US2754239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cement for adhesion of isobutylenediolefin polymers to fibers
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1952-10-01
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Granted: 1956-07-10
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Expires: 1972-10-01
Abstract
No abstract record available.
Inventors
- 👤 Samuel B Robison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:07
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/04; C08J5/06; C08J2323/00; C08J2323/02; C08J2323/18; C08J2323/20; C08J2323/22; Y; Y10; Y10S; Y10S156/00; Y10S156/91; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31884; Y10T428/31888; Y10T428/31942; Y10T428/31949; Y10T428/31953; Y10T442/00; Y10T442/20; Y10T442/2738
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
A FABRIC TREATED WITH A VOLATILE HYDROCARBON LIQUID CEMENT OF AN ISOBUTYLENE-DIOLEFIN COPOLYMER AND HAVING INCORPORATED THEREIN FROM 1 PARTS OF RESORCINOL AND FROM 1 PART TO 20 PARTS OF PARAFORMALDEHYDE PER 100 PARTS BY WEIGHT OF THE COPOLYMER.
Claim 2
Independent Claim
83 words
A METHOD FOR IMPROVING THE ADHESION OF TIRE CORDS TO ISOBUTYLENE ISOPRENE COPOLYMERS, WHICH COMPRISES THE STEPS OF PREPARING A VOLATILE HYDROCARBON LIQUID CEMENT CONTAINING AN ISOBUTYLENE-SIOPRENE SYNTHETIC RUBBER AND NOT MORE THAN ABOUT 40 WT.% BASED ON THE RUBBER OF APPROXIMATELY EQUAL PROPORTIONS OF RESORCINOL AND PARAFORMALDEHYDE, CONTACTING SAID TIRE CORDS WITH SAID CEMENT, AND FORMING AN IMPROVED BOND BETWEEN THE THUS TREATED TIRE CORDS AND IN ISOOLEFIN-DIOLEFIN RUBBERY COPOLYMER BY CURING THE RUBBER, RESORCINOL-PARAFORMALDEHYDE, AND COPOLYMER IN A SINGLE CURING STEP.
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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) | 1959-07-10 | 1960-01-09 | 1960-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-10 | 1964-01-09 | 1964-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-10 | 1968-01-09 | 1968-07-10 | $7700.00 | Window Closed / Lapsed |