US2541550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blend of isoolefin-diolefin and polychloroprene synthetic rubbers for adhering isoolefin-diolefin rubber to other materials
Assignee: Goodrich Corp
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Filing: 1949-01-03
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Granted: 1951-02-13
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Expires: 1969-01-03
Abstract
No abstract record available.
Inventors
- 👤 Donald V Sarbach
- 👤 George P Loomis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:18
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/04; C08J5/06; C09; C09J; C09J111/00; C09J123/00; C09J123/02; C09J123/18; C09J123/20; C09J123/22; C08J2321/00; C08L; C08L2666/00; C08L2666/02; C08L2666/04; C08L2666/06; Y; Y10; Y10S; Y10S152/00; Y10S152/16; Y10S156/00; Y10S156/91; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31826; Y10T428/31833
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
123 words
A FLEXIBLE, VULCANIZABLE, COMPOSITE STRUCTURE COMPRISING A LAYER OF CRUDE RUBBER; A LAYER COMPRISING A RUBBERY COPOLYMER OF A MAJOR PROPORTION OF AN ISOOLEFIN HAVING FROM 4 TO 5 CARBON ATOMS WITH A MINOR PROPORTIONS OF AN OPEN-CHAIN CONJUGATED DIOLEFIN HAVING FROM 4 TO 6 CARBON ATOMS; AND AN INTERPOSED LAYER OF A SOLID, FLEXIBLE ADHESIVE IN DIRECT ADHERING CONTACT WITH EACH OF THE AFORESAID LAYERS COMPRISING FROM 80 TO 20 PARTS BY WEIGHT OF A RUBBERY COPOLYMER OF A MAJOR PROPORTION OF AN ISOOLEFIN HAVING FROM 4 TO 7 CARBON ATOMS WITH A MINOR PROPORTION OF AN OPEN-CHAIN CONJUGATED DIOLEFIN HAVING FROM 4 TO 8 CARBON ATOMS, AND FROM 20 TO 80 PARTS BY WEIGHT OF A RUBBERY POLYMER OF A CHLOROBUTADIENE-1,3.
Claim 2
Dependent Claim
123 words
A FLEXIBLE, VULCANIZABLE, COMPOSITE STRUCTURE COMPRISING A LAYER OF CRUDE RUBBER; A LAYER COMPRISING A RUBBERY COPOLYMER OF A MAJOR PROPORTION OF AN ISOOLEFIN HAVING FROM 4 TO 5 CARBON ATOMS WITH A MINOR PROPORTIONS OF AN OPEN-CHAIN CONJUGATED DIOLEFIN HAVING FROM 4 TO 6 CARBON ATOMS; AND AN INTERPOSED LAYER OF A SOLID, FLEXIBLE ADHESIVE IN DIRECT ADHERING CONTACT WITH EACH OF THE AFORESAID LAYERS COMPRISING FROM 80 TO 20 PARTS BY WEIGHT OF A RUBBERY COPOLYMER OF A MAJOR PROPORTION OF AN ISOOLEFIN HAVING FROM 4 TO 7 CARBON ATOMS WITH A MINOR PROPORTION OF AN OPEN-CHAIN CONJUGATED DIOLEFIN HAVING FROM 4 TO 8 CARBON ATOMS, AND FROM 20 TO 80 PARTS BY WEIGHT OF A RUBBERY POLYMER OF A CHLOROBUTADIENE-1,3.
Claim 3
Independent Claim
91 words
A METHOD OF ADHERING A RUBBERY COPOLYMER OF A MAJOR PROPORTION OF AN ISOOLFEIN HAVING FROM 4 TO 7 CARBON ATOMS WITH A MINOR PROPORTION OF AN OPEN-CHAIN CONJUATED DIOLFIN HAVING FROM 4 TO 8 CARBON ATOMS TO AN UNVULCANIZED RUBBER COMPRISING INTERPOSING BETWEEN AND IN DIRECT CONTACT WITH LAYERS OF SAID RUBBERY COPOLYMER AND SAID RUBBER A PREFORMED, SOLID LAYER OF A VULCANIZABLE ADHESIVE COMPOSITION WHICH COMPRISES SUBSTANTIALLY EQUAL PARTS OF SAID RUBBERY COPOLYMER AND A POLYMER OF A CHLOROBUTADIENE-1,3; AND HEATING THE COMPOSITE PRODUCT TO VULCANIZE THE VULCANIZABLE CONSTITUENTS.
Claim 4
Independent Claim
91 words
A METHOD OF ADHERING A RUBBERY COPOLYMER OF A MAJOR PROPORTION OF AN ISOOLFEIN HAVING FROM 4 TO 7 CARBON ATOMS WITH A MINOR PROPORTION OF AN OPEN-CHAIN CONJUATED DIOLFIN HAVING FROM 4 TO 8 CARBON ATOMS TO AN UNVULCANIZED RUBBER COMPRISING INTERPOSING BETWEEN AND IN DIRECT CONTACT WITH LAYERS OF SAID RUBBERY COPOLYMER AND SAID RUBBER A PREFORMED, SOLID LAYER OF A VULCANIZABLE ADHESIVE COMPOSITION WHICH COMPRISES SUBSTANTIALLY EQUAL PARTS OF SAID RUBBERY COPOLYMER AND A POLYMER OF A CHLOROBUTADIENE-1,3; AND HEATING THE COMPOSITE PRODUCT TO VULCANIZE THE VULCANIZABLE CONSTITUENTS.
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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) | 1954-02-12 | 1954-08-14 | 1955-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-12 | 1958-08-14 | 1959-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-12 | 1962-08-14 | 1963-02-13 | $7700.00 | Window Closed / Lapsed |