# US 11,078,353 B2 · Thermoplastic polyolefin compositions useful for aldehyde abatement

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- Number: US 11,078,353 B2
- Document ID: US11078353B2
- Status: Granted
- Kind: B2
- Application number: 16/617,397
- Filed: 2018-05-22
- Published: 2020-05-21
- Granted: 2021-08-03
- Earliest claimed: 2017-05-29
- Assignees: Dow Global Technologies LLC
- Applicants: Dow Global Technologies LLC
- Inventors: Yahong Zhang; Jian Zou; Shaoguang Feng
- Web page: https://patentgrep.com/patent/US11078353B2

## CPC

- C08L 23/14: Copolymers of propene (C08L23/16 takes precedence)
- C08K 5/07: Aldehydes; Ketones
- C08K 5/103: with polyalcohols
- C08L 23/12: Polypropene
- C08L 23/16: Ethylene-propylene or ethylene-propylene-diene copolymers
- 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: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)
- C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09)

## Abstract

The present disclosure provides a composition comprising: (A) a polypropylene polymer; (B) a polyolefin elastomer; (C) a polyacetoacetate compound having the Formula (I); and (D) an additive component. The present disclosure also provides an article made from the composition.

## Claims

### Claim 1

A composition comprising:
(A) a polypropylene polymer;
(B) a polyolefin elastomer;
(C) a polyacetoacetate compound; and
(D) an additive component;
wherein the polyacetoacetate compound has the Formula (I):
wherein
A is a polymer backbone, a C1-C30 substituted or unsubstituted linear or branched alkyl, aryl, arylalkyl, or alkaryl group, wherein the substituents may be one or more O, N, S, halogen, or phosphine;
R is a bond or a C1-C30 linear or branched alkyl, aryl, arylalkyl, or alkaryl group;
R1 is a substituted or unsubstituted C1-C6 alkyl or a substituted or unsubstituted aryl group; and
n is 2 to 100.

### Claim 2

A composition comprising:
(A) from 50 wt % to 85 wt % of a polypropylene polymer;
(B) from 5 wt % to 35 wt % of a polyolefin elastomer;
(C) from 0.01 wt % to 10 wt % of a polyacetoacetate compound; and
(D) from 0 wt % to 30 wt % of an additive component;
wherein the polyacetoacetate compound has the Formula (I):
wherein
A is a polymer backbone, a C1-C30 substituted or unsubstituted linear or branched alkyl, aryl, arylalkyl, or alkaryl group, wherein the substituents may be one or more O, N, S, halogen, or phosphine;
R is a bond or a C1-C30 linear or branched alkyl, aryl, arylalkyl, or alkaryl group;
R1 is a substituted or unsubstituted C1-C6 alkyl or a substituted or unsubstituted aryl group; and
n is 2 to 100.

### Claim 3 (depends on 1)

The composition of claim 1, wherein R is a C1 alkyl group or a substituted or unsubstituted ether moiety.

### Claim 4 (depends on 1)

The composition of claim 1, wherein R1 is a C1 or C2 alkyl group.

### Claim 5 (depends on 1)

The composition of claim 1, wherein n is 2 to 20.

### Claim 6 (depends on 1)

The composition of claim 1, wherein the polyacetoacetate compound is selected from the group consisting of the following:

### Claim 7 (depends on 1)

The composition of claim 1, wherein the polyolefin elastomer is an ethylene/α-olefin copolymer.

### Claim 8 (depends on 1)

The composition of claim 1 comprising less than 0.01 mg/m3 formaldehyde, as measured in accordance with the VOC Test Method.

### Claim 9 (depends on 1)

The composition of claim 1 comprising less than 0.10 mg/m3 acetaldehyde, as measured in accordance with the VOC Test Method.

### Claim 10 (depends on 1)

The composition of claim 1 comprising less than or equal to 0.10 mg/m3 propionaldehyde, as measured in accordance with the VOC Test Method.

### Claim 11 (depends on 1)

The composition of claim 1 comprising:
less than 0.01 mg/m3 formaldehyde, as measured in accordance with the VOC Test Method;
less than 0.10 mg/m3 acetaldehyde, as measured in accordance with the VOC Test Method;
less than 0.01 mg/m3 acrolein, as measured in accordance with the VOC Test Method;
less than or equal to 0.10 mg/m3 propionaldehyde, as measured in accordance with the VOC Test Method; and
less than 0.01 mg/m3 crotonaldehyde, as measured in accordance with the VOC Test Method.

### Claim 12 (depends on 1)

The composition of claim 1 comprising:
a flexural modulus and tensile modulus of greater than 1700 MPa;
a flexural yield strength of greater than 30 MPa; and
a tensile yield strength of greater than 20 MPa.

### Claim 13 (depends on 1)

The composition of claim 1 comprising:
an impact strength at 23° C. of greater than 31 kJ/m2; and
an impact strength at −30° C. of greater than 4.20 kJ/m2.

### Claim 14 (depends on 1)

An article made from the composition of claim 1.

### Claim 15 (depends on 14)

The article of claim 14 in the form of an automobile interior part.