# US 5,350,808 A · Poly(meth)acrylimides with different n-substitutes

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- Number: US 5,350,808 A
- Document ID: US5350808A
- Status: Granted
- Kind: A
- Application number: 07/994,251
- Filed: 1992-12-21
- Granted: 1994-09-27
- Earliest claimed: 1991-12-21
- Assignees: BASF SE
- Inventors: Siegmund Besecke; Andreas Deckers; Harald Lauke
- Web page: https://patentgrep.com/patent/US5350808A

## CPC

- C08F 8/48: Isomerisation; Cyclisation
- C08F: MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS

## Abstract

A polymer comprising essentially at least two different repeat units of the formula I ##STR1## where R.sup.1 and R.sup.2 are each hydrogen or methyl, n is 0 or an integer from 1 to 9, and R.sup.3+n are from two to ten mutually different groups selected from hydrogen, C.sub.1 -C.sub.22 -alkyl, C.sub.5 -C.sub.8 -cycloalkyl, C.sub.6 -C.sub.10 -aryl or C.sub.6 -C.sub.10 -aryl-C.sub.1 -C.sub.4 -alkyl, which radicals, except the C.sub.1 -C.sub.22 -alkyl, may each be monosubstituted, disubstituted or trisubstituted by radicals selected from the group consisting of C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy and halogen, is obtainable by reacting a polymer based on C.sub.1 -C.sub.20 -alkyl esters of (meth)acrylic acid with ammonia and from one to nine primary amines or a mixture of from two to ten primary amines of the general formula II R.sup.3+n NH.sub.2 II.

## Claims

### Claim 1

A polymer comprising essentially at least two different repeat units of the formula I ##STR4## where R.sup.1 and R.sup.2 are each hydrogen or methyl,
n is 0 or an integer from 1 to 9, and
R.sup.3+n are from mutually different groups selected from hydrogen and C.sub.1 -C.sub.4 alkyl,
obtained by reacting a polymer based on C.sub.1 -C.sub.20 -alkyl esters of (meth)acrylic acid with ammonia and primary amines of the formula II
R.sup.3+n NH.sub.2 II.

### Claim 2 (depends on 1)

A process for preparing a polymer as claimed in claim 1, which comprises reacting a polymer based on C.sub.1 -C.sub.20 -alkyl esters of (meth)acrylic acid with ammonia and primary amines of the formula II
R.sup.3+n NH.sub.2 II.