A water insoluble hydrophilic gel comprising: about 30 to about 90% of {HEAD ~ a hydrophilic polymer} of {TAIL ~ identical or different watersoluble mono olefinic monomers}, or copolymer of said watersoluble monomers with 1 to 70% of water insoluble, identical or different mono olefinic monomers, which polymer or copolymer is cross linked with about 10 to about 70% of a terminal diolefinic hydrophobic macromer having a molecular weight from about 400 to about 8000 is disclosed 
A water insoluble hydrophilic gel comprising : about 30 to about 90 % of { HEAD ~ a hydrophilic polymer } of { TAIL ~ identical or different watersoluble mono olefinic monomers } , or copolymer of said watersoluble monomers with 1 to 70 % of water insoluble , identical or different mono olefinic monomers , which polymer or copolymer is cross linked with about 10 to about 70 % of a terminal diolefinic hydrophobic macromer having a molecular weight from about 400 to about 8000 is disclosed
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH