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| 20080234443 | Process for fluid phase in-line blending of polymers - A process for fluid phase in-line blending of polymers. The process includes providing two or more reactor trains configured in parallel and a separator for product blending and product-feed separation; contacting in at least one of the parallel reactor trains olefin monomers having three or more carbon atoms, catalyst systems, optional comonomers, optional scavengers, and optional inert diluents or inert solvents, at a temperature above the solid-fluid phase transition temperature of the polymerization system and a pressure no lower than 10 MPa below the cloud point pressure of the polymerization system and less than 1500 MPa; forming a reactor effluent including a homogeneous fluid phase polymer-monomer mixture in each parallel reactor train; combining the reactor effluent from each parallel reactor; passing the combined reactor effluent through the separator; maintaining the temperature and pressure within the separator above the solid-fluid phase transition point but below the cloud point pressure and temperature to form a fluid-fluid two-phase system including a polymer-rich blend phase and a monomer-rich phase; and separating the monomer-rich phase from the polymer-rich blend phase. The separated monomer-rich phase is recycled to the polymerization reactor bank. The polymer-rich blend phase is conveyed to a downstream finishing stage for further monomer stripping, drying and/or pelletizing to form a polymer product blend. | 09-25-2008 |
| 20080317990 | CROSSLINKED POLYETHYLENE ARTICLES AND PROCESSES TO PRODUCE SAME - A high strength, flexible crosslinked polyethylene (PEX) material is provided wherein the base polymer is intermixed with a polymer modifier which affects the amorphous region of the polymer, leaving the crystalline portion of the base polymer virtually unaffected. Consequently, the amorphous region's density is lowered, resulting in a more flexible final product, while the crosslinked molecular structure and/or crystalline portion of the polymer, which controls the strength of the base polymer, remains strong. The polymer modifier can comprise a hydrocarbon fluid such as PAO, Group III basestocks, or a gas-to-liquid hydrocarbon. A method for producing the plastic material is also provided. The plastic material has particular utility in the production of tubing, piping, and conduits for transporting gases, liquids, and the like, as well as wire and cable coatings such as jacketing and insulation. | 12-25-2008 |
| 20090041820 | Functional polymer compositions - Functional polymer compositions and methods of forming such compositions are provided. The functional polymer compositions include at least 50 wt % of one or more polymer components; from 0.1 to 50 wt % of one or more fluids; and from 1 to 50 wt % of one or more active substrates. The combination of one or more fluids and one or more active substrates provides an article from such polymer composition with one or more special functional effects selected from moisturizing, anti-bacterial, disinfecting, anti-viral, anti-mildew, anti-mold, anti-fungal, anti-microbial, moisture/odor absorbing, fragrancing, insect repelling, anti-static and combinations thereof. The one or more fluids and one or more active substrates are released to the surface of polymer based articles. The functional polymer compositions are suitable for a wide range of end use applications including woven and non-woven fabrics. | 02-12-2009 |
| 20090197995 | Tire Innerliners Having Improved Cold Temperature Properties - Provided are elastomeric compositions, such as a tire innerliner, comprising at least one isobutylene based elastomer and at least one hydrocarbon fluid additive (“HFA”). The compositions have improved cold temperature properties and are particularly useful as tire innerliners for an aircraft tire. The use of a HFA in the elastomeric composition may allow for the use of reduced amounts of secondary elastomers, such as natural rubber, while allowing for an improved balance in the composition's brittleness and permeability properties. Examples of useful HFAs include polyalphaolefins, high purity hydrocarbon fluids, and water white group III mineral oils. | 08-06-2009 |
| 20100076121 | TIRE INNERLINERS HAVING IMPROVED COLD TEMPERATURE PROPERTIES - Provided are elastomeric compositions, such as a tire innerliner, comprising at least one isobutylene based elastomer and at least one hydrocarbon fluid additive (“HFA”). The compositions have improved cold temperature properties and are particularly useful as tire innerliners for an aircraft tire. The use of a HFA in the elastomeric composition may allow for the use of reduced amounts of secondary elastomers, such as natural rubber, while allowing for an improved balance in the composition's brittleness and permeability properties. Examples of useful HFAs include polyalphaolefins, high purity hydrocarbon fluids, and water white group III mineral oils. | 03-25-2010 |
