| 摘要 |
<p>It is known to prepare polymers by reaction acids containing an unsaturation with polyepoxides. Such methods involve the use of hazardous or toxic monomers. However, the resultant polymers have a wide industrial utility. The present invention seeks to overcome the disadvantages of the monomers by partially proreacting the monomers to reduce the industrial hazard. The present invention provides a process for producing a radiation curable resin which comprises reacting a) a vinyl polymer comprising in polymerized form about 2 to 20 weight percent of a vinyl acid and the balance to make 100% of one or more copolymerizable monovinyl monomers, b) an unsaturated monocarboxylic acid, and c) a polypeptide having more than one 1,2-oxirane group per molecule; wherein the total acid equivalents per oxirane group is from about 0.8 to 1.2 acid and wherein a) comprises from about 1 to 10 percent of the total acid equivalents.</p> |
