Patent application number | Description | Published |
20090143553 | TULIPALIN COPOLYMERS - Copolymers are disclosed comprising structural units derived from α-methylene-γ-butyrolactone, styrene, methyl methacrylate and acrylonitrile. The copolymers may be used as protective layers in multilayer articles that include UV sensitive substrate materials. The multilayer articles may also include a silicone hardcoat. | 06-04-2009 |
20100041837 | POLYARYLETHERS, BLENDS AND METHODS FOR MAKING - A method for making a polyarylether having amide functionality includes reacting a dihydroxyaromatic compound having amide functionality with a dihaloaromatic sulfone or dinitroaromatic sulfone in the presence of a base. Polyarylethers having amide functionality and blends are also provided. | 02-18-2010 |
20100041838 | POLYARYLETHERS, BLENDS AND METHODS FOR MAKING - A method for making a polyarylether block copolymer having amide functionality including reacting a dihydroxyaromatic compound having amide functionality and a dihaloaromatic sulfone or dinitroaromatic sulfone in the presence of a base to form a polyarylether having amide functionality and reacting the polyarylether having amide functionality with a polymer. The block copolymer and blends are also provided. | 02-18-2010 |
20100041853 | POLYARYLETHER MEMBRANES - A membrane including a polyarylether having amide functionality. The polyarylether having amide functionality includes units from at least one of structure I or structure II: | 02-18-2010 |
20100044314 | POLYARYLETHER COMPOSITIONS BEARING ZWITTERION FUNCTIONALITIES - A method for making a polysulfone having zwitterionic functionality comprising reacting a piperazine amine functionalized polysulfone with sultone is described as are blends with other polymers. Membranes containing polysulfones having zwitterionic functionality are also provided. Membranes thus formed are used in hemodialysis, hemofiltration, and water purification. | 02-25-2010 |
20100108607 | POLYSULFONE MEMBRANES METHODS AND APPARATUSES - The present invention relates to methods and apparatuses for water filtration comprising contacting a water stream with a membrane comprising a polysulfone having structural units of Formula I | 05-06-2010 |
Patent application number | Description | Published |
20080203012 | MEMBRANE, APPARATUS, AND ASSOCIATED METHOD - A membrane is provided that is formed from a composition. The composition comprises a polyarylene ether polymer or copolymer comprising a zwitterion; or comprises a polyarylene polymer or copolymer comprising a zwitterion. | 08-28-2008 |
20080207822 | COMPOSITION AND ASSOCIATED METHOD - Provided is a composition including a polyarylene ether polymer or copolymer comprising a zwitterionic, group. The zwitterionic group can derive from a zwitterionic precursor such as 4-(2-hydroxyethyl)-1-piperazine ethane sulfonic acid and comprises at least one atom of sulfur, phosphorus, or nitrogen. Embodiments also relate to an article, made from the composition, such as a membrane. | 08-28-2008 |
20080312349 | METHOD OF MAKING AND USING MEMBRANE - A process is provided that includes attaching a zwitterion to a polymer or a copolymer, wherein the polymer or copolymer comprises a polyarylene ether or a polyarylene. | 12-18-2008 |
20120130042 | POLYETHERSULFONE COMPOSITIONS WITH HIGH HEAT AND GOOD IMPACT RESISTANCE - Polyethersulfones having Tg greater than about 225° C. and a notched Izod value greater than about 1 ft-lb/in, as measured by ASTM D256, comprise from about 5 mol % to less than about 40 mol % structural units of formula 1; and | 05-24-2012 |
20120130043 | POLYETHERSULFONE COMPOSITIONS WITH HIGH HEAT AND GOOD IMPACT RESISTANCE - Polyethersulfones having Tg greater than about 225° C. and a notched Izod value greater than about 1 ft-lb/in, as measured by ASTM D256, comprise from about 5 mol % to less than about 40 mol % structural units of formula 1; and | 05-24-2012 |
20130245223 | HIGH HEAT POLYETHERSULFONE COMPOSITIONS - High heat polyethersulfone compositions are provided which possess unexpectedly high glass transition temperatures. The polyethersulfone compositions comprise structural units derived from fluorenone bisphenols such as 9,9-bis(4-hydroxyphenyl)fluorene, and structural units derived from at least one biphenyl-bissulfone such as 4,4′-bis((4-chlorophenyl)sulfonyl)-1,1′-biphenyl. The novel polyethersulfone compositions may further comprise structural units derived from one or more biphenols such as 4,4′-biphenol, bisphenols such as BPA, or other electrophilic sulfone monomers, such as bis(4-chlorophenyl)sulfone. In one embodiment, the polyethersulfone composition of the present invention comprises structural groups derived exclusively from 9,9-bis(4-hydroxyphenyl)fluorene and 4,4′-bis((4-chlorophenyl)sulfonyl)-1,1′-biphenyl and exhibits a single glass transition of greater than 300° C. | 09-19-2013 |
