Patent ID: 7687612
Filing Date: 2010-03-30
Classification: C09B

Abstract:
1. A reactive dyestuff with a dialkylether bridge group of the following formula (I), wherein, E (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 —OH, —CH W is a leaving group, —Cl, —OSO 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; and m and n are integers independent of one another between 1 to 4.