US3961740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for forming a composite of a metallic material and vulcanized rubber
Assignee: Bridgestone Corp
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Filing: 1974-03-04
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Granted: 1976-06-08
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Expires: 1994-03-04
Abstract
Abstract A composite of a metallic material and vulcanized rubber is produced by contacting an unvulcanized rubber with a metallic material coated with a ternary alloy composed of copper, zinc and tin.
Inventors
- 👤 Yuzuru Nakamoto
- 👤 Eishi Kubota
- 👤 Fukushi Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:05
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/04; B32B15/06; B32B25/00; B32B25/12; B60; B60C; B60C9/00; B60C9/0007; C; C08; C08J; C08J5/00; C08J5/12; D; D07; D07B; D07B1/00; D07B1/06; D07B1/0606; D07B1/0666; B32B2255/00; B32B2255/06; B32B2255/20; B32B2255/205; B32B2305/00; B32B2305/72; B32B2311/00; B32B2311/12; B32B2311/16; B32B2311/20; B32B2605/00; C08J2321/00; D07B2205/00; D07B2205/30; D07B2205/3021; D07B2205/3085; D07B2205/3089; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12556; Y10T428/12562; Y10T428/12771; Y10T428/12861; Y10T428/12903; Y10T428/12917; Y10T428/12924
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
70 words
A process for producing a composite product which is a metallic base and a vulcanized rubber with an intermediate adhesive layer which is a ternary alloy composed of 59 to 73% by weight copper, 23 to 34% by weight zinc and 2 to 13% by weight tin, said process comprising coating a metallic substrate with said ternary alloy, coating resulting product with an unvulcanized rubber and thereafter vulcanizing said rubber.
Claim 2
Dependent Claim
70 words
A process for producing a composite product which is a metallic base and a vulcanized rubber with an intermediate adhesive layer which is a ternary alloy composed of 59 to 73% by weight copper, 23 to 34% by weight zinc and 2 to 13% by weight tin, said process comprising coating a metallic substrate with said ternary alloy, coating resulting product with an unvulcanized rubber and thereafter vulcanizing said rubber.
Claim 3
Dependent Claim
30 words
A process as in claim 1 wherein the ternary alloy contains 60.9 to 66.6% by weight copper, 26.1 to 28.6% by weight zinc and 4.8 to 13% by weight tin.
Claim 4
Dependent Claim
50 words
A process as in claim 1 wherein the composition ratio of the ternary alloy is such that the weight ratio of copper to zinc is from 70:30 to 65:35, and the weight ratio of the total content of copper and zinc to that of tin is from 100:3 to 100:10.
Claim 5
Dependent Claim
19 words
A process as in claim 1 wherein a cobalt salt of an organic acid is incorporated into the rubber.
References Cited (Backward Citations)
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US2050202A
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US2746135A
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US2563113A
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US2643273A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-08 | 1979-12-08 | 1980-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-08 | 1983-12-08 | 1984-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-08 | 1987-12-08 | 1988-06-08 | $7700.00 | Window Closed / Lapsed |