US3850820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antifriction structural material produced from composition comprising carborane-containing polymer binders and solid lubricant
Assignee: Individual
•
Filing: 1973-10-29
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Granted: 1974-11-26
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Expires: 1993-10-29
Abstract
Abstract A composition for producing an antifriction structural material comprising a carborane-containing polymer binder and an inorganic heat resistant solid lubricant. The binder is a polyester, a polyamide, a polyimide, or a polyoxadiazole containing carborane units attached to the polymer chain thereof. A process for producing said antifriction structural material from said composition comprising subjecting the composition to compression moulding at temperatures of up to 400*C, followed by coking at temperatures ranging from 400* to 900*C. The antifriction material according to the present invention is intended for operation in dry-friction units within a wide temperature range.
Inventors
- 👤 N Bekasova
- 👤 L Komarova
- 👤 S Vinogradova
- 👤 P Valetsky
- 👤 A Kalachev
- 👤 E Lyamenkova
- 👤 L Glivka
- 👤 T Burtseva
- 👤 T Babchinitser
- 👤 V Korshak
- 👤 I Gribova
- 👤 A Chumaevskaya
- 👤 B Mgeladze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:06
CPC Classifications
C; C08; C08L; C08L77/00; C08G; C08G63/00; C08G63/68; C08G63/698; C08G63/6984; C08G63/6986; C08G69/00; C08G69/42; C08G73/00; C08G73/06; C08G73/08; C08G73/10; C08K; C08K3/00; C08K3/01; C08K3/013; C08L67/00; C08L67/02; C08L77/06; C08L79/00; C08L79/04; C08L79/06; C08L79/08; C10; C10M; C10M7/00; F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/20; F16C33/201; C10M2201/00; C10M2201/04; C10M2201/041; C10M2201/042; C10M2201/06; C10M2201/061; C10M2201/062; C10M2201/16; C10M2201/18; C10M2227/00; C10N; C10N2050/00; C10N2050/08; C10N2050/10
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
53 words
A COMPOSITION FOR PREPARING AN ANTIFRICTION STRUCTURAL MATERIAL COMPRISING 10 TO 50 PERCENT BY WEIGHT OF A POLYMER BINDER SELECTED FROM THE GROUP CONSISTING OF POLYESTERS, POLYAMIDES, POLYIMIDES, AND POLYOXADIAZOLES CONTAINING CARBORANE UNITS ATTACHED TO THE POLYMER CHAIN THEREOF, AND 90 TO 50 PERCENT BY WEIGHT OF AN INORGANIC HEAT RESISTANT SOLID LUBRICANT.
Claim 2
Dependent Claim
53 words
A COMPOSITION FOR PREPARING AN ANTIFRICTION STRUCTURAL MATERIAL COMPRISING 10 TO 50 PERCENT BY WEIGHT OF A POLYMER BINDER SELECTED FROM THE GROUP CONSISTING OF POLYESTERS, POLYAMIDES, POLYIMIDES, AND POLYOXADIAZOLES CONTAINING CARBORANE UNITS ATTACHED TO THE POLYMER CHAIN THEREOF, AND 90 TO 50 PERCENT BY WEIGHT OF AN INORGANIC HEAT RESISTANT SOLID LUBRICANT.
Claim 3
Dependent Claim
11 words
The composition of claim 1, further comprising a metal oxide filler.
Claim 4
Dependent Claim
26 words
The composition of claim 2, wherein said metal oxide filler is present in an amount of 10 to 30 percent by weight of said solid lubricant.
Claim 5
Dependent Claim
22 words
The composition of claim 1, wherein said solid lubricant is selected from the group consisting of molybdenum disulfide, graphite, and boron nitride.
Claim 6
Dependent Claim
22 words
The composition of claim 2, wherein said metal oxide filler is selected from the group consisting of copper oxide and zinc oxide.
Claim 7
Dependent Claim
95 words
A process for producing an antifriction structural material from a composition comprising 10 to 50 percent by weight of a polymer binder selected from the group consisting of polyesters, polyamides, polyimides, and polyoxadiazoles containing carborane units attached to the polymer chain thereof, and 90 to 50 percent by weight of an inorganic heat resistant solid lubricant, said process comprising the steps of: a. mixing said binder and said solid lubricant; b. compression moulding the mixture at a temperature up to 400*C, and c. coking the moulded mixture at a temperature ranging from 400* to 900*C.
Claim 8
Dependent Claim
95 words
A process for producing an antifriction structural material from a composition comprising 10 to 50 percent by weight of a polymer binder selected from the group consisting of polyesters, polyamides, polyimides, and polyoxadiazoles containing carborane units attached to the polymer chain thereof, and 90 to 50 percent by weight of an inorganic heat resistant solid lubricant, said process comprising the steps of: a. mixing said binder and said solid lubricant; b. compression moulding the mixture at a temperature up to 400*C, and c. coking the moulded mixture at a temperature ranging from 400* to 900*C.
Claim 9
Dependent Claim
19 words
The process of claim 6, wherein a metal oxide filler is additionally mixed into said composition in step a).
Claim 10
Dependent Claim
26 words
The process of claim 7, wherein said metal oxide filler is used in an amount of 10 to 30 percent by weight of said solid lubricant.
Claim 11
Dependent Claim
22 words
The process of claim 6, wherein said solid lubricant is selected from the group consisting of molybdenum disulfide, graphite, and boron nitride.
Claim 12
Dependent Claim
22 words
The process of claim 7, wherein said metal oxide filler is selected from the group consisting of copper oxide and zinc oxide.
Claim 13
Dependent Claim
21 words
The process of claim 6, wherein step b) is conducted at a temperature of 200*-350*C and a pressure of 1,000 kg/cm2.
Claim 14
Dependent Claim
11 words
An antifriction structural material produced by the process of claim 6.
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) | 1977-11-25 | 1978-05-27 | 1978-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-25 | 1982-05-27 | 1982-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-25 | 1986-05-27 | 1986-11-26 | $7700.00 | Window Closed / Lapsed |