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Rubber composition, method for manufacturing rubber-metal composite body, rubber-metal composite body, tire, industrial belt, and rubber crawler
US9708464B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9708464-B2 |
| Application number | US-201314386420-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 22, 2013 |
| Priority date | Mar 23, 2012 |
| Publication date | Jul 18, 2017 |
| Grant date | Jul 18, 2017 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A rubber-metal composite body constituted of a rubber composition and a metal material embedded therein is conventionally used in a rubber article requiring high strength in order to reinforce rubber to improve strength and durability thereof. The present invention provides a rubber composition having good initial adhesive properties and good heat resistant adhesive properties with respect to a metal material, mainly for use in the rubber-metal composite body as described above. Specifically, the present invention provides a rubber composition, containing a cobalt compound by an amount, according to cobalt atoms, in the range of 0.0025 to 0.05 parts by mass with respect to 100 parts by mass of a rubber component.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for manufacturing a rubber-metal composite body, comprising: a surface treatment process comprising bringing a metal material into contact with a buffer solution for 0.5 second to 20 seconds, the buffer solution being free of cobalt and substantially free of transition metals; and a bonding process comprising bonding the metal material subjected to the surface treatment process to a rubber composition containing a cobalt compound in an amount, according to cobalt atoms, in the range of 0.0025 to 0.025 parts by mass with respect to 100 parts by mass of a rubber component and containing no nickel and molybdenum. 2. The method for manufacturing a rubber-metal composite body of claim 1 , wherein the pH of the buffer solution is set to be in the range of 5.0 to 7.2. 3. The method for manufacturing a rubber-metal composite body of claim 1 , wherein the buffer solution contains at least one type of acid selected from acids each having an acid dissociation constant (pKa) in the range of 4 to 8.
Assignees
Inventors
Classifications
- C08K5/098Primary
Metal salts of carboxylic acids · CPC title
with all layers existing as coherent layers before laminating · CPC title
of continuously flexible type, e.g. rubber belts · CPC title
Other operations not otherwise provided for · CPC title
Compositions of unspecified rubbers · CPC title
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Frequently asked questions
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- What does patent US9708464B2 cover?
- A rubber-metal composite body constituted of a rubber composition and a metal material embedded therein is conventionally used in a rubber article requiring high strength in order to reinforce rubber to improve strength and durability thereof. The present invention provides a rubber composition having good initial adhesive properties and good heat resistant adhesive properties with respect to a…
- Who is the assignee on this patent?
- Bridgestone Corp
- What technology area does this patent fall under?
- Primary CPC classification C08K5/098. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jul 18 2017 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).