TH3746A - A chemical compound with a crosslinking reaction and a mixed selectable membrane made from this mixture. - Google Patents

Abstract

Mixed membranes consist of (a) a flexible film made of polytetrafluoroethylene. The porosity is very fine. Or other hydrophobic materials with a steam transfer rate of more than 10,000 g / sq m 24 h, proposed in excess of 100,000 g / m 24 h and with a water contact angle in front of more than 90 degrees; and (b) The amorphous layer of hydrophilic substances with continuous cross-linking Which is proposed to be made with polyoxymethylene Polythene ether Which partially penetrates into the surface of the hydrophobic layer, the hydrophobic layer forms a composite membrane that The water vapor transfer rate of this completely mixed component is equal or may be higher than the water vapor transfer rate of the hydrophobic material, but Only one And, at the same time, provides two separation mechanisms, one derived from a very fine porous hydrophobic material and one derived from the hydrophobic layer And this membrane can be separated in Many types of businesses Polyoxymethylene Polythene material Hydrophobic ter that is cross-linked And cross the line And then a new chemical compound

Claims (1)

1. A crosslinked chemical compound consisting of - with (a) a distal unsaturated polyene component whose formula is R - [(CH2) m CH = CH2] x where m = 0 or 1 and X> = 2 (b) Polythyol type components with the following formula: (Chemical formula) where n = 0 or 1 R \ '= H or OH and Y> = 2 and (c) radical initiators in which X and Y are not equal to 2 simultaneously and at least one symbol of R. Is polyhydroxyethylene and R, another symbol may be polyoxyethylene or pig-free polyvalent.