Patent application number | Description | Published |
20110168631 | METHODS AND APPARATUSES FOR WATER FILTRATION USING POLYARYLETHER MEMBRANES - Membranes for use in methods and apparatuses for water filtration are composed of at least one polyarylethernitrile membrane having structural units of formula 1 | 07-14-2011 |
20130315963 | Mechanically Strong Absorbable Polymeric Blend Compositions of Precisely Controllable Absorption Rates, Processing Methods, And Products Therefrom - Novel absorbable polymer blends are disclosed. The blends are useful for manufacturing medical devices having engineered degradation and breaking strength retention in vivo. The blends consist of a first absorbable polymeric component and a second absorbable polymeric component. The weight average molecular weight of the first polymeric component is higher than the weight average molecular weight of the second polymeric component. At least at least one of said components is at least partially end-capped by a carboxylic acid group. Further aspects are medical devices made therefrom. | 11-28-2013 |
20150053608 | POLYARYLNITRILE COPOLYMER MEMBRANES - A membrane including a polyarylnitrile copolymer is presented. The polyarylnitrile copolymer includes structural units having a formula (I) and at least one terminal group having a formula (II): | 02-26-2015 |
20150148496 | Absorbable Polymeric Blend Compositions with Precisely Controllable Absorption Rates, Processing Methods, and Dimensionally Stable Medical Devices Therefrom - Novel absorbable polymeric blends are disclosed. The blends have a first absorbable polymer type that is a polylactide polymer or a copolymer of lactide and glycolide and a second absorbable polymer type that is poly(p-dioxanone), wherein the first absorbable polymer type or the second absorbable polymer type or the first absorbable polymer type and the second absorbable polymer type additionally comprise a first polymeric component and a second polymeric component. The first polymeric component has a higher weight average molecular weight than the second polymeric component and at least one of said components is at least partially end-capped by a carboxylic acid. The novel polymeric blends are useful for manufacturing medical devices having dimensional stability, having engineered degradation and breaking strength retention in vivo. Also disclosed are novel absorbable medical devices made from these novel polymer blends, as well as novel methods of manufacture. | 05-28-2015 |
20150174287 | Mechanically Strong Absorbable Polymeric Blend Compositions of Precisely Controllable Absorption Rates, Processing Methods, and Products Therefrom - Novel absorbable polymer blends are disclosed. The blends are useful for manufacturing medical devices having engineered degradation and breaking strength retention in vivo. The blends consist of a first absorbable polymeric component and a second absorbable polymeric component. The weight average molecular weight of the first polymeric component is higher than the weight average molecular weight of the second polymeric component. At least at least one of said components is at least partially end-capped by a carboxylic acid group. Further aspects are medical devices made therefrom. | 06-25-2015 |
20150174288 | Mechanically Strong absorbable Polymeric Blend Compositions of Precisely Controllable Absorption Rates, Processing Methods, and Products Therefrom - Novel absorbable polymer blends are disclosed. The blends are useful for manufacturing medical devices having engineered degradation and breaking strength retention in vivo. The blends consist of a first absorbable polymeric component and a second absorbable polymeric component. The weight average molecular weight of the first polymeric component is higher than the weight average molecular weight of the second polymeric component. At least at least one of said components is at least partially end-capped by a carboxylic acid group. Further aspects are medical devices made therefrom. | 06-25-2015 |