Granted Patent B2

US 8,506,757 · App. 12/620,962 · Granted Aug 13, 2013

Abstract

Claims (35)

1. A water-soluble, cationic polymer comprising randomly distributed units of formula (I):

wherein X on said unit of formula (I) is a hydrophobic moiety selected from the group consisting of formula (II), (IV), (VI), (VII), and (VIII):

wherein

(a) R 1 and R 2 , identically or differently, are a straight chain or branched aliphatic or olefinic or aromatic group having up to 22 carbon atoms and up to 4 double bonds;

(b) Y is a straight chain or branched aliphatic or olefinic or aromatic group having up to 20 carbon atoms and up to 8 double bonds; and

(c) p is an integer in the range of from 2 to 10 and m is an integer in the range of from 1 to 10.

2. A composition comprising the polymer of claim 1 and at least one additional compound, wherein said at least one additional compound is selected from the group consisting of

(a) contaminant control agents for pitch and stickies deposits;

(b) deposition control agents for papermaking process equipment;

(c) flocculants for water treatment;

(d) coagulants for water treatment;

(e) drainage aids for papermaking;

(f) retention aids for papermaking;

(g) sizing agent for paper products;

(h) adhesives;

(i) creping adhesives;

(j) plasticizers for optimizing resin properties;

(k) modifiers for optimizing resin properties

(l) cleaning aids; and

(m) release aids.

3. A water soluble, cationic polymer comprising randomly distributed units of formula (I) and formula (IX):

wherein

X on said unit of formula (I) is a hydrophobic moiety selected from the group consisting of formula (II), (IV), (VI), (VII), and (VIII):

(a) wherein R 1 and R 2 , identically or differently, are a straight chain or branched aliphatic or olefinic or aromatic group having up to 22 carbon atoms and up to 4 double bonds;

(b) Y is a straight chain or branched aliphatic or olefinic or aromatic group having up to 20; carbon atoms and up to 8 double bonds;

(c) p is an integers in the range of from 2 to 10 and m is an integers in the range of from 1 to 10, and

wherein n and r, the numbers of randomly distributed units of formula (I) and formula (IX) in the polymer respectively, are integers in the range of from 5 to 10,000; and the ratio of r:n is in the range from 1:10 to 1000:1.

4. The polymer of claim 3 , wherein Y is a straight chain C 4 alkyl group, p is 2, m is 1, the sum of n and r is in the range of from 50 to 5000, and the ratio of r:n is in the range of from 10:1 to 100:1.

5. The polymer of claim 4 , wherein the polymer comprises randomly distributed units of formula (I) wherein X on said units is a moiety of formula (II).

6. The polymer of claim 4 , wherein the polymer comprises randomly distributed units of formula (I) wherein X on said units is a moiety of formula (IV).

7. The polymer of claim 4 , wherein the polymer comprises randomly distributed units of formula (I) wherein X on said units is a moiety of formula (VI).

8. The polymer of claim 4 , wherein the polymer comprises randomly distributed units of formula (I) wherein X on said units is a moiety of formula (VII).

9. The polymer of claim 4 , wherein the polymer comprises randomly distributed units of formula (I) wherein X on said units is a moiety of formula (VIII).

10. The polymer of claim 4 , wherein the molecular weight of said polymer is in the range of from about 1,000 to about 1,000,000 Daltons.

11. The polymer of claim 4 , wherein the molecular weight of said polymer is in the range of from about 4,000 to about 500,000 Daltons.

Assignments (20)