - A system for braking a motor. The system includes at least one resistor and a contactor connected to the at least one resistor and a motor. The system further includes a variable frequency drive electrically connected to the motor, wherein the variable frequency drive comprises a controller operably connected to the contactor, wherein at least a portion of the contactor closes connecting the at least one resistor to the motor in response to a command from the controller. The variable frequency drive is configured such that motor flux levels may be maintained at a relatively high level as motor torque current is reduced, resulting in a consistently high motor flux level as the motor speed decreases. | 08-27-2009 |
20130334998 | SYSTEMS, APPARATUS, AND METHODS FOR SOFT STARTING LARGE AC MOTORS WITH A VARIABLE FREQUENCY DRIVE - A system for soft starting a large AC motor may include a variable frequency drive (VFD) having a much lower voltage rating than the rated voltage of the AC motor. The VFD's voltage rating may be in a range of about 33% to about 67% of the AC motor's rated voltage. The AC motor may be coupled to a utility power source via conventional connections to leads of the AC motor's windings. The VFD may be connected to the AC motor via tapped connections within the windings of the AC motor such that the tap voltages are much less than the AC motor's rated voltage. A less expensive VFD may therefore be used to soft start the AC motor instead of a VFD having the same rated voltage as the AC motor. Methods of starting large AC motors with a VFD are also provided, as are other aspects. | 12-19-2013 |
20140002215 | ELECTRICAL CONTACT APPARATUS, ASSEMBLIES, AND METHODS OF OPERATION | 01-02-2014 |
20140049880 | TEMPERATURE SENSING SYSTEM FOR POWER ELECTRONIC DEVICE - A power electronic device is disclosed. The power electronic device may include a housing, a conductive element positioned within the housing and rated for at least a medium voltage, a cooling system in fluid communication with the conductive element, a plurality of temperature sensing tags and a data collection unit having a receiver that is configured to receive signals from the antennae of the temperature sensing tags. The cooling system may have a plurality of outlet conduit elements that are positioned within the housing. Each of the tags may be attached to one of the outlet conduits and may include a power supply, a temperature sensor, and an antenna. | 02-20-2014 |
Patent application number | Description | Published |
20090076511 | Intervertebral Disc Reamer - An intervertebral disc reamer includes a flexible shaft having a shaft channel, and a reamer head attached to the flexible shaft and movable relative to the flexible shaft. The reamer head has a reamer channel. The shaft channel and the reamer channel are aligned to define a continuous guide wire channel for the disc reamer. The disc reamer addresses the quality of disc removal and endplate preparation, minimizes the trauma of surgery, minimizes blood loss, and markedly reduces surgical time. | 03-19-2009 |
20090082822 | Transpedicular, Extrapedicular and Transcorporeal Approaches to the Intervertebral Discs - A method of surgically accessing intervertebral disc space involves a less invasive technique than prior procedures. The method avoids violation of the disc annulus and utilizes the annulus for containment of artificial disc material. The less invasive technique results in less blood loss and minimization of surgical trauma. The method includes the steps of identifying a target disc space, preparing portals adjacent the disc space, introducing a guide wire into each of the portals, using the guide wires, removing a core of bone with a trephine along each of the portals, and accessing the intervertebral disc space for performing intradiscal procedures. | 03-26-2009 |
20090082870 | TRANSPEDICULAR, EXTRAPEDICULAR AND TRANSCORPOREAL PARTIAL DISC REPLACEMENT - A nucleus replacement mimics a native annulus in shape and function for use in partial disc arthroplasty. The nucleus replacement includes a jacket having a compartment, a first anchoring limb on one side of the compartment, and a second anchoring limb on an opposite side of the compartment. The jacket is insertable into a disc space through an operating channel in at least one of the vertebral pedicle and the vertebral body. A shock absorbing material is injectable into the compartment after installing the jacket into the disc space. The shock absorbing material has characteristics that absorb loads on the replacement. | 03-26-2009 |
20090093851 | Transfacet-Pedicle Locking Screw Fixation of Lumbar Motion Segment - A transfacet-pedicle locking screw fixation assembly includes a plurality of pedicle screws each including threads at a distal end and a connecting receptacle at a proximal end. The connecting receptacle is oriented perpendicularly with respect to a longitudinal axis of the pedicle screw. A basic transfacet locking screw including threads at least at a distal end has the distal end engaging the connecting receptacle in one of the pedicle screws. The transfacet locking screw may also be interlocked with another transfacet locking screw. | 04-09-2009 |
