| 摘要 |
An unsaturated condensate of a methlyolmelamine, an acrylamide, an unsaturated fatty acid amide and optionally a C1 to C10 alcohol, wherein the methylolmelamine has at least about 5 methylol groups per melamine ring, wherein substantially all the methylol groups are condensed with acrylamide, unsaturated fatty acid amide or alcohol, wherein the number of acrylamide moieties of the condensate is in the range of about 1 to about 4 per melamine ring and the number of unsaturated fatty acid amide moieties is in the range of about 0.5 to about 2 per melamine ring and wherein the ratio of acrylamide moieties to unsaturated fatty acid amide moieties is in the range of about 1:1 to about 3:1. The unsaturated condensates are used in high solids unsaturated coating systems containing unsaturated oil-modified resins. |