| 20110064931 | Calendered Films of Plasticized Blends of Plastomer and Impact Copolymer - This invention relates to a film or sheet and a process to make a film or sheet, said film or sheet having a thickness of from 0.5 to 35 mils (12.7 to 889 microns) comprising a blend composition comprising:
| 03-17-2011 |
| 20110111153 | CROSSLINKED POLYETHYLENE PROCESS - A method for producing a high strength, flexible crosslinked polyethylene (PEX) material is provided wherein the base polymer is intermixed with a polymer modifier which affects the amorphous region of the polymer, leaving the crystalline portion of the base polymer virtually unaffected. Consequently, the amorphous region's density is lowered, resulting in a more flexible final product, while the crosslinked molecular structure and/or crystalline portion of the polymer, which controls the strength of the base polymer, remains strong. The polymer modifier can comprise a hydrocarbon fluid such as PAO, Group III basestocks, or a gas-to-liquid hydrocarbon. The plastic material has particular utility in the production of tubing, piping, and conduits for transporting gases, liquids, and the like, as well as wire and cable coatings such as jacketing and insulation. | 05-12-2011 |
| 20110201750 | Modifiers For Nitrile Containing Elastomers - This invention relates to a polymer composition comprising: 70 wt % to 99.5 wt % of a nitrile-group containing elastomer, wherein the elastomer has: a Mooney Viscosity of 15 to 115 MU; and a nitrile monomer content of 0.5 wt % to 50 wt %; and 0.5 wt % to 30 wt % of a non-functionalized plasticizer (NFP), wherein the NFP has: a kinematic viscosity at 100° C. of 4 to 1000 cSt, a flash point of ≧200° C., a viscosity index of ≧120, and a specific gravity of ≦0.865; and wherein the composition has: a 25% compression set at 70 hours and −30° C. that is at least 110% of the 25% compression set of same composition without the NFP tested at the same conditions, and a retained tensile strength, in MPa, after 168 hours at 175° C., that is at least about 88% of the retained tensile strength of the same composition that has not been aged. | 08-18-2011 |
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| 20100261026 | Compositions comprising oriented, immobilized macromolecules and methods for their preparation - The present invention provides methods and compositions that facilitate the identification of structures of a variety of macromolecules. For instance, the present invention provides methods for the selective immobilization of macromolecules in an extended or oriented state. The present invention also provides compositions comprising macromolecules selectively immobilized in extended or oriented states. | 10-14-2010 |
| 20110086774 | Protein Detection Via Nanoreporters - The invention provides methods, compositions, kits and devices for the detection of proteins. In some embodiments, the invention allows for multiplexed protein detection. | 04-14-2011 |
| 20110207623 | METHODS FOR DETECTION AND QUANTIFICATION OF ANALYTES IN COMPLEX MIXTURES - The invention provides a diverse population of uniquely labeled probes, containing about thirty or more target specific nucleic acid probes each attached to a unique label bound to a nucleic acid. Also provided is a method of producing a population of uniquely labeled nucleic acid probes. The method consists of (a) synthesizing a population of target specific nucleic acid probes each having a different specifier; (b) synthesizing a corresponding population of anti-genedigits each having a unique label, the population having a diversity sufficient to uniquely hybridize to genedigits within the specifiers, and (c) hybridizing the populations of target nucleic acid probes to the anti-genedigits, to produce a population in which each of the target specific probes is uniquely labeled. Also provided is a method of detecting a nucleic acid analyte. The method consists of (a) contacting a mixture of nucleic acid analytes under conditions sufficient for hybridization with a plurality of target specific nucleic acid probes each having a different specifier; (b) contacting the mixture under conditions sufficient for hybridization with a corresponding plurality of anti-genedigits each having a unique label, the plurality of anti-genedigits having a diversity sufficient to uniquely hybridize to genedigits within the specifiers, and (c) uniquely detecting a hybridized complex between one or more analytes in the mixture, a target specific probe, and an anti-genedigit. | 08-25-2011 |
