US3299174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions comprising mono-olefin polymers and hydrogenated block copolymers
Assignee: Shell USA Inc
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Filing: 1963-04-25
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Granted: 1967-01-17
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Expires: 1983-04-25
Abstract
No abstract record available.
Inventors
- 👤 Calvin J Kuhre
- 👤 Charles A Dallas
- 👤 Walter R Haefele
- 👤 Marvin A Deisz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:10
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08F; C08F287/00; C08L23/04; C08L23/06; C08L23/10; C08L53/00; C08L53/02; Y; Y10; Y10S; Y10S525/00; Y10S525/94
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
A POLYMERIC COMPOSITION COMPRISING: (1) A HYDROGENATED BLOCK COPOLYMER HAVING THE GENERAL CONFIGURATION A-B-A WHEREIN, PRIOR TO HYDROGENATION, (A) THE A''S ARE POLYMER BLOCKS OF A MONO ALKENYL AROMATIC HYDROCARBON, SAID BLOCK HAVING AN AVERAGE MOLECULAR WEIGHT OF 4000 TO 115,000, AND (B) B IS A POLYMER BLOCK OF A CONJUGATED DIENE, SAID BLOCK HAVING AN AVERAGE MOLECULAR WEIGHT OF 20,000 TO 450,000, (C) SAID COPOLYMER BEING HYDROGENATED SUFFICIENTLY TO REDUCE TIS UNSATURATION TO LESS THAN 30% OF ITS ORIGINAL VALUE; AND (2) AN ALPHA OLEFIN POLYMER HAVING A MOLECULAR WEIGHT OF AT LEAST 5000 OF THE GROUP CONSISIGN OF HOMOPOLYMERS OF UNBRANCHED ALPHA-MONOOLEFINS OF ABOUT 2 TO 6 CARBON ATOMS AND COPOLYMERS OF THESE MATERIALS WITH EACH OTHER.
Claim 2
Dependent Claim
119 words
A POLYMERIC COMPOSITION COMPRISING: (1) A HYDROGENATED BLOCK COPOLYMER HAVING THE GENERAL CONFIGURATION A-B-A WHEREIN, PRIOR TO HYDROGENATION, (A) THE A''S ARE POLYMER BLOCKS OF A MONO ALKENYL AROMATIC HYDROCARBON, SAID BLOCK HAVING AN AVERAGE MOLECULAR WEIGHT OF 4000 TO 115,000, AND (B) B IS A POLYMER BLOCK OF A CONJUGATED DIENE, SAID BLOCK HAVING AN AVERAGE MOLECULAR WEIGHT OF 20,000 TO 450,000, (C) SAID COPOLYMER BEING HYDROGENATED SUFFICIENTLY TO REDUCE TIS UNSATURATION TO LESS THAN 30% OF ITS ORIGINAL VALUE; AND (2) AN ALPHA OLEFIN POLYMER HAVING A MOLECULAR WEIGHT OF AT LEAST 5000 OF THE GROUP CONSISIGN OF HOMOPOLYMERS OF UNBRANCHED ALPHA-MONOOLEFINS OF ABOUT 2 TO 6 CARBON ATOMS AND COPOLYMERS OF THESE MATERIALS WITH EACH OTHER.
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) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |