Material in the manufacture of polymeric articles

Details Material in the manufacture of polymeric articles Material in the manufacture of polymeric articles

C - Chemistry, Metallurgy

08

L

C08L 33/16 (2006.01) C08F 220/28 (2006.01)

Patent

CA 2151612

Disclosed is a polymeric article at least a portion of which is manufactured from a hydrogel material having a hydration level of from between about 45 % and 56 % by weight, which hydrogel is formed from a xerogel which is a copolymer system that can be solvolyzed and hydrated and during which undergoes a linear expansion of from about -7 % to about +7 %. The polymeric article is comprised of a copolymer system comprising dichloroacetate ester of glyceryl acrylate, methacrylate and ethacrylate and one or more compatible ethylenically unsaturated without such solvolyzable groups.

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