US2999822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixture of two copolymers of a conjugated diolefinic compound and an oily plasticizer and articles formed therefrom
Assignee: Aerojet Rocketdyne Holdings Inc
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Filing: 1952-06-07
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Granted: 1961-09-12
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Expires: 1972-06-07
Abstract
No abstract record available.
Inventors
- 👤 Emert S Pfau
- 👤 Gilbert H Swart
- 👤 Kermit V Weinstock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:08
CPC Classifications
C; C08; C08L; C08L9/00; C08L9/06; C08L25/00; C08L25/02; C08L25/04; C08L25/08; C08L25/10; C08L2205/00; C08L2205/03; C08L91/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A MIXTURE OF (1) 5-80 PARTS OF A COPOLYMER OF A CONJUGATED DIOLEFINIC COMPOUND OF LESS THAN 8 CARBON ATOMS WITH A MONO-OLEFINIC COMPOUND COPOLYMERIZABLE THEREWITH AND COMPRISING AT LEAST 80 PARTS BY WEIGHT OF SAID MONO-OLEFINIC COMPOUND, (2) 95-20 PARTS OF A POLYMER OF A CONJUGATED DIOLEFINIC COMPOUND OF LESS THAN 8 CARBON ATOMS WITH A MONO-OLEFINIC COMPOUND COPOLYMERIZABLE THEREWITH, HAVING AT LEAST 50 PERCENT BY WEIGHT OF DIOLEFINIC COMPOUND RESIDUE THEREIN AND BEING OF A TOUGHNESS SUCH THAT A COMPOSITION COMPOSED OF 100 PARTS BY WEIGHT THEREOF, 30 PARTS BY WEIGHT OF HYDROCARBON OIL AND 65 PARTS OF HIGH ABRASION FURNACE CARBON BLACK WILL HAVE A MOONEY PLASTICITY OF AT LEAST 60, AND (3) AN OILY PLASTICIZER IN THE AMOUNT OF AT LEAST 30 PERCENT BY WEIGHT OF SAID POLYMER.
Claim 2
Dependent Claim
132 words
A MIXTURE OF (1) 5-80 PARTS OF A COPOLYMER OF A CONJUGATED DIOLEFINIC COMPOUND OF LESS THAN 8 CARBON ATOMS WITH A MONO-OLEFINIC COMPOUND COPOLYMERIZABLE THEREWITH AND COMPRISING AT LEAST 80 PARTS BY WEIGHT OF SAID MONO-OLEFINIC COMPOUND, (2) 95-20 PARTS OF A POLYMER OF A CONJUGATED DIOLEFINIC COMPOUND OF LESS THAN 8 CARBON ATOMS WITH A MONO-OLEFINIC COMPOUND COPOLYMERIZABLE THEREWITH, HAVING AT LEAST 50 PERCENT BY WEIGHT OF DIOLEFINIC COMPOUND RESIDUE THEREIN AND BEING OF A TOUGHNESS SUCH THAT A COMPOSITION COMPOSED OF 100 PARTS BY WEIGHT THEREOF, 30 PARTS BY WEIGHT OF HYDROCARBON OIL AND 65 PARTS OF HIGH ABRASION FURNACE CARBON BLACK WILL HAVE A MOONEY PLASTICITY OF AT LEAST 60, AND (3) AN OILY PLASTICIZER IN THE AMOUNT OF AT LEAST 30 PERCENT BY WEIGHT OF SAID POLYMER.
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) | 1964-09-11 | 1965-03-13 | 1965-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-11 | 1969-03-13 | 1969-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-11 | 1973-03-13 | 1973-09-12 | $7700.00 | Window Closed / Lapsed |