Patent · US Expired

Polymer ammonium salts

US4900795A · kind A · utility

2Cited by

2References

8Claims

0Family size

Assignee

BASF SE

Inventors

Gerhard Hoffmann · Otterstadt, DE
Wolfgang Huemmer · Schifferstadt, DE
Horst Koch · Havelsee, DE
Dieter Littmann · Heßheim, DE

Key dates

Filing date	Jun 2, 1988
Grant date	Feb 13, 1990
Priority date	—
Expiry date	Jun 2, 2008

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F8/44
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

In polymer ammonium salts which are formed from a copolymer (A) which can be modified by a polymer-analogous reaction and from one or more amines (B), the copolymer (A) is obtainable by copolymerization of a monomer mixture of PA0 (a.sub.1) ethylene, PA0 (a.sub.2) acrylic acid and/or methacrylic acid, and PA0 (a.sub.3) one or more further monomers from the group consisting of the vinyl esters, vinyl ethers, acrylates, methacrylates, acrylamides and methacrylamides, and the amines (B) are selected from the group consisting of the PA0 (b.sub.1) cyclic amines of the general formula I ##STR1## and/or from the group consisting of the (b.sub.2) open-chain amines of the general formula II ##STR2## and/or from the group consisting of (b.sub.3) 1,4-thiazine, N,N',N"-trisvinylmelamine and N,N',N"-triallylmelamine, Z, R.sup.1, R.sup.2 and R.sup.3 having the meanings stated in the description.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.