# US 10,370,537 B2 · Use of oxyimide-comprising copolymers or polymers as flame retardants, stabilisers, rheology modifiers for plastic materials, initiators for polymerisation- and grafting processes, crosslinking- or coupling agents and also plastic moulding compounds comprising such copolymers or polymers

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- Number: US 10,370,537 B2
- Document ID: US10370537B2
- Status: Granted
- Kind: B2
- Application number: 15/311,674
- Filed: 2015-04-16
- Published: 2017-04-20
- Granted: 2019-08-06
- Earliest claimed: 2014-05-28
- Assignees: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
- Applicants: Fraunhofer-Gesellschaft Zur FöRderung Der Angewandten Forschung E.V.
- Inventors: Rudolf Pfaendner; Markus Mazurowski
- Web page: https://patentgrep.com/patent/US10370537B2

## CPC

- C08L 79/04: Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C08F 8/32: by reaction with amines
- C09K 21/14: Macromolecular materials
- C08L 2201/02: Flame or fire retardant/resistant
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)
- C08F: MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE

## Abstract

The present invention relates to the use of oxyimide-comprising copolymers or polymers as flame retardants for plastic materials, stabilisers for plastic materials, rheology modifiers for plastic materials and also as initiators for polymerisation- and grafting processes and/or crosslinking- or coupling agents. In addition, the present invention relates to plastic material molding compounds which comprise such copolymers or polymers.

## Claims

### Claim 1

A method for producing a copolymer or polymer comprising at least one of the following structural elements:
the method comprising:
reacting a copolymer or polymer comprising a maleic anhydride unit or an itaconic anhydride unit with an amine according to the general formula IV:
H2N—O—R (IV),
wherein, respectively independently of each other,
R is an optionally substituted alkyl radical with 1 to 18 carbon atoms, an optionally substituted cycloalkyl radical with 6 to 22 carbon atoms, an optionally substituted aryl radical with 6 to 36 carbon atoms, or an optionally substituted acyl radical with 2 to 18 carbon atoms or hydrogen,
* is a binding site in the copolymer or polymer,
n is 0 or 1, and
X is methyl.

### Claim 2 (depends on 1)

The method of claim 1, which comprises reacting a copolymer or polymer comprising a maleic anhydride unit with an amine according to the general formula IV.

### Claim 3 (depends on 1)

The method of claim 1, which comprises reacting a copolymer or polymer comprising an itaconic anhydride unit with an amine according to the general formula IV.

### Claim 4 (depends on 1)

The method of claim 1, wherein R is an optionally substituted alkyl radical with 1 to 18 carbon atoms.

### Claim 5 (depends on 1)

The method of claim 1, wherein R is an optionally substituted cycloalkyl radical with 6 to 22 carbon atoms.

### Claim 6 (depends on 1)

The method of claim 1, wherein R is an optionally substituted aryl radical with 6 to 36 carbon atoms.

### Claim 7 (depends on 1)

The method of claim 1, wherein R is an optionally substituted acyl radical with 2 to 18 carbon atoms or hydrogen.

### Claim 8 (depends on 1)

The method of claim 1, wherein n is 0.

### Claim 9 (depends on 1)

The method of claim 1, wherein n is 1.

### Claim 10 (depends on 2)

The method of claim 2, wherein R is an optionally substituted alkyl radical with 1 to 18 carbon atoms.

### Claim 11 (depends on 2)

The method of claim 2, wherein R is an optionally substituted cycloalkyl radical with 6 to 22 carbon atoms.

### Claim 12 (depends on 2)

The method of claim 2, wherein R is an optionally substituted aryl radical with 6 to 36 carbon atoms.

### Claim 13 (depends on 2)

The method of claim 2, wherein R is an optionally substituted acyl radical with 2 to 18 carbon atoms or hydrogen.

### Claim 14 (depends on 2)

The method of claim 2, wherein n is 0.

### Claim 15 (depends on 2)

The method of claim 2, wherein n is 1.

### Claim 16 (depends on 3)

The method of claim 3, wherein R is an optionally substituted alkyl radical with 1 to 18 carbon atoms.

### Claim 17 (depends on 3)

The method of claim 3, wherein R is an optionally substituted cycloalkyl radical with 6 to 22 carbon atoms.

### Claim 18 (depends on 3)

The method of claim 3, wherein R is an optionally substituted aryl radical with 6 to 36 carbon atoms.

### Claim 19 (depends on 3)

The method of claim 3, wherein R is an optionally substituted acyl radical with 2 to 18 carbon atoms or hydrogen.

### Claim 20 (depends on 3)

The method of claim 3, wherein n is 0.