Patent ID: 6031037
Filing Date: 2000-02-29
Classification: C02F,C08L

Abstract:
A stable, pourable, liquid composition containing 20 to 60% by weight of a blend of a water soluble high IV polymer and a water soluble low IV cationic coagulant polymer, wherein the water soluble high IV polymer is a non-ionic or cationic polymer of water soluble ethylenically unsaturated cationic monomer or monomer blend and has an apparent IV of at least 2 dl/g as determined by measurements at 25.degree. C. using a suspended level viscometer on solutions in a 1 molar sodium chloride solution buffered to a pH of 7.5 and is present in the composition in an amount of 3 to 40% by weight, the water soluble low IV cationic coagulant has an IV of below 1.5 dl/g as determined by measurements at 25.degree. C. using a suspended level viscometer on solutions in a 1 molar sodium chloride solution buffered to a pH of 7.5 and is selected from polyamines, cationic dicyandiamide polymers and polymers of 70 to 100% ethylenically unsaturated cationic monomer selected from the group consisting of diallyl dimethyl ammonium chloride, dialkyl amino alkyl (meth) acrylates (including acid addition salts and quaternary ammonium salts) and dialkyl amino alkyl (meth) acylamides (including acid addition salts and quaternary ammonium salts) with 0 to 30% by weight acrylamide, and is present in the composition in an amount of 5 to 40% by weight, and the composition has a Brookfield viscosity of less than 30,000 cps as measured using spindle 6 at 10 rpm at 25.degree. C. and is a dispersion of the high IV polymer in an aqueous phase which is an aqueous solution of low IV coagulant polymer and 0.01 to 1 part by weight of a water soluble multi-hydroxy compound per part by weight of the coagulant polymer.