Patent application number | Description | Published |
20090159527 | MODIFIED MEMBRANE - A multilayered modified membrane and method for making the same, comprising a modified discriminating layer that can have a fouling resistant surface, improved salt rejection, antimicrobial properties, and/or improved solute, and/or small organics rejection as compared to membranes with unmodified discriminating layers. | 06-25-2009 |
20090194479 | MODIFIED POLYAMINE MEMBRANE - A modified polyamide membrane and method for making and using the same. The present invention includes many embodiments including methods comprising contacting a polyamide membrane with certain modifiers, including but not limited to certain oxazoline and/or thiazoline-based compounds, derivatives and polymers thereof. In one embodiment, the surface of a polyamide membrane is coated with a solution including a polyoxazoline and optionally a polyalkylene oxide material, followed by optional heating. Preferred embodiments may exhibit improved performance, e.g. increased rejection of certain species, (e.g. sodium chloride and/or boric oxides such as boric acid or various borate salts), reduced fouling, improved antimicrobial properties, and/or improved storage stability. | 08-06-2009 |
20100143733 | POLYAMIDE MEMBRANE WITH COATING OF POLYALKYLENE OXIDE AND POLYACRYLAMIDE COMPOUNDS - A polyamide membrane and method for making and using the same, including use within a spiral wound module. While many different embodiments are described, one embodiment includes a polyamide membrane including a coating comprising a combination of a polyalkylene oxide compound and a polyacrylamide compound. | 06-10-2010 |
20110120942 | MODIFIED POLYAMIDE MEMBRANE - A modified polyamide membrane and method for making and using the same. The present invention includes many embodiments including methods comprising contacting a polyamide membrane with certain modifiers, including but not limited to certain oxazoline and/or thiazoline-based compounds, derivatives and polymers thereof. In one embodiment, the surface of a polyamide membrane is coated with a solution including a polyoxazoline and optionally a polyalkylene oxide material, followed by optional heating. Preferred embodiments may exhibit improved performance, e.g. increased rejection of certain species, (e.g. sodium chloride and/or boric oxides such as boric acid or various borate salts), reduced fouling, improved antimicrobial properties, and/or improved storage stability. | 05-26-2011 |
20110155660 | MODIFIED MEMBRANE - A multilayered modified membrane and method for making the same, comprising a modified discriminating layer that can have a fouling resistant surface, improved salt rejection, antimicrobial properties, and/or improved solute, and/or small organics rejection as compared to membranes with unmodified discriminating layers. | 06-30-2011 |
20110220569 | COMPOSITE MEMBRANE INCLUDING COATING OF POLYALKYLENE OXIDE AND ACETOPHENONE COMPOUNDS - Composite membranes including a coating of polyalkylene oxide and acetophenone compounds along with various methods for making and using the same. In one embodiment, the composite membrane comprises a thin film polyamide layer including a coating of a reaction product of a polyalkylene oxide compound and an acetophenone compound. In another embodiment, the coating comprises a polymer including alkylene oxide repeating units and one or more acetophenone functional groups. | 09-15-2011 |
20110259817 | COMPOSITE MEMBRANE INCLUDING COATING OF POLYALKYLENE OXIDE AND TRIAZINE COMPOUNDS - Composite membranes including a coating of polyalkylene oxide and triazine compounds along with various methods for making and using the same. In one embodiment, the composite membrane comprises a thin film polyamide layer including a coating of a reaction product of a polyalkylene oxide compound and a triazine compound. | 10-27-2011 |
20110284454 | COMPOSITE MEMBRANE WITH COATING COMPRISING POLYALKYLENE OXIDE AND IMIDAZOL COMPOUNDS - Composite membranes including a coating comprising a combination of polyalkylene oxide and imidazol compounds along with various methods for making and using the same. In one embodiment, the composite membrane comprises a thin film polyamide layer including a coating of a reaction product of a polyalkylene oxide compound and an imidazol compound. In another embodiment, the coating comprises a polymer including alkylene oxide repeating units and one or more imidazol functional groups. | 11-24-2011 |
20110284457 | COMPOSITE MEMBRANE WITH COATING COMPRISING POLYALKYLENE OXIDE AND OXY-SUBSTITUTED PHENYL COMPOUNDS - Composite membranes including a coating of polyalkylene oxide and oxy-substituted phenyl compounds along with various methods for making and using the same. In one embodiment, the composite membrane comprises a thin film polyamide layer including a coating of a reaction product of a polyalkylene oxide compound and an oxy-substituted phenyl compound. In another embodiment, the coating comprises a polymer including alkylene oxide repeating units and one or more oxy-substituted phenyl functional groups. | 11-24-2011 |
20110284458 | COMPOSITE MEMBRANE WITH COATING COMPRISING POLYALKYLENE OXIDE AND BIGUANIDE-TYPE COMPOUNDS - Composite membranes including a coating of polyalkylene oxide and biguanide compounds along with various methods for making and using the same. In one embodiment, the composite membrane comprises a thin film polyamide layer including a coating of a reaction product of a polyalkylene oxide compound and a biguanide-type compound. In another embodiment, the coating comprises a polymer including alkylene oxide repeating units and one or more biguanide functional groups. | 11-24-2011 |
20120223010 | SULFONATED POLY (ARYL ETHER) MEMBRANE INCLUDING BLEND WITH PHENYL AMINE COMPOUND - A membrane comprising a blend of a sulfonated poly(aryl ether) and a phenyl amine compound along with methods for making and using the same. Many additional embodiments are described including applications for such membranes. | 09-06-2012 |
20120225960 | SULFONATED POLY(ARYL ETHER) MEMBRANE INCLUDING BLEND WITH PHENOL COMPOUND - A membrane comprising a blend of a sulfonated poly(aryl ether) and a phenol compound along with methods for making and using the same. Many additional embodiments are described including applications for such membranes. | 09-06-2012 |