POLYMERS CONTAINING PRIMARY ALIPHATIC CARBONAMIDE GROUPS AND/OR N-METHYLOL DERIVATIVES OF THE CARBONAMIDE GROUPS

摘要

Copolymers according to the invention contain a new crosslinking system based on carbonamide and/or N-methylol carbonamide groups in the copolymer, the crosslinked polymers containing the following structural units in which R represents a straight-chain or branched aliphatic hydrocarbon radical having 0 to 9 carbon atoms, R represents n hydrogen atom or a methyl radical, and R represents hydrogen or a -CH2OH- group, and have molecular weights of between 103 and 106. The invention also relates to a process of making the copolymers, which have among other advantages a superior resistance to solvents. They are useful as coating compositions and the like.