Patent ID: 6136200
Filing Date: 2000-10-24
Classification: B01D,C02F,C09D

Abstract:
A method for the detackification of oversprayed paint in a paint spray operation wherein said oversprayed paint comes into contact with water from a waste water system, the method comprising:dosing the water from the waste water system within an effective detackifying amount of a composition comprising:a polymer consisting essentially of:from about 10 to about 50 mole percent cationic mer units, the cationic mer units being selected from the group consisting of dimethylaminoethylmethacrylate sulfuric acid salt, dimethylaminoethylmethacrylate methylchloride quaternary salt or mixtures thereof;from about 1 to about 10 mole percent ethylenically unsaturated anionic mer units; andfrom about 40 to about 89 mole percent acrylamide mer units,wherein the polymer has an intrinsic viscosity of from about 1.2 to about 3.8; andfrom about 0.2 to about 10.0 parts by weight of aluminum sulfate as the octadecahydrate for each part by weight of the polymer.