Patent US2489681A successfully refreshed from Google Patents.
US4156049A
Expired / Lapsed
US
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Laminate, particularly for anti-friction and slide members, and method for the production of the same
Assignee: Glyco Metall Werke Daelen und Loos GmbH
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Filing: 1978-02-07
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Granted: 1979-05-22
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Expires: 1998-02-07
Abstract
Abstract A laminate for anti-friction and slide members, comprising a metallic substrate strip having bonded to its surface a slide layer of thermally, highly stressable plastics containing thermosetting polyimide resins and polytetrafluorethylene, wherein the slide layer additionally contains polyimide lacquer mixed therein in the form of a fine powder to bond the layer to the substrate, said lacquer containing thermoplastic material selected from the group consisting of polyarylene sulfide, aliphatic polysulfide and polysulfone, thereby to improve the heat and abrasion resistance of the slide layer.
Inventors
- 👤 Erich Hodes
- 👤 Danilo Sternisa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:48
CPC Classifications
C; C08; C08L; C08L79/00; C08L79/04; C08L79/08; F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/20; F16C33/201; F16C33/28; Y; Y10; Y10T; Y10T428/00; Y10T428/31; Y10T428/31504; Y10T428/31533; Y10T428/3154; Y10T428/31544; Y10T428/31678; Y10T428/31681; Y10T428/31721
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
83 words
A laminate for anti-friction and slide members, comprising in combination: (a) a metallic substrate, (b) a synthetic thermally highly stressable plastic slide layer comprising thermosetting polyimide resins in finelypowdered form bonded to one surface of the substrate, (c) said slide layer containing as a binder a polyimide lacquer which bonds the slide layer to the substrate, (d) said slide layer additionally containing a material for improving the heat and abrasion resistance, selected from the group consisting of polyarylene sulfide, aliphatic polysulfide and polysulfone.
Claim 2
Dependent Claim
83 words
A laminate for anti-friction and slide members, comprising in combination: (a) a metallic substrate, (b) a synthetic thermally highly stressable plastic slide layer comprising thermosetting polyimide resins in finelypowdered form bonded to one surface of the substrate, (c) said slide layer containing as a binder a polyimide lacquer which bonds the slide layer to the substrate, (d) said slide layer additionally containing a material for improving the heat and abrasion resistance, selected from the group consisting of polyarylene sulfide, aliphatic polysulfide and polysulfone.
Claim 3
Dependent Claim
19 words
A laminate according to claim 1, wherein: (a) the slide layer additionally contains polytetrafluorethylene to improve its running properties.
Claim 4
Dependent Claim
48 words
A laminate according to claim 2, wherein: (a) the polytetrafluorethylene and the material for improving the heat and abrasion resistance which is selected from the sulfide or sulfone group, together constitute by weight, between 30 percent and 80 percent relative to the weight of the entire slide layer.
Claim 5
Dependent Claim
34 words
A laminate according to claim 2, wherein: (a) the minimum amount of material selected from the sulfide or sulfone group is approximately 30 percent by weight relative to the weight of the slide layer.
Claim 6
Dependent Claim
21 words
A laminate according to claim 1, wherein: (a) the material selected from the sulfide or sulfone group consists of polyphenylene sulfide.
Claim 7
Dependent Claim
20 words
A laminate according to claim 1, wherein: (a) the material selected from the sulfide or sulfone group contains polyarylene sulfide.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-05-21 | 1982-11-20 | 1983-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-21 | 1986-11-20 | 1987-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-21 | 1990-11-20 | 1991-05-22 | $7700.00 | Window Closed / Lapsed |