Method for coating zinc die-cast parts, multi-layered coating for the protection of zinc die-cast parts, and coated zinc die-cast part
US-2024254631-A1 · Aug 1, 2024 · US
Nitrile rubber-metal laminated gasket material
US2016195188A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016195188-A1 |
| Application number | US-201414910963-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jun 11, 2014 |
| Priority date | Aug 9, 2013 |
| Publication date | Jul 7, 2016 |
| Grant date | — |
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- Title
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Abstract
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A nitrile rubber-metal laminated gasket material comprising a surface-treating agent layer, an adhesive layer, and a rubber layer, which are sequentially laminated on a metal plate, wherein the surface-treating agent layer is formed using a surface-treating agent that is free from chromium and comprises of (A) a urethane resin or phenolic resin, (B) a silicon-containing compound, and (C) a fluorine-free zirconium compound or fluorine-free titanium compound as essential components. The nitrile rubber-metal laminated gasket material has excellent LLC resistance and oil resistance under high temperature, although it uses a surface-treating agent for metal, which is free from chromium and fluorine.
First claim
Opening claim text (preview).
1 . A nitrile rubber-metal laminated gasket material comprising a surface-treating agent layer, an adhesive layer, and a rubber layer, which are sequentially laminated on a metal plate, wherein the surface-treating agent layer is formed using a surface-treating agent that is free from chromium and comprises of (A) a urethane resin or phenolic resin, (B) a silicon-containing compound, and (C) a fluorine-free zirconium compound or fluorine-free titanium compound as essential components. 2 . The nitrile rubber-metal laminated gasket material according to claim 1 , which uses a surface-treating agent in which, based on the total amount of the urethane resin or phenolic resin as component (A) and the silicon-containing compound as component (B), the ratio of component (A) is 45 to 90 wt. %, and the ratio of component (B) is 55 to 10 wt. %. 3 . The nitrile rubber-metal laminated gasket material according to claim 1 , which uses a surface-treating agent in which the amount of the fluorine-free zirconium compound or fluorine-free titanium compound as component (C) is 0.2 to 8.0 times in terms of weight as much as the total amount of the urethane resin or phenolic resin as component (A) and the silicon-containing compound as component (B). 4 . The nitrile rubber-metal laminated gasket material according to claim 1 , wherein the silicon-containing compound as component (B) is a silane coupling agent or colloidal silica. 5 . The nitrile rubber-metal laminated gasket material according to claim 1 , wherein the metal plate is subjected to surface roughening treatment and alkaline degreasing treatment. 6 . The nitrile rubber-metal laminated gasket material according to claim 1 , which is used as an engine cylinder head gasket. 7 . An engine cylinder head gasket comprising the nitrile rubber-metal laminated gasket material according to claim 6 . 8 . The nitrile rubber-metal laminated gasket material according to claim 2 , which is used as an engine cylinder head gasket. 9 . The nitrile rubber-metal laminated gasket material according to claim 3 , which is used as an engine cylinder head gasket. 10 . The nitrile rubber-metal laminated gasket material according to claim 4 , which is used as an engine cylinder head gasket. 11 . The nitrile rubber-metal laminated gasket material according to claim 5 , which is used as an engine cylinder head gasket. 12 . An engine cylinder head gasket comprising the nitrile rubber-metal laminated gasket material according to claim 8 . 13 . An engine cylinder head gasket comprising the nitrile rubber-metal laminated gasket material according to claim 9 . 14 . An engine cylinder head gasket comprising the nitrile rubber-metal laminated gasket material according to claim 10 . 15 . An engine cylinder head gasket comprising the nitrile rubber-metal laminated gasket material according to claim 11 .
Assignees
Inventors
Classifications
- C23C22/34Primary
containing fluorides or complex fluorides · CPC title
on synthetic resin layer or on natural or synthetic rubber layer · CPC title
laminated · CPC title
characterised by the use of special additives · CPC title
comprising polyurethanes · CPC title
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- What does patent US2016195188A1 cover?
- A nitrile rubber-metal laminated gasket material comprising a surface-treating agent layer, an adhesive layer, and a rubber layer, which are sequentially laminated on a metal plate, wherein the surface-treating agent layer is formed using a surface-treating agent that is free from chromium and comprises of (A) a urethane resin or phenolic resin, (B) a silicon-containing compound, and (C) a fluo…
- Who is the assignee on this patent?
- Nok Corp
- What technology area does this patent fall under?
- Primary CPC classification C23C22/34. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Jul 07 2016 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).