Powdery, water-soluble cationic polymer compositions, method for the production and use thereof
First Claim
1. A powdery, water-soluble, cationic polymer composition comprising at least a first and a second cationic polymer, wherein the first and the second cationic polymers differ in molecular weight, wherein the first cationic polymer is formed by radical polymerization of its monomer constituents in the presence of the second cationic polymer in aqueous solution, wherein the first and second cationic polymers comprise corresponding structural units, wherein the polymerization of the first cationic polymer takes place in an aqueous solution of the second cationic polymer according to the method of adiabatic gel polymerization, and wherein the ratio of the second to the first cationic polymer is from 0.01:
- 10 to 1;
3.
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Abstract
The invention relates to powdery, water-soluble cationic polymer compositions comprising at least two cationic polymer compositions comprising at least two cationic polymers having a different molecular weight. A first cationic polymer is formed in the presence of a second cationic polymer from monomer constituents in an aqueous solution according to the aqueous gel polymerization method. The invention also relates to the use of products in solid/liquid separation.
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20 Claims
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1. A powdery, water-soluble, cationic polymer composition comprising at least a first and a second cationic polymer, wherein the first and the second cationic polymers differ in molecular weight, wherein the first cationic polymer is formed by radical polymerization of its monomer constituents in the presence of the second cationic polymer in aqueous solution, wherein
the first and second cationic polymers comprise corresponding structural units, wherein the polymerization of the first cationic polymer takes place in an aqueous solution of the second cationic polymer according to the method of adiabatic gel polymerization, and wherein the ratio of the second to the first cationic polymer is from 0.01:
- 3. The composition of to claim, wherein the second cationic polymer has a weight-average molecular weight lower than 1 million.
Specification