Nitrile rubber composition and cross-linked rubber
US-2018030190-A1 · Feb 1, 2018 · US
Cross-linkable rubber composition, rubber crosslinked product, and complex
US10865293B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10865293-B2 |
| Application number | US-201716342827-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 24, 2017 |
| Priority date | Oct 31, 2016 |
| Publication date | Dec 15, 2020 |
| Grant date | Dec 15, 2020 |
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- Title
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- Abstract
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Abstract
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A disclosed crosslinkable rubber composition includes a carboxyl group-containing nitrile rubber (A) containing a halogen or a halogen compound, and having an iodine value of 120 or less; a polyamine-based crosslinking agent (B); and a metal-based acid acceptor (C).
First claim
Opening claim text (preview).
The invention claimed is: 1. A crosslinkable rubber composition comprising: a carboxyl group-containing nitrile rubber (A) containing a residual halogen or a halogen compound derived from a coagulant, the carboxyl group-containing nitrile rubber (A) having an iodine value of 120 or less; a polyamine-based crosslinking agent (B); and a metal-based acid acceptor (C) selected from aluminum hydroxide and hydrotalcite. 2. The crosslinkable rubber composition according to claim 1 , wherein: the carboxyl group-containing nitrile rubber (A) includes, based on 100 wt % of total monomer units in the carboxyl group-containing nitrile rubber (A): 5 to 60 wt % of α,β-ethylenically unsaturated nitrile monomer unit (a1), 0.5 to 12 wt % of α,β-ethylenically unsaturated dicarboxylic acid monoester monomer unit (a2), and 20 to 90 wt % of conjugated diene monomer unit (a3), and at least a part of the conjugated diene monomer unit (a3) is hydrogenated. 3. The crosslinkable rubber composition according to claim 1 , wherein the content of the metal-based acid acceptor (C) is 0.1 to 20 parts by weight with respect to 100 parts by weight of the carboxyl group-containing nitrile rubber (A). 4. The crosslinkable rubber composition according to claim 1 , wherein the content of the metal-based acid acceptor (C) is 1 to 5 parts by weight with respect to 100 parts by weight of the carboxyl group-containing nitrile rubber (A). 5. A rubber crosslinked product prepared by crosslinking the crosslinkable rubber composition according to claim 1 . 6. A complex comprising the rubber crosslinked product according to claim 5 complexed with metal.
Assignees
Inventors
Classifications
Hydrogenated nitrile rubber · CPC title
Copolymers with acrylonitrile · CPC title
Alkali metal carbonates · CPC title
of aluminium · CPC title
of metals · CPC title
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Frequently asked questions
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- What does patent US10865293B2 cover?
- A disclosed crosslinkable rubber composition includes a carboxyl group-containing nitrile rubber (A) containing a halogen or a halogen compound, and having an iodine value of 120 or less; a polyamine-based crosslinking agent (B); and a metal-based acid acceptor (C).
- Who is the assignee on this patent?
- Zeon Corp
- What technology area does this patent fall under?
- Primary CPC classification C08L13/00. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Dec 15 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).