US2545516A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diolefin-nitrile copolymer plasticized with hydrocarbon polymer
Assignee: Standard Oil Development Co
•
Filing: 1946-12-31
•
Granted: 1951-03-20
•
Expires: 1966-12-31
Abstract
No abstract record available.
Inventors
- 👤 Albert M Gessler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:28
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/12; C08L; C08L9/00; C08L9/02; C08L23/00; C08L23/02; C08L23/18; C08L23/20; C08L23/22; C08L91/00; C08L91/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A COMPOSITION OF MATTER COMPRISING 100 PARTS OF A RUBBER-LIKE EMULSION COPOLYMER OF 55 TO 85% OF A CONJUGATED DIOLEFIN HAVING FROM 4 TO 6 CARBON ATOMS PER MOLECULE WITH 45 TO 15% OF ACRYLONITRILE AND, AS A SOFTENING AGENT THEREFOR, 3 TO 25 PARTS OF A HYDROCARBON POLYMER HAVING A STAUDINGER MOLECULAR WEIGHT BETWEEN 8,000 AND 20,000 AND SELECTED FROM THE GROUP CONSISTING OF POLYISOBUTYLENE, POLYBUTADIENE, POLYISOPRENE AND COPOLYMERS OF ISOBUTYLENE WITH ISOPRENE AND 5 TO 30 PARTS OF A COMPLEMENTARY SOFTENER SELECTED FROM THE GROUP CONSISTING OF LINSEED OIL POLYMER GEL AND DIETHYLENE GLYCOL PHTHALATE.
Claim 2
Dependent Claim
97 words
A COMPOSITION OF MATTER COMPRISING 100 PARTS OF A RUBBER-LIKE EMULSION COPOLYMER OF 55 TO 85% OF A CONJUGATED DIOLEFIN HAVING FROM 4 TO 6 CARBON ATOMS PER MOLECULE WITH 45 TO 15% OF ACRYLONITRILE AND, AS A SOFTENING AGENT THEREFOR, 3 TO 25 PARTS OF A HYDROCARBON POLYMER HAVING A STAUDINGER MOLECULAR WEIGHT BETWEEN 8,000 AND 20,000 AND SELECTED FROM THE GROUP CONSISTING OF POLYISOBUTYLENE, POLYBUTADIENE, POLYISOPRENE AND COPOLYMERS OF ISOBUTYLENE WITH ISOPRENE AND 5 TO 30 PARTS OF A COMPLEMENTARY SOFTENER SELECTED FROM THE GROUP CONSISTING OF LINSEED OIL POLYMER GEL AND DIETHYLENE GLYCOL PHTHALATE.
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) | 1954-03-19 | 1954-09-18 | 1955-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-19 | 1958-09-18 | 1959-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-19 | 1962-09-18 | 1963-03-20 | $7700.00 | Window Closed / Lapsed |