prov:value
| - Illustrative of difunctional crosslinking agents which may be used in the present invention are compounds such as ethylene glycol dimethacrylate, methylene bisacrylamide, methylene bismethacrylamide, divinyl benzene, vinyl methacrylate, vinyl crotonate, vinyl acrylate, divinyl acetylene, trivinyl benzene, glycerine trimethylacrylate, pentaerythritol tetramethacrylate, triallyl cyanurate, divinyl e
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