BigPatents India

A laundry cleaning composition comprising a block copolymer containing at least one group A and at least one group B in which each group A is a polymeric block built up from an ethylenically unsaturated polymerisable monomer selected from vinylformamide, vinylimidazoles and compound of the general formula H2C=C(R)-CO-R-1 (I) Where R is a hydrogen atom or a methyl group; and R1 is a group of formula –O-(CHR2)n-NR3R4 or –NR5R6 in which n is 1, 2 or 3, R2 represent a hydrogen atom or a hydroxyl or alkyl group, R3 and R4 each independently represent a hydrogen atom or an optionally substituted alkyl group or R3 and R4 together with the interjacent nitrogen atom represent atom or an optionally substituted alkyl group or R5 and R6 together with the interjacent nitrogen atom represent a heterocyclic group; and each group B is a polymeric block built up from an alkylene oxide, alkylene glycol or cyclic ether monomer or a mixture thereof, wherein the polymer is present in amount of from 0.01% to 25% by weight Drawing: NIL Total Pages: 47 Fig. Nil