Rubber-reinforcing cord and rubber product including same
US-10913830-B2 · Feb 9, 2021 · US
Rubber-reinforcing cord and rubber product including same
US11560671B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11560671-B2 |
| Application number | US-201816619755-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 8, 2018 |
| Priority date | Jun 19, 2017 |
| Publication date | Jan 24, 2023 |
| Grant date | Jan 24, 2023 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A rubber-reinforcing cord ( 12 ) of the present invention includes at least one strand. The strand includes at least one filament bundle and a coating provided to cover at least a portion of a surface of the filament bundle. The coating includes a rubber component including at least one selected from the group consisting of carboxyl-modified nitrile rubber and carboxyl-modified hydrogenated nitrile rubber, an isocyanate compound, a bismaleimide compound, carbon black, and a rubber-modified epoxy resin. In the coating, the content of the isocyanate compound is 10 to 50 parts by mass, the content of the bismaleimide compound is 5 to 25 parts by mass, the content of the carbon black is 2 to 18 parts by mass, and the content of the rubber-modified epoxy resin is 5 to 30 parts by mass, with respect to 100 parts by mass of the rubber component.
First claim
Opening claim text (preview).
The invention claimed is: 1. A rubber-reinforcing cord for reinforcing a rubber product, the rubber-reinforcing cord comprising: at least one strand, wherein the at least one strand comprises at least one filament bundle and a coating provided to cover at least a portion of a surface of the at least one filament bundle, the coating comprises a rubber component comprising at least one selected from the group consisting of carboxyl-modified nitrile rubber and carboxyl-modified hydrogenated nitrile rubber, an isocyanate compound, a bismaleimide compound, carbon black, and a rubber-modified epoxy resin, and in the coating, the content of the isocyanate compound is 10 to 50 parts by mass, the content of the bismaleimide compound is 5 to 25 parts by mass, the content of the carbon black is 2 to 18 parts by mass, and the content of the rubber-modified epoxy resin is 5 to 30 parts by mass, with respect to 100 parts by mass of the rubber component. 2. The rubber-reinforcing cord according to claim 1 , wherein the rubber-modified epoxy resin is a nitrile rubber-modified epoxy resin. 3. The rubber-reinforcing cord according to claim 1 , comprising no other coating than the coating. 4. The rubber-reinforcing cord according to claim 1 , wherein the total content of the isocyanate compound, the bismaleimide compound, the carbon black, and the rubber-modified epoxy resin is 100 parts by mass or less with respect to 100 parts by mass of the rubber component. 5. The rubber-reinforcing cord according to claim 1 , wherein the coating is free of a resorcinol-formaldehyde condensate. 6. A rubber product reinforced by the rubber-reinforcing cord according to claim 1 . 7. The rubber product according to claim 6 , being a rubber belt comprising matrix rubber and the rubber-reinforcing cord embedded in the matrix rubber. 8. The rubber product according to claim 7 , wherein the matrix rubber comprises hydrogenated nitrile rubber.
Assignees
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Classifications
- F16G1/10Primary
with textile reinforcement · CPC title
Power transmissions · CPC title
being of synthetic nature, e.g. chloroprene · CPC title
being of the coated type · CPC title
characterised by the materials used · CPC title
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Frequently asked questions
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- What does patent US11560671B2 cover?
- A rubber-reinforcing cord ( 12 ) of the present invention includes at least one strand. The strand includes at least one filament bundle and a coating provided to cover at least a portion of a surface of the filament bundle. The coating includes a rubber component including at least one selected from the group consisting of carboxyl-modified nitrile rubber and carboxyl-modified hydrogenated nit…
- Who is the assignee on this patent?
- Nippon Sheet Glass Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification F16G1/10. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Jan 24 2023 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).