# US 2016/0355665 A1 · Ester plasticizers based on renewable raw materials for elastomers

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- Number: US 2016/0355665 A1
- Document ID: US20160355665A1
- Status: Published application
- Kind: A1
- Application number: 15/027,934
- Filed: 2015-02-13
- Published: 2016-12-08
- Earliest claimed: 2015-02-13
- Assignees: Amril AG
- Applicants: Amril AG
- Inventors: Peter DAUTE; Sascha SIMON; Marcel KOCH
- Web page: https://patentgrep.com/patent/US20160355665A1

## CPC

- C08K 5/101: of monocarboxylic acids
- C08K 3/04: Carbon
- C08L 21/00: Compositions of unspecified rubbers
- C08L 23/16: Ethylene-propylene or ethylene-propylene-diene copolymers
- C08L 91/00: Compositions of oils, fats or waxes; Compositions of derivatives thereof
- C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09)
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)

## Abstract

The present invention relates to a composition comprising (a) an ester obtainable by reacting an unsaturated branched or saturated branched C8-C28 alcohol with an unsaturated linear or saturated linear C12-C22 fatty acid, and (b) an elastomer. Further aspects of the invention include the use of an ester as defined in (a) as plasticizer in an elastomer.

## Claims

### Claim 1

A composition comprising
(a) an ester obtainable by reacting
(i) an unsaturated branched or saturated branched aliphatic C8-C28 alcohol; with
(ii) an unsaturated linear or saturated linear C12-C22 fatty acid;
and
(b) an elastomer.

### Claim 2 (depends on 1)

The composition according to claim 1, wherein the alcohol in (i) is a saturated branched C10-C24 alcohol.

### Claim 3 (depends on 2)

The composition according to claim 2, wherein the alcohol in (i) is a saturated branched C13-C20 alcohol.

### Claim 4 (depends on 1)

The composition according to claim 1, wherein the fatty acid in (ii) is 20 a linear saturated fatty acid.

### Claim 5 (depends on 1)

The composition according to claim 1, wherein the elastomer has a molecular weight in the range of between 100000 Dalton and 5000000 Dalton.

### Claim 6 (depends on 1)

The composition according to claim 1, wherein the elastomer is selected from the group consisting of a butadiene polymer, an acrylonitrile-butadiene copolymer, an isoprene polymer, a polyamide, a nitrile butadiene rubber (NBR), a hydrogenated nitrile butadiene rubber (HNBR), a chloroprene rubber (CR), an FKM elastomer, an ethylene-propylene-diene monomer rubber (EPDM), a butadiene rubber (BR), a natural rubber (NR), a styrene-butadiene rubber (SBR), a diene rubber, a fluorocarbon elastomer, an acrylic elastomer, an ethylene acrylic elastomer, a silicone rubber, a polyurethane elastomer, an ethylene propylene elastomer and mixtures thereof.

### Claim 7 (depends on 1)

The composition according to claim 1, wherein the composition further comprises
(c) a filler selected from the group consisting of calcium carbonate, dolomite, kaolinite, carbon, zeolite, graphite, mica, borosilicate, silicon dioxide, cellulose, silicic acid, aluminiumhydroxide, magnesiumhydroxide, magnesiumoxide, zincoxide and calciumoxide, chalk, kaolin, quartz powder, barite, a metal powder, hydrated alumina, cement, talc, diatomaceous earth, sawdust, wood chips and a mixture of at least two of these fillers.

### Claim 8 (depends on 7)

The composition according to claim 7, wherein said filler has a mean particle size of between 1 nm to 1000 nm or between 1 micrometer and 500 micrometers.

### Claim 9 (depends on 8)

The composition according to claim 8, wherein said filler is comprised in said composition in an amount of 5-300 parts per hundred parts of elastomer by weight (phr) and preferably in an amount of 10-200 phr and most preferably in an amount of 15-150 phr.

### Claim 10 (depends on 8)

The composition according to claim 8, wherein the ester is comprised in said composition in an amount of 5-300 parts per hundred parts of elastomer by weight (phr) and preferably in an amount of 10-200 phr and most preferably in an amount of 15-150 phr.

### Claim 11 (depends on 8)

A use of an ester as defined in claim 8 as plasticizer in an elastomer.

### Claim 12 (depends on 7, 11)

The use according to claim 11, wherein said elastomer comprises a filler as defined in claim 7.

### Claim 13 (depends on 5, 11)

The use according to claim 11, wherein said elastomer is an elastomer as defined in claim 5.

### Claim 14 (depends on 11)

The use according to claim 11, wherein said alcohol in (i) and/or said fatty acid in (ii) are derived to 100% from renewable resources.