Patent ID: 7619074
Filing Date: 2009-11-17
Classification: C09B

Abstract:
1. A reactive dyestuff with an N,N-dialkylamino bridge group of the following formula (I), wherein, E R is hydrogen, C (R B and B′ each independently are selected from the group consisting of a direct bond, —SO k is an integer between 1 to 6; Z and Z′ each independently are selected from the group consisting of —SO d and r are integers independent of one another between 2 to 4; U is —CH W is a leaving group, selected from the group consisting of —Cl, —SO R U′ is α,β-halopropionyl, α-haloacryloyl, β-halopropionyl or α-haloacryloyl; R′ is hydrogen or C i and j are integers independent of one another between 0 to 2, and the sum of i and j is not 0; m and n are integers independent of one another between 2 to 4; and the ring containing the dashed lines represents an optional fused benzene ring.