US3784587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesive composition containing an a-b-a block copolymer,poly alpha-methyl styrene and a tackifying resin
Assignee: Goodyear Tire and Rubber Co
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Filing: 1972-07-31
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Granted: 1974-01-08
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Expires: 1992-07-31
Abstract
Abstract A PRESSURE-SENSITIVE ADHESIVE COMPOSITION SUITABLE FOR APPLICATION AS A HOT MELT, WITHOUT A SOLVENT, WHICH COMPRISES A MIXTURE OF (A) AN UNVULCANIZED ELASTOMERIC BLOCK COPOLYMER HAVING THE GERENAR CONFIGURATION A-B-A, WHERE A IS A NON-ELASTOMERIC STYRENE POLYMER BLOCK AND B IS AN ELASTOMERIC DIENE POLYMER BLOCK SELECTED FROM ISOPRENE AND 1,3-BUTADIENE, (B) A COMPATIBLE THERMOPLASTIC TACKIFYING RESIN CONTAINING CARBON-TO-CARBON UNSATURATION AND DERIVED FROM HYDROCARBONS HAVING 5 TO 8 CARBON ATOMS AND (C) A POLY(A-METHYLSTYRENE) CHARACTERISTICALLY HAVING A VISCOSITU AT 60* C. IN THE RANGE OF ABOUT 100 TO ABOUT 900 CENTIPOISES.
Inventors
- 👤 T Chambers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:54
CPC Classifications
C; C09; C09J; C09J153/00; C09J153/02; C09J123/00; C09J123/02; C09J123/18; C09J123/20; C09J157/00; C09J157/02; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/04; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31931
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-07 | 1977-07-09 | 1978-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-07 | 1981-07-09 | 1982-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-07 | 1985-07-09 | 1986-01-08 | $7700.00 | Window Closed / Lapsed |