US3835079A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot melt compositions comprising styrene-isobutylene copolymer,wax,and a primary resin
Assignee: Velsicol Chemical LLC
•
Filing: 1973-01-22
•
Granted: 1974-09-10
•
Expires: 1993-01-22
Abstract
Abstract A SOLID, HOMOGENEOUS AND ESSENTIALLY RANDOM COPOLYMER OF STYRENE AND ISOBUTYLENE HAVING A NUMBER AVERAGE MOLECULAR WEIGHT OF FROM ABOUT 1000 TO ABOUT 4000, A HETEROGENEITY INDEX OF FROM ABOUT 1.50 TO ABOUT 2.25 AND A STYRENE CONTENT OF FROM ABOUT 40 TO ABOUT 90 WEIGHT PERCENT WITH ITS HIGHER MOLECULAR WEIGHT FRACRIONS HAVING A HIGHER STYRENE CONTENT THAN THE AVERAGE CONTENT OF THE COPOLYMER.
Inventors
- 👤 F Scardiglia
- 👤 T Hokama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:53
CPC Classifications
C; C09; C09J; C09J125/00; C09J125/02; C09J125/04; C09J125/08; C08; C08F; C08F10/00; C08F210/00; C08F210/04; C08F210/08; C08F210/10; C08F212/00; C08F212/02; C08F212/04; C08F212/06; C08F212/08; C08L; C08L23/00; C08L23/02; C08L23/18; C08L23/20; C08L23/22; C08L25/00; C08L25/02; C08L25/04; C08L25/08; C08L91/00; C08L91/06; C09J121/00; C09J123/00; C09J123/02; C09J123/04; C08L23/26; C08L2023/40; C08L2023/42; C08L21/00; C08L2205/00; C08L2205/03; C08L23/04; C08L23/06; C08L23/08; C08L23/0846; C08L23/0853; C08L2666/00; C08L2666/02; C08L2666/04; C08L2666/06; C08L2666/08; C08L7/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1977-09-09 | 1978-03-11 | 1978-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-09 | 1982-03-11 | 1982-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-09 | 1986-03-11 | 1986-09-10 | $7700.00 | Window Closed / Lapsed |