Patent ID: 9067035
Filing Date: 2015-06-30
Classification: A61B,A61M,B01D,C08F,C08J,C08L

Abstract:
1. A dryer polymer substance comprising a non-porous copolymer grafted with a compound having sulfonic group, said copolymer comprising poly(vinylidene fluoride hexafluoropropylene)-graft-poly(styrene sulfonated acid) (P(VDF-HFP)-g-PSSA) or any derivative thereof, wherein said dryer polymer substance comprises a dryer tube, wherein the percentage of grafting is in a range of 20-50%, wherein the substance is adapted to pervaporate water, water vapor or both from a gas while maintaining the concentration of CO 2 , O 2 or both in said gas, and wherein the tube has a water evaporation rate of over 150 micro-liter/hour at a temperature of 22° C. and at 34% humidity, when the internal diameter of the tube is 1.0±0.1 millimeter (mm); the outer diameter of the tube is 1.24±0.02 mm and the length of the tube is 50 mm.