Hydrophilic transparent crosslinked copolymer and the method for

Details Hydrophilic transparent crosslinked copolymer and the method for Hydrophilic transparent crosslinked copolymer and the method for

1989-06-07

1990-09-11

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

351160H, C08F 2608

Patent

active

049564323

ABSTRACT:
The solution concerns hydrophilic transparent crosslinked copolymers and a method for their production.
A substance of the solution is the hydrophilic copolymer which can be prepared by the radical copolymerization of monomers with the general formula I, where R is hydrogen or methyl, alone or in their mutual combinations or by copolymerization of the monomers with general formula I and the monomers with general formula II, where R.sup.1 means hydrogen or methyl and X is a group OCH.sub.2 CH.sub.2 OH, OCH.sub.2 CH(OH)CH.sub.3, OCH.sub.2 CH(OH)CH.sub.2 OH, (OCH.sub.2 CH.sub.2).sub.3 OH, (OCH.sub.2 CH.sub.2).sub.2 OH, alkoxyl from OCH.sub.3 to OC.sub.16 H.sub.33, NH.sub.2, NHCH.sub.2 (OH)CH.sub.3, N(C.sub.2 H.sub.5).sub.2, and NH-tert-C.sub.4 H.sub.9, whereas the content of monomers of the general formula I and II amounts to 40 to 99.99 wt.-% of the entire mixture, where at least 5 wt.-% form the monomers of general formula I, with 0.01 to 60 wt.-% of a crosslinking agent, related to the entire monomer mixture, which has at least two olefinic double bonds, in the presence of radical initiators. ##STR1##

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