Patent ID: 6313201
Filing Date: 2001-11-06
Classification: A61K,C12N

Abstract:
A composition comprising a catalase modified with a copolymer (A) comprising:(a) one or more alkenyl ether of the formula (1) mentioned below,(b) maleic anhydride, and(c) at least on monomer selected from the group consisting of unsaturated carboxylic acid, vinyl compound and olefin,wherein the above (a), (b) and (c) are 5-60:20-90:0-30 in molar ratio, respectively, and being stabilized against peroxoacid salt: ##STR3##wherein Z is a residue of a compound having 2 to 8 hydroxyl group, AO is one or more oxyalkylene groups of 2 to 18 carbon atoms and may be in block or random addition when two or more of them are in addition at the same time, R.sup.1 is an alkenyl group having 2 to 5 carbon atoms, R.sup.2 is a hydrocarbon or acyl group having 1 to 24 carbon atoms, a and b are each 0 to 1000, m is 1 to 7 and a+bm is 1 to 1000,and a copolymer (B) consisting of an ethylenically unsaturated monomer and a monomer selected from the group consisting of a monomer having a carboxyl group and a monomer having an acid anhydride group, or a salt of the copolymer (B).