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US3002913A
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Nuclear radiation to improve shear stability of p-xylylene copolymer v.i. improving agents
Assignee: Individual
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Filing: 1959-03-30
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Granted: 1961-10-03
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Expires: 1979-03-30
Abstract
No abstract record available.
Inventors
- 👤 Manuel A Pino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:03
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/28; C10; C10M; C10M143/00; C10M145/00; C10M145/18; C10M145/24; C08J2365/00; C08J2365/04; C10M2203/00; C10M2203/02; C10M2203/022; C10M2203/024; C10M2203/04; C10M2203/06; C10M2203/10; C10M2203/104; C10M2203/106; C10M2205/00; C10M2207/00; C10M2207/04; C10M2207/28; C10M2209/00; C10M2209/02; C10M2209/10; C10M2209/103; Y; Y10; Y10S; Y10S585/00; Y10S585/929; Y10S585/944
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A PROCESS OF IMPROVING SHEAR STABILITY OF P-XYLYLENE COPOLYMERS AS VISCOSITY INDEX IMPROVING AGENTS IN LUBRICATING OIL COMPOSITIONS COMPRISING IRRADIATING AROMATIC LUBRICATING OILS CONTAINING SAID P-XYLYLENE COPOLYMERS BY MEANS OF NUCLEAR RADIATION, AT A DOSAGE OF 10*7 TO 10*9 RADS, WHEREIN SAID NUCLEAR RADIATION IS GAMMA RADIATION, WHEREIN AND P-XYLYLENE COPOLYMERS ARE POLYMERS SELECTED FROM THE GROUP CONSISTING OF POLY(ALKYLBENZENE-P-XYLYLENES), POLY(DIPHENYL ALKANE-P-XYLYLENES), AND POLY(DIPHENYL ETHER-P-XYLYLENES).
Claim 2
Dependent Claim
65 words
A PROCESS OF IMPROVING SHEAR STABILITY OF P-XYLYLENE COPOLYMERS AS VISCOSITY INDEX IMPROVING AGENTS IN LUBRICATING OIL COMPOSITIONS COMPRISING IRRADIATING AROMATIC LUBRICATING OILS CONTAINING SAID P-XYLYLENE COPOLYMERS BY MEANS OF NUCLEAR RADIATION, AT A DOSAGE OF 10*7 TO 10*9 RADS, WHEREIN SAID NUCLEAR RADIATION IS GAMMA RADIATION, WHEREIN AND P-XYLYLENE COPOLYMERS ARE POLYMERS SELECTED FROM THE GROUP CONSISTING OF POLY(ALKYLBENZENE-P-XYLYLENES), POLY(DIPHENYL ALKANE-P-XYLYLENES), AND POLY(DIPHENYL ETHER-P-XYLYLENES).
References Cited (Backward Citations)
US2336620A
Cited
US2803598A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-02 | 1965-04-03 | 1965-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-02 | 1969-04-03 | 1969-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-02 | 1973-04-03 | 1973-10-03 | $7700.00 | Window Closed / Lapsed |