20090157181 | Biologic Artificial Bone - A biologic artificial bone includes an artificial fiber material formed from a synthetic polymer with mechanical properties similar to type I collagen. A biocompatible liquid substance is impregnated in the fiber material that hardens and stiffens the fiber material. A bone substitute is impregnated in the hardened and stiffened fiber material forming an artificial bone composite. Vascular channels are formed in the artificial bone composite to facilitate in-growth of vessels and bone forming cells. The construction and methods achieve an artificial composite structure that is similar to natural bone with comparable properties. | 06-18-2009 |
20090187249 | Biologic Vertebral Reconstruction - A device and method for biologic vertebral reconstruction utilizes a biologically active jacket inserted into a cavity formed in a vertebra to be reconstructed. An artificial bone material is inserted into the biologically active jacket and allowed to set. The structure and method described herein provide for effective biologic vertebral reconstruction. The use of a biological material and artificial bone enables the host bone to replace the artificial bone over a period of time. Additionally, the structure of the biologically active jacket minimizes any impact into the spinal canal and the paravertebral spaces. Moreover, because of its biomechanical characteristics, which approximate the host bone, there is relative protection of the neighboring vertebral against fracture. Still further, the materials of the biologically active jacket may be impregnated with various substances to achieve various advantageous tasks. | 07-23-2009 |
20110196369 | Biologic Intramedullary Fixation Device and Methods of Use - A biologic intramedullary fixation device for treating a bone fracture includes an internal tubular wall formed of a bioabsorbable synthetic material; and an outer wall coupled with and surrounding the internal tubular wall with an annular space therebetween. The outer wall is at least partially fenestrated and is formed of the bioabsorbable synthetic material. A biologically replaceable cement material is injectable into the annular space between the internal tubular wall and the outer wall. | 08-11-2011 |
20120316566 | Biologic Vertebral Reconstruction - A device and method for biologic vertebral reconstruction utilizes a biologically active jacket inserted into a cavity formed in a vertebra to be reconstructed. An artificial bone material is inserted into the biologically active jacket and allowed to set. The structure and method described herein provide for effective biologic vertebral reconstruction. The use of a biological material and artificial bone enables the host bone to replace the artificial bone over a period of time. Additionally, the structure of the biologically active jacket minimizes any impact into the spinal canal and the paravertebral spaces. Moreover, because of its biomechanical characteristics, which approximate the host bone, there is relative protection of the neighboring vertebral against fracture. Still further, the materials of the biologically active jacket may be impregnated with various substances to achieve various advantageous tasks. | 12-13-2012 |
Patent application number | Description | Published |
20100137909 | METHOD FOR POSTOPERATIVELY COMPRESSING A BONE GRAFT - A method for postoperatively compressing a bone graft between adjacent spinal vertebrae utilizing first and second plates having openings at remote ends for receiving bone screws to fix the plates to respective vertebrae on opposite sides of a bone graft-receiving site. The first and second plates have male and female parts having interlocking elements cooperable with one another enabling movement of the plates and the adjacent vertebrae to one another to progressively compress the bone graft between the adjacent vertebrae and prevent movement of the first and second plates and adjacent vertebrae away from one another. | 06-03-2010 |
20120203071 | Endoscopic Soft Tissue Working Space Creation - A device for creating endoscopic operating space includes an external cannula, an internal cannula disposed in the external cannula, and an expandable retractor disposed at a distal end of the device and cooperable with the external cannula and the internal cannula. The expandable retractor is displaceable between an unexpanded position and an expanded position. An actuator is cooperable with the expandable retractor to displace the expandable retractor between the unexpanded position and the expanded position. | 08-09-2012 |
20120203341 | Biologic Diarthrodial Joint - A biologic diarthrodial joint includes an artificial subchondral bone shaped in the form of a joint replacement member and formed of an artificial fiber material. The artificial fiber material includes synthetic fibers formed in a fibrous network with the synthetic fibers arranged in multiple orientations. The artificial subchondral bone includes a polymer receiving component. An artificial cartilage polymer is cooperable with the artificial subchondral bone and engages the polymer receiving component. The artificial cartilage polymer has physical properties similar to that of native articular cartilage. | 08-09-2012 |
