US4423093A
Expired / Lapsed
US
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Method of applying polyarylene sulphide compositions to a bearing
Assignee: Federal Mogul Engineering Ltd
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Filing: 1981-07-03
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Granted: 1983-12-27
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Expires: 2001-07-03
Abstract
Abstract A method of applying a coating of polyarylene sulphide to a bearing in which an initmate mixture of a polyarylene sulphide with an aryl ester of an aryl alcohol is applied to a bearing blank and subsequently heated to evaporate the ester and cure the coating. The mixture can be a dry powder mixture, a wet powder mixture, a paste, a suspension, a liquid solution or a solid solution. The preferred mixture comprises polyphenylene sulphide and benzyl benzoate.
Inventors
- 👤 Glyndwr J. Davies
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:32
CPC Classifications
B; B05; B05D; B05D5/00; B05D5/08; C; C09; C09D; C09D181/00; C09D181/02; F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/20; F16C33/201
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
49 words
A method of applying a coating of polyarylene sulphide to a bearing which comprises: applying a mixture of polyarylene sulphide and an aryl ester of an aryl alcohol to the surface of a bearing blank; and subsequently heating said mixture to evaporate said ester and to cure said coating.
Claim 2
Independent Claim
49 words
A method of applying a coating of polyarylene sulphide to a bearing which comprises: applying a mixture of polyarylene sulphide and an aryl ester of an aryl alcohol to the surface of a bearing blank; and subsequently heating said mixture to evaporate said ester and to cure said coating.
Claim 3
Dependent Claim
13 words
A method according to claim 1 wherein said polyarylene sulphide is polyphenylene sulphide.
Claim 4
Dependent Claim
12 words
A method according to claim 1 wherein said ester is benzyl benzoate.
Claim 5
Dependent Claim
14 words
A method according to claim 1 wherein said mixture is a dry powder mixture.
Claim 6
Dependent Claim
16 words
A method according to claim 1 wherein said mixture is in the form of a paste.
Claim 7
Dependent Claim
23 words
A method according to claim 1 wherein said polyarylene sulphide is in suspension in said ester; said ester being in the liquid phase.
Claim 8
Dependent Claim
15 words
A method according to claim 1 wherein said polyarylene sulphide is dissolved in said ester.
Claim 9
Dependent Claim
17 words
A method according to claim 1 wherein said ester is in solid solution in said polyarylene sulphide.
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) | 1986-12-26 | 1987-06-27 | 1987-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-26 | 1991-06-27 | 1991-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-26 | 1995-06-27 | 1995-12-27 | $7700.00 | Window Closed / Lapsed |