Process for the mass colouration of polyesters

Details Process for the mass colouration of polyesters Process for the mass colouration of polyesters

C - Chemistry, Metallurgy

08

K

8/3, 400/7615

C08K 5/00 (2006.01) C08J 3/20 (2006.01) C08K 5/32 (2006.01) C08L 67/00 (2006.01) C09B 29/08 (2006.01) C09B 31/04 (2006.01)

Patent

CA 1111167

PROCESS FOR THE MASS COLOURATION OF POLYESTERS Abstract of the Disclosure A process for the mass colouration of polyesters which com- prises the use of a dye of the formula Image (I) wherein B represents alkylene of 2 to 4 carbon atoms, Y represents cycloalkyl of 5 to 6 carbon atoms, aralkyl of 7 to 14 carbon atoms or a substituted or unsub- stituted carbocyclic or heterocyclic aromatic radical, X represents cyanoalkyl of 1 to 5 carbon atoms or -B-OCO-Y, and A represents an aromatic radical of the formula Image wherein R1 represents halogen, cyano, trifluoromethyl or alkylsulphonyl of 1 to 4 carbon atoms, and R2 represents hydrogen or halogen, or represents the group D-N=N-D'- in which D and D' represent substituted or unsubstituted phenyl or naphthyl radicals.

293897

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