Patent US3290244A successfully refreshed from Google Patents.
US3290244A
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Grease compositions containing atactic polypropylene
Assignee: Sunoco Inc
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Filing: 1963-07-11
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Granted: 1966-12-06
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Expires: 1983-07-11
Abstract
No abstract record available.
Inventors
- 👤 Arthur T Polishuk
- 👤 Herbert L Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:47
CPC Classifications
C; C10; C10M; C10M5/00; C10M2201/00; C10M2201/10; C10M2201/102; C10M2201/103; C10M2201/105; C10M2203/00; C10M2203/10; C10M2203/102; C10M2203/104; C10M2203/106; C10M2203/108; C10M2205/00; C10M2205/02; C10M2205/024; C10M2205/026; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/122; C10M2207/123; C10M2207/125; C10M2207/129; C10M2207/14; C10M2207/141; C10M2207/142; C10M2207/22; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/06; C10N2020/00; C10N2020/01; C10N2040/00; C10N2040/30; C10N2040/32; C10N2040/34; C10N2040/36; C10N2040/38; C10N2040/40; C10N2040/42; C10N2040/44; C10N2040/50; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
81 words
A GREASE COMPOSITION COMPRISING AS A FIRST COMPONENT A MAJOR PROPORTION OF MINERAL LUBRICATING OIL THICKENED TO GREASE CONSISTENCY WITH A MINOR PROPORTION OF A THICKENING AGENT AND AS A SECOND COMPONENT, IN AN AMOUNT SUFFICIENT TO IMPROVE THE WATER WASHOFF OF THE COMPOSITON, A MATERIAL SELECTED FROM THE GROUP CONSISTING OF 2-10% OIL-SOLUBLE ATACTIC POLYPROPYLENE AS THE ONLY PROPYLENE HOMOPOLYMER IN SAID COMPOSITION AND 0.3-5% OIL-SOLUBLE ATACTIC ETHYLENE-PROPYLENE COPOLYMER, ALL PERCENTAGES AND PROPORTIONS BEING BY WEIGHT OF THE TOTAL COMPOSITION.
Claim 2
Dependent Claim
81 words
A GREASE COMPOSITION COMPRISING AS A FIRST COMPONENT A MAJOR PROPORTION OF MINERAL LUBRICATING OIL THICKENED TO GREASE CONSISTENCY WITH A MINOR PROPORTION OF A THICKENING AGENT AND AS A SECOND COMPONENT, IN AN AMOUNT SUFFICIENT TO IMPROVE THE WATER WASHOFF OF THE COMPOSITON, A MATERIAL SELECTED FROM THE GROUP CONSISTING OF 2-10% OIL-SOLUBLE ATACTIC POLYPROPYLENE AS THE ONLY PROPYLENE HOMOPOLYMER IN SAID COMPOSITION AND 0.3-5% OIL-SOLUBLE ATACTIC ETHYLENE-PROPYLENE COPOLYMER, ALL PERCENTAGES AND PROPORTIONS BEING BY WEIGHT OF THE TOTAL COMPOSITION.
Claim 3
Dependent Claim
37 words
A GREASE COMPOSITION ACCORDING TO CLAIM 1 WHEREIN SAID OIL-SOLUBLE ATACTIC POLYPROPYLENE HAS A MOLECULAR WEIGHT OF 10,000 TO 50,000 AND SAID OIL-SOLUBLE ATACTIC ETHYLENE-PROPYLENE COPOLYMER HAS AN INTRINSIC VISCOSITY IN THE RANGE OF 0.3 TO 4.0.
Claim 4
Dependent Claim
17 words
A GREASE COMPOSITION ACCORDING TO CLAIM 2 WHEREIN SAID THICKENING AGENT IS A FATTY ACID METALLIC SOAP.
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) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |