Polyacrylic hydrazide and crosslinking or curing agent for...

Details Polyacrylic hydrazide and crosslinking or curing agent for... Polyacrylic hydrazide and crosslinking or curing agent for...

C - Chemistry, Metallurgy

08

F

C08F 8/32 (2006.01) C08G 59/50 (2006.01) C08L 33/00 (2006.01) C08L 75/04 (2006.01)

Patent

CA 2543624

Disclosed is a crosslinking or curing agent for resins which contains, as an active constituent, a polyacrylic hydrazide with an average molecular weight of 10,000-150,000 wherein the degree of conversion to hydrazide is not less than 30% and the number of hydrazide groups in a molecule is not less than 85. Also disclosed are a polyacrylic hydrazide with an average molecular weight of 20,000-30,000 and a polyacrylic hydrazide with an average molecular weight of 50,000-150,000.

Cette invention concerne un agent de réticulation ou de durcissement pour résines qui contient, comme ingrédient actif, une hydrazide polyacrylique présentant un poids moléculaire moyen compris entre 10000 et 150000, le degré de conversion en hydrazide étant au moins de 30 % et le nombre de groupes hydrazide contenus dans une molécule étant au moins de 85. Cette invention concerne également une hydrazide polyacrylique présentant un poids moléculaire moyen compris entre 20000 et 30000 et une hydrazide polyacrylique présentant un poids moléculaire moyen compris entre 50000 et 150000.

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