20140131909 | BIOLOGIC ARTIFICIAL BONE - A biologic artificial bone includes an artificial fiber material formed from a synthetic polymer with mechanical properties similar to type I collagen. A biocompatible liquid substance is impregnated in the fiber material that hardens and stiffens the fiber material. A bone substitute is impregnated in the hardened and stiffened fiber material forming an artificial bone composite. Vascular channels are formed in the artificial bone composite to facilitate in-growth of vessels and bone forming cells. The construction and methods achieve an artificial composite structure that is similar to natural bone with comparable properties. | 05-15-2014 |
20150190239 | BIOLOGIC VERTEBRAL RECONSTRUCTION - A device and method for biologic vertebral reconstruction utilizes a biologically active jacket inserted into a cavity formed in a vertebra to be reconstructed. An artificial bone material is inserted into the biologically active jacket and allowed to set. The structure and method described herein provide for effective biologic vertebral reconstruction. The use of a biological material and artificial bone enables the host bone to replace the artificial bone over a period of time. Additionally, the structure of the biologically active jacket minimizes any impact into the spinal canal and the paravertebral spaces. Moreover, because of its biomechanical characteristics, which approximate the host bone, there is relative protection of the neighboring vertebra against fracture. Still further, the materials of the biologically active jacket may be impregnated with various substances to achieve various advantageous tasks. | 07-09-2015 |
Patent application number | Description | Published |
20140138314 | FLUORINATED ETHYLENE-PROPYLENE POLYMERIC MEMBRANES FOR GAS SEPARATIONS - A fluorinated ethylene-propylene polymeric membrane comprising a copolymer comprising 2,3,3,3-tetrafluoropropene and vinylidene fluoride is disclosed. The fluorinated ethylene-propylene polymeric membranes of the invention are especially useful in gas separation processes in air purification, petrochemical, refinery, and natural gas industries. | 05-22-2014 |
20140138317 | BLEND POLYMERIC MEMBRANES CONTAINING FLUORINATED ETHYLENE-PROPYLENE POLYMERS FOR GAS SEPARATIONS - The present invention generally relates to gas separation membranes and, in particular, to high selectivity fluorinated ethylene-propylene polymer-comprising polymeric blend membranes for gas separations. The polymeric blend membrane comprises a fluorinated ethylene-propylene polymer and a second polymer different from the fluorinated ethylene-propylene polymer. The fluorinated ethylene-propylene polymers in the current invention are copolymers comprising 10 to 99 mol % 2,3,3,3-tetrafluoropropene-based structural units and 1 to 90 mol % vinylidene fluoride-based structural units. The second polymer different from the fluorinated ethylene-propylene polymer is selected from a low cost, easily processable glassy polymer. | 05-22-2014 |
20140150646 | BLEND POLYMERIC MEMBRANES CONTAINING FLUORINATED ETHYLENE-PROPYLENE POLYMERS FOR GAS SEPARATIONS - The present invention generally relates to gas separation membranes and, in particular, to high selectivity fluorinated ethylene-propylene polymer-comprising polymeric blend membranes for gas separations. The polymeric blend membrane comprises a fluorinated ethylene-propylene polymer and a second polymer different from the fluorinated ethylene-propylene polymer. The fluorinated ethylene-propylene polymers in the current invention are copolymers comprising 10 to 99 mol % 2,3,3,3-tetrafluoropropene-based structural units and 1 to 90 mol % vinylidene fluoride-based structural units. The second polymer different from the fluorinated ethylene-propylene polymer is selected from a low cost, easily processable glassy polymer. | 06-05-2014 |
20140150648 | FLUORINATED ETHYLENE-PROPYLENE POLYMERIC MEMBRANES FOR GAS SEPARATIONS - A fluorinated ethylene-propylene polymeric membrane comprising a copolymer comprising 2,3,3,3-tetrafluoropropene and vinylidene fluoride is disclosed. The fluorinated ethylene-propylene polymeric membranes of the invention are especially useful in gas separation processes in air purification, petrochemical, refinery, and natural gas industries. | 06-05-2014 |
20140290478 | HIGH PERFORMANCE CROSS-LINKED POLYIMIDE ASYMMETRIC FLAT SHEET MEMBRANES - The present invention discloses high performance cross-linked polyimide asymmetric flat sheet membranes and a process of using such membranes. The cross-linked polyimide asymmetric flat sheet membranes have shown CO | 10-02-2014 |
