Chloroprene rubber composition, vulcanized molded article, and anti-vibration rubber
US-2017292014-A1 · Oct 12, 2017 · US
Chloroprene/unsaturated nitrile copolymer composition and vulcanized molded object
US2022010097A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2022010097-A1 |
| Application number | US-201917291367-A |
| Country | US |
| Kind code | A1 |
| Filing date | Nov 6, 2019 |
| Priority date | Nov 8, 2018 |
| Publication date | Jan 13, 2022 |
| Grant date | — |
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Abstract
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A chloroprene-unsaturated nitrile copolymer composition containing 100 parts by mass of a chloroprene-unsaturated nitrile copolymer having 3 to 20% by mass of a structural unit derived from an unsaturated nitrile monomer, and 0.05 to 2.0 parts by mass of a xanthogen compound.
First claim
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1 . A chloroprene-unsaturated nitrile copolymer composition comprising 100 parts by mass of a chloroprene-unsaturated nitrile copolymer comprising 3 to 20% by mass of a structural unit derived from an unsaturated nitrile monomer; and 0.05 to 2.0 parts by mass of a xanthogen compound. 2 . The chloroprene-unsaturated nitrile copolymer composition according to claim 1 , wherein the xanthogen compound comprises a compound represented by General Formula (1) below: wherein R 1 and R 2 each independently represent a hydrogen atom or an alkyl group having 1 to 8 carbon atoms. 3 . The chloroprene-unsaturated nitrile copolymer composition according to claim 1 , further comprising 0.5 to 5 parts by mass of a sulfur-based vulcanization accelerator with respect to 100 parts by mass of the chloroprene-unsaturated nitrile copolymer. 4 . The chloroprene-unsaturated nitrile copolymer composition according to claim 3 , wherein the sulfur-based vulcanization accelerator comprises at least one compound selected from 3-methylthiazolidine-2-thione, 1,1,3-trimethyl thiourea, and ethylene thiourea. 5 . A vulcanized molded article of the chloroprene-unsaturated nitrile copolymer composition according to claim 1 . 6 . A vulcanizate of the chloroprene-unsaturated nitrile copolymer composition according to claim 1 . 7 . The chloroprene-unsaturated nitrile copolymer composition according to claim 1 , wherein the chloroprene-unsaturated nitrile copolymer comprises a structural unit derived from acrylonitrile. 8 . The chloroprene-unsaturated nitrile copolymer composition according to claim 1 , wherein the chloroprene-unsaturated nitrile copolymer comprises 9 to 17% by mass of the structural unit derived from an unsaturated nitrile monomer. 9 . The chloroprene-unsaturated nitrile copolymer composition according to claim 1 , wherein an amount of a structural unit derived from a chloroprene monomer is 83 to 91% by mass on the basis of the total amount of the chloroprene-unsaturated nitrile copolymer. 10 . The chloroprene-unsaturated nitrile copolymer composition according to claim 1 , wherein the xanthogen compound comprises diethylxanthogen disulfide. 11 . The chloroprene-unsaturated nitrile copolymer composition according to claim 1 , wherein the xanthogen compound comprises diisopropylxanthogen disulfide. 12 . The chloroprene-unsaturated nitrile copolymer composition according to claim 1 , wherein a content of the xanthogen compound is 0.1 to 2.0 parts by mass with respect to 100 parts by mass of the chloroprene-unsaturated nitrile copolymer. 13 . The chloroprene-unsaturated nitrile copolymer composition according to claim 1 , wherein a content of the xanthogen compound is 0.3 to 1.0 parts by mass with respect to 100 parts by mass of the chloroprene-unsaturated nitrile copolymer. 14 . The chloroprene-unsaturated nitrile copolymer composition according to claim 3 , wherein the sulfur-based vulcanization accelerator comprises 3-methylthiazolidine-2-thione. 15 . The chloroprene-unsaturated nitrile copolymer composition according to claim 3 , wherein the sulfur-based vulcanization accelerator comprises 1,1,3-trimethyl thiourea. 16 . The chloroprene-unsaturated nitrile copolymer composition according to claim 3 , wherein the sulfur-based vulcanization accelerator comprises ethylene thiourea. 17 . The chloroprene-unsaturated nitrile copolymer composition according to claim 3 , wherein a content of the sulfur-based vulcanization accelerator is 0.75 to 3.0 parts by mass with respect to 100 parts by mass of the chloroprene-unsaturated nitrile copolymer. 18 . The chloroprene-unsaturated nitrile copolymer composition according to claim 3 , wherein a content of the sulfur-based vulcanization accelerator is 1.0 to 2.0 parts by mass with respect to 100 parts by mass of the chloroprene-unsaturated nitrile copolymer.
Assignees
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Classifications
Compositions of homopolymers or copolymers of chloroprene · CPC title
Copolymers with acrylonitrile · CPC title
with oxygen or nitrogen in the ring · CPC title
- C08F236/18Primary
containing chlorine · CPC title
containing halogen · CPC title
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Frequently asked questions
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- What does patent US2022010097A1 cover?
- A chloroprene-unsaturated nitrile copolymer composition containing 100 parts by mass of a chloroprene-unsaturated nitrile copolymer having 3 to 20% by mass of a structural unit derived from an unsaturated nitrile monomer, and 0.05 to 2.0 parts by mass of a xanthogen compound.
- Who is the assignee on this patent?
- Denka Company Ltd
- What technology area does this patent fall under?
- Primary CPC classification C08F236/18. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Jan 13 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).