Patent US3555110A successfully refreshed from Google Patents.
US3555110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blends of alpha-monoolefin block copolymers with ethylene-acrylate or alkenyl carboxylate copolymers
Assignee: Eastman Kodak Co
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Filing: 1969-05-07
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Granted: 1971-01-12
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Expires: 1989-05-07
Abstract
Abstract COPOLYMERS SUCH AS ETHYLENE/ALKYL ACRYLATE, ETHYLENE/ ARYL ACRYLATE AND ETHYLENE/ALKENYL CARBOXYLATE ARE HIGHLY COMPATIBLE WITH 2-PERIOD SEQUENTIAL ALPHA - MONOOLEFIN BLOCK POLYMERS SUCH AS PROPYLENE/ETHYLENE POLYMERS HAVING FROM ABOUT 50% TO ABOUT 99% BY WEIGHT OF POLYPROPYLENE SEGMENT IN THE POLYMER CHAIN. MOLDED OBJECTS PREPARED FROM 2-PERIOD SEQUENTIAL BLOCK POLYMER AND ETHYLENE/ALKYL ACRYLATE, ETHYLENE/ARYL ACRYLATE AND ETHYLENE/ALKENYL ACRYLATE BLENDS HAVE EXCELLENT CLARITY, IMPROVED LOW TEMPERATURE PROPERTIES AND GOOD IMPACT STRENGTH AT LOW TEMPERATURE.
Inventors
- 👤 Richard L Mcconnell
- 👤 Max F Meyer Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:28
CPC Classifications
C; C08; C08L; C08L53/00; Y; Y10; Y10S; Y10S525/00; Y10S525/932
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) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |