Patent US3614314A successfully refreshed from Google Patents.
US2649425A
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Adhesive containing a butadiene styrene copolymer
Assignee: Hercules Powder Co
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Filing: 1948-11-24
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Granted: 1953-08-18
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Expires: 1968-11-24
Abstract
No abstract record available.
Inventors
- 👤 George E Hulse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:23
CPC Classifications
C; C09; C09J; C09J109/00; C09J7/00; C09J7/30; C09J7/38; C09J7/381; C09J7/383; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31696; Y10T428/31855; Y10T428/3188; Y10T428/31884; Y10T428/31888; Y10T428/31895; Y10T428/31899; Y10T442/00; Y10T442/20; Y10T442/2738; Y10T442/2754
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A PRESSURE-SENSITIVE ADHESIVE COMPRISING A SOLVENT-SOLUBLE BUTADIENE-STYRENE COPOLYMER HAVING PROPORTIONS BETWEEN ABOUT 30% BUTADIENE TO ABOUT 70%STYRENE AND ABOUT 95% BUTADIENE TO ABOUT 5% STYRENE AND HAVING A MOONEY VISCOSITY ABOVE 145, BLENDED WITH A TACKIFYING AGENT SAID COPOLYMER HAVING BEEN PREPARED AT A POLYMERIZATION TEMPERATURE OF BETWEEN ABOUT -30* C. AND ABOUT 20* C. USING AN A,A-DIALKYLARYLMETHYL HYDROPEROXIDE CATALYST AND AN INORGANIC REDUCING AGENT ACTIVATOR.
Claim 2
Dependent Claim
66 words
A PRESSURE-SENSITIVE ADHESIVE COMPRISING A SOLVENT-SOLUBLE BUTADIENE-STYRENE COPOLYMER HAVING PROPORTIONS BETWEEN ABOUT 30% BUTADIENE TO ABOUT 70%STYRENE AND ABOUT 95% BUTADIENE TO ABOUT 5% STYRENE AND HAVING A MOONEY VISCOSITY ABOVE 145, BLENDED WITH A TACKIFYING AGENT SAID COPOLYMER HAVING BEEN PREPARED AT A POLYMERIZATION TEMPERATURE OF BETWEEN ABOUT -30* C. AND ABOUT 20* C. USING AN A,A-DIALKYLARYLMETHYL HYDROPEROXIDE CATALYST AND AN INORGANIC REDUCING AGENT ACTIVATOR.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-17 | 1957-02-16 | 1957-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-17 | 1961-02-16 | 1961-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-17 | 1965-02-16 | 1965-08-18 | $7700.00 | Window Closed / Lapsed |