Patent ID: 8167983
Filing Date: 2012-05-01
Classification: B01D

Abstract:
1. A solution composition for producing a membrane wherein the composition comprises a mixture of 0.1% to 69.5% by weight of a highly branched polymer, 0.5% to 69.9% by weight of a linear polymer and 30% to 99.4% by weight of a solvent, wherein the percentages are based on the sum of the highly branched polymer, the linear polymer, and the solvent, wherein the linear polymer is at least one polymer selected from the group consisting of a polyimide, polyetherimide, polysulphone, polyarylate, polyetherarylate, polycarbonate, polypyrrolone, polyacetylene, polyethylene oxide, polyphenylene oxide, polyphenylene sulphide, polybenzimidazole, polyoxadiazole, polyetheretherketone and polyaniline, and wherein the highly branched polymer is at least one polymer selected from the group consisting of a polyamide, polyesteramide, polyamidoamine, polyimidoamine, polypropylenamine, polyimide, polyetherimide, polysilane, polysiloxane, polysulfone, polyurethane and polyurea.