US3074616A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Article of blend of a copolymer of ethylene and 1-butene and polyisobutylene
Assignee: Phillips Petroleum Co
•
Filing: 1959-07-13
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Granted: 1963-01-22
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Expires: 1979-07-13
Abstract
No abstract record available.
Inventors
- 👤 Robert J Martinovich
- 👤 Ronald P Marsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:57
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/06; C08L23/08; C08L23/0807; C08L23/0815; D; D01; D01F; D01F6/00; D01F6/44; D01F6/46; C08L23/18; C08L23/20; C08L23/22; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1334; Y10T428/1345
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A FILM OF BLENDED THERMOPLASTIC CONSISTING ESSENTIALLY OF FROM 68 TO 72 WEIGHT PERCENT OF A COPOLYMER OF ETHYLENE AND 1- BUTENE, SAID COPOLYMER HAVING A DENSITY IN THE RANGE 0.948 TO 0.952 AT 23* C., AND FROM 32 TO 28 WEIGHT PERCENT, RESPECTIVELY, OF A POLYISOBUTYLENE HAVING A MOLECULAR WEIGHT IN THE RANGE 80,000 TO 200,000 BASED ON VISCOSITY DETERMINATION.
Claim 2
Dependent Claim
61 words
A FILM OF BLENDED THERMOPLASTIC CONSISTING ESSENTIALLY OF FROM 68 TO 72 WEIGHT PERCENT OF A COPOLYMER OF ETHYLENE AND 1- BUTENE, SAID COPOLYMER HAVING A DENSITY IN THE RANGE 0.948 TO 0.952 AT 23* C., AND FROM 32 TO 28 WEIGHT PERCENT, RESPECTIVELY, OF A POLYISOBUTYLENE HAVING A MOLECULAR WEIGHT IN THE RANGE 80,000 TO 200,000 BASED ON VISCOSITY DETERMINATION.
References Cited (Backward Citations)
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Cited
US2414300A
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US2788340A
Cited
US2825721A
Cited
US2727024A
Cited
US2854435A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-21 | 1966-07-23 | 1967-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-21 | 1970-07-23 | 1971-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-21 | 1974-07-23 | 1975-01-22 | $7700.00 | Window Closed / Lapsed |