Patent US2902398A successfully refreshed from Google Patents.
US2902398A
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Process for treating fibrous materials to improve adhesion to rubber and resulting products
Assignee: Shell Development Co
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Filing: 1956-06-18
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Granted: 1959-09-01
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Expires: 1976-06-18
Abstract
No abstract record available.
Inventors
- 👤 Carl W Schroeder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:01
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/04; C08J5/06; D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/55; C08J2321/00; Y; Y10; Y10S; Y10S156/00; Y10S156/91; Y10S8/00; Y10S8/08; Y10S8/21; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31515; Y10T428/31826
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A PROCESS FOR PREPARING A COMPOSITE PRODUCT WHEREIN FIBROUS MATERIAL AND RUBBER ARE COMBINED IN ADHERING RELATIONSHIP WHICH COMPRISES PADDING FIBROUS MATERIAL WITH AN AQUEOUS MEDIUM CONTAINING A POLYEPOXIDE HAVING AN EPOXY EQUIVALENCY PER 100 GRAMS GREATER THAN 0.20, AN EPOXY CURING AGEN, DRYING THE TREATED FIBROUS MATERIAL THEN PADDING THE RESULTING FIBROUS MATERIAL WITH A LIQUID MEDIUM CONTAINING A RUBBER, DRYING THE TREATED MATERIAL, AND THEN APPLYING RUBBER STOCK TO THE SO TREATED FIBROUS MATERIAL AND VULCANIZING THE PRODUCT.
Claim 2
Dependent Claim
80 words
A PROCESS FOR PREPARING A COMPOSITE PRODUCT WHEREIN FIBROUS MATERIAL AND RUBBER ARE COMBINED IN ADHERING RELATIONSHIP WHICH COMPRISES PADDING FIBROUS MATERIAL WITH AN AQUEOUS MEDIUM CONTAINING A POLYEPOXIDE HAVING AN EPOXY EQUIVALENCY PER 100 GRAMS GREATER THAN 0.20, AN EPOXY CURING AGEN, DRYING THE TREATED FIBROUS MATERIAL THEN PADDING THE RESULTING FIBROUS MATERIAL WITH A LIQUID MEDIUM CONTAINING A RUBBER, DRYING THE TREATED MATERIAL, AND THEN APPLYING RUBBER STOCK TO THE SO TREATED FIBROUS MATERIAL AND VULCANIZING THE PRODUCT.
References Cited (Backward Citations)
CA513647A
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US2314996A
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US2373613A
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US2354426A
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US2439514A
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US2615008A
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US2570895A
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US2706166A
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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) | 1962-08-31 | 1963-03-02 | 1963-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-31 | 1967-03-02 | 1967-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-31 | 1971-03-02 | 1971-09-01 | $7700.00 | Window Closed / Lapsed |