20150090118 | SELF CROSS-LINKABLE AND SELF CROSS-LINKED AROMATIC POLYIMIDE MEMBRANES FOR SEPARATIONS - This invention relates to self-cross-linkable and self-cross-linked aromatic polyimide polymers, their membranes and methods for making and using these polymers and membranes. The self-cross-linkable aromatic polyimide polymer described in the present invention comprises both hydroxyl functional groups and carboxylic acid functional groups. The self-cross-linked aromatic polyimide was formed via heating the self-cross-linkable aromatic polyimide polymer at ≦300° C. The self-cross-linked aromatic polyimide membranes exhibit high selectivity in separation of mixtures of gases and liquids. | 04-02-2015 |
20150093510 | SELF CROSS-LINKABLE AND SELF CROSS-LINKED AROMATIC POLYIMIDE MEMBRANES FOR SEPARATIONS - This invention relates to self-cross-linkable and self-cross-linked aromatic polyimide polymers, their membranes and methods for making and using these polymers and membranes. The self-cross-linkable aromatic polyimide polymer described in the present invention comprises both hydroxyl functional groups and carboxylic acid functional groups. The self-cross-linked aromatic polyimide was formed via heating the self-cross-linkable aromatic polyimide polymer at ≦300° C. The self-cross-linked aromatic polyimide membranes exhibit high selectivity in separation of mixtures of gases and liquids. | 04-02-2015 |
20150094429 | POLYBENZOXAZOLE MEMBRANES FROM SELF-CROSS-LINKABLE AROMATIC POLYIMIDE MEMBRANES - A method of making a polybenzoxazole (PBO) membrane from a self-cross-linked aromatic polyimide polymer membrane is provided. These membranes are useful in the separation of gas mixtures and liquid mixtures. The PBO membrane is made by fabricating a self-cross-linkable aromatic polyimide polymer membrane comprising both hydroxyl functional groups and carboxylic acid functional groups; cross-linking the polymer to form a self-cross-linked aromatic polyimide polymer membrane by heating the membrane at 250° to 300° C. under an inert atmosphere; and thermal heating the self-cross-linked aromatic polyimide polymer membrane at a temperature from about 350° to 500° C. under an inert atmosphere to convert the self-cross-linked aromatic polyimide polymer membrane into a PBO membrane. A membrane coating step may be added by coating the selective layer surface of the PBO membrane with a thin layer of high permeability material. | 04-02-2015 |
20150094500 | POLYBENZOXAZOLE MEMBRANES FROM SELF-CROSS-LINKABLE AROMATIC POLYIMIDE MEMBRANES - A method of making a polybenzoxazole (PBO) membrane from a self-cross-linked aromatic polyimide polymer membrane is provided. These membranes are useful in the separation of gas mixtures and liquid mixtures. The PBO membrane is made by fabricating a self-cross-linkable aromatic polyimide polymer membrane comprising both hydroxyl functional groups and carboxylic acid functional groups; cross-linking the polymer to form a self-cross-linked aromatic polyimide polymer membrane by heating the membrane at 250° to 300° C. under an inert atmosphere; and thermal heating the self-cross-linked aromatic polyimide polymer membrane at a temperature from about 350° to 500° C. under an inert atmosphere to convert the self-cross-linked aromatic polyimide polymer membrane into a PBO membrane. A membrane coating step may be added by coating the selective layer surface of the PBO membrane with a thin layer of high permeability material. | 04-02-2015 |
20150267009 | HIGH HYDROCARBON RESISTANT CHEMICALLY CROSS-LINKED AROMATIC POLYIMIDE MEMBRANE FOR SEPARATIONS - This invention relates to high hydrocarbon resistant chemically cross-linked aromatic polyimide polymers, membranes and methods for making and using these polymers and membranes. The high hydrocarbon resistant chemically cross-linked aromatic polyimide membrane described in the present invention comprises a plurality of repeating units of a first aromatic polyimide comprising hydroxyl groups cross-linked with a second aromatic polyimide comprising carboxylic acid groups via covalent ester bonds. These membranes exhibit high permeability and selectivity in separation of mixtures of gases and liquids. | 09-24-2015 |
20150328596 | POLYBENZOXAZOLE MEMBRANES FROM SELF-CROSS-LINKABLE AROMATIC POLYIMIDE MEMBRANES - A method of making a polybenzoxazole (PBO) membrane from a self-cross-linked aromatic polyimide polymer membrane is provided. These membranes are useful in the separation of gas mixtures and liquid mixtures. The PBO membrane is made by fabricating a self-cross-linkable aromatic polyimide polymer membrane comprising both hydroxyl functional groups and carboxylic acid functional groups; cross-linking the polymer to form a self-cross-linked aromatic polyimide polymer membrane by heating the membrane at 250° to 300° C. under an inert atmosphere; and thermal heating the self-cross-linked aromatic polyimide polymer membrane at a temperature from about 350° to 500° C. under an inert atmosphere to convert the self-cross-linked aromatic polyimide polymer membrane into a PBO membrane. A membrane coating step may be added by coating the selective layer surface of the PBO membrane with a thin layer of high permeability material. | 11-19-2015 |