# US 10,308,805 B2 · Thermoplastic compositions having low gloss and high impact strength

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- Number: US 10,308,805 B2
- Document ID: US10308805B2
- Status: Granted
- Kind: B2
- Application number: 15/553,690
- Filed: 2015-12-09
- Published: 2018-09-27
- Granted: 2019-06-04
- Earliest claimed: 2015-12-09
- Assignees: Covestro LLC
- Applicants: Covestro LLC
- Inventors: Marina Rogunova; James P. Mason
- Web page: https://patentgrep.com/patent/US10308805B2

## CPC

- C08L 69/00: Compositions of polycarbonates; Compositions of derivatives of polycarbonates
- C08L 67/02: Polyesters derived from dicarboxylic acids and dihydroxy compounds (C08L67/06 takes precedence)
- C08L 2205/025: containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
- C08L 2205/03: containing three or more polymers in a blend
- C08L 2205/035: containing four or more polymers in a blend
- C08L 2205/05: containing polymer components which can react with one another
- C08L 2207/53: Core-shell polymer
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)

## Abstract

Thermoplastic compositions are disclosed comprising a thermoplastic resin, a first impact modifier characterized by core-shell morphology and comprising a functional shell polymer, and a second impact modifier comprising a component capable of reaction with a functional shell polymer. In addition, thermoplastic compositions are also disclosed that comprise a thermoplastic resin and a loose agglomerations of particles that have open spaces, at least 50% of the loose agglomerations comprise open spaces that measure 31 to 60% by area of the loose agglomeration, and particles that are characterized by core-shell morphology. The inventive compositions demonstrate low gloss, high impact strength, good weatherability, and good flow properties.

## Claims

### Claim 1

A thermoplastic composition comprising:
A) a thermoplastic resin;
B) an impact modifier capable of reaction with a functional shell polymer, that does not comprise a functional shell polymer; and
C) an impact modifier characterized by core-shell morphology and comprising a functional shell polymer,
wherein Component B and Component C form agglomerations of particles, wherein at least 50% of the agglomerations comprise open spaces that measure 31 to 60% by area of the agglomeration.

### Claim 2 (depends on 1)

The thermoplastic composition of claim 1, wherein Component B comprises a siloxane.

### Claim 3 (depends on 1)

The thermoplastic composition of claim 1, wherein Component B comprises acrylic.

### Claim 4 (depends on 1)

The thermoplastic composition of claim 1, wherein Component B comprises an impact modifier capable of reaction with epoxy functionality that does not comprise epoxy functionality.

### Claim 5 (depends on 1)

The thermoplastic composition of claim 1, wherein Component B or Component C comprises acrylate.

### Claim 6 (depends on 1)

The thermoplastic composition of claim 1, wherein the functional shell polymer of Component C is epoxy functionality.

### Claim 7 (depends on 6)

The thermoplastic composition of claim 6, wherein the epoxy functionality of Component C is glycidyl (meth)acrylate.

### Claim 8 (depends on 1)

The thermoplastic composition of claim 1, wherein the agglomerations comprise particles having a diameter between 0.4 and 4.0 microns.

### Claim 9 (depends on 1)

A molded part comprising the thermoplastic composition of claim 1.

### Claim 10

A thermoplastic composition comprising:
a thermoplastic resin; and
agglomerations of particles;
wherein at least 50% of the agglomerations comprise open spaces that measure 31 to 60% by area of the loose agglomeration,
and wherein the agglomerations of particles comprise particles characterized by core-shell morphology.

### Claim 11 (depends on 10)

The thermoplastic composition of claim 10, wherein the agglomerations comprise Component B: an impact modifier and Component C: a second impact modifier.

### Claim 12 (depends on 11)

The thermoplastic composition of claim 11, wherein Component B does not comprise a functional shell polymer.

### Claim 13 (depends on 11)

The thermoplastic composition of claim 11, wherein Component C comprises a functional shell polymer.

### Claim 14 (depends on 11)

The thermoplastic composition of claim 11, wherein Component B is characterized by core-shell morphology.

### Claim 15 (depends on 11)

The thermoplastic composition of claim 11, wherein Component B comprises an impact modifier capable of reaction with epoxy functionality that does not comprise epoxy functionality.

### Claim 16 (depends on 11)

The thermoplastic composition of claim 11, wherein Component B or Component C comprises acrylate rubber.

### Claim 17 (depends on 11)

The thermoplastic composition of claim 11, wherein the functional shell polymer of Component C is epoxy functionality.

### Claim 18 (depends on 11)

The thermoplastic composition of claim 11, wherein the epoxy functionality of Component C is glycidyl (meth)acrylate.

### Claim 19 (depends on 10)

The thermoplastic composition of claim 10, wherein the agglomerations comprises particles having a diameter between 0.4 and 4.0 microns.

### Claim 20

A molded part comprising:
a thermoplastic resin; and
agglomerations of particles;
wherein at least 50% of the agglomerations comprise open spaces that measure 31 to 60% by area of the agglomeration,
and wherein the agglomerations of particles comprise particles characterized by core-shell morphology.