公开(公告)号：US3700599A

公开(公告)日：1972-10-24

申请号：US3700599D

申请日：1970-09-25

Applicant: ECONOMICS LAB

Inventor： MIZUNO WILILAM G ,  COPELAND JAMES L ,  SCHOLZE ARLENE E

IPC: C11D3/37 ,  C11D7/56

CPC classification number: C11D3/2086 ,  C11D3/3757 ,  C11D3/3769 ,  C11D3/378

Abstract: DIETERGENT COMPOSITIONS FOR MECHANICALLY CLEANING HARD SURFACES (E.G.DISHES) ARE CHARACTERIZED BY THE PRESENCE THEREIN OF A MIXTURE OF METALLIC SALT OF CITRIC ACID (E.G. SODIUM CITRATE) AND WATER SOLUBLE POLYMERIC, ORGANIC POLYETECTROLYTE (E.G. HYDROLYZED MALEIC ANHYDRIDE POLYMERS). THIS MIXTURE PERMITS THE REDUCTION OF OR ELIMINATION OF CONDENSED PHOSPHATE SALTS COMMONLY USED IN DETERGENT OMPOSITIONS OF THIS TYPE (E.G. MACHINE DISHWASHING DETERGENTS).