Patent US3073797A successfully refreshed from Google Patents.
US3073797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of reacting polyethylene-butyl rubber blend with dicumyl peroxide and n-methyl-n-nitroso-4-nitrosoaniline
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1957-12-16
•
Granted: 1963-01-15
•
Expires: 1977-12-16
Abstract
No abstract record available.
Inventors
- 👤 Wilbur F Fischer
- 👤 David R Hammel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:01
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/06; C08L23/18; C08L23/20; C08L23/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A PROCESS FOR PREPARING A MODIFIED BLEND OF POLYETHYLENE AND BUTYL RUBBER COMPRISING REACTING 100 PARTS BY WEIGHT OF POLYETHYLENE HAVING A MOLECULAR WEIGHT IN THE RANGE OF 12,000 TO 500,000; 5 TO 50 PARTS BY WEIGHT OF BUTYL RUBBER WHICH IS A COPOLYMER OF ABOUT 90 TO 99.5% ISOBUTYLENE AND ABOUT 10 TO 0.5% OF A CONJUGATED DIOLEFIN; 0.3 TO 0.7 PART BY WEIGHT OF DICUMYL PEROXIDE; 0.5 TO 1 PART BY WEIGHT OF N-METHYL-N-NITROSO-4-NITROSOANILINE AT A TEMPERATURE IN THE RANGE OF 275 TO 290* F. FOR A TIME IN THE RANGE OF 8 TO 12 MINUTES TO PRODUCE SAID MODIFIED BLEND.
Claim 2
Dependent Claim
103 words
A PROCESS FOR PREPARING A MODIFIED BLEND OF POLYETHYLENE AND BUTYL RUBBER COMPRISING REACTING 100 PARTS BY WEIGHT OF POLYETHYLENE HAVING A MOLECULAR WEIGHT IN THE RANGE OF 12,000 TO 500,000; 5 TO 50 PARTS BY WEIGHT OF BUTYL RUBBER WHICH IS A COPOLYMER OF ABOUT 90 TO 99.5% ISOBUTYLENE AND ABOUT 10 TO 0.5% OF A CONJUGATED DIOLEFIN; 0.3 TO 0.7 PART BY WEIGHT OF DICUMYL PEROXIDE; 0.5 TO 1 PART BY WEIGHT OF N-METHYL-N-NITROSO-4-NITROSOANILINE AT A TEMPERATURE IN THE RANGE OF 275 TO 290* F. FOR A TIME IN THE RANGE OF 8 TO 12 MINUTES TO PRODUCE SAID MODIFIED BLEND.
References Cited (Backward Citations)
US2628214A
Cited
US2609353A
Cited
US2569541A
Cited
US2700185A
Cited
US2847715A
Cited
US2838854A
Cited
US2830919A
Cited
US2832748A
Cited
US2939860A
Cited
US3032519A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |