US4707387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite rubber material and process for making same
Assignee: IST Corp USA
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Filing: 1986-12-09
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Granted: 1987-11-17
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Expires: 2006-12-09
Abstract
Abstract An improved composite rubber material having a baked layer of fluorine resin of 10 microns to about 1 millimeter in thickness is proposed. The coated layer of fluorine resin is baked at a temperature over 400° C. for not more than 7 minutes. This assures that the fluorine resin is baked without deteriorating the rubber material.
Inventors
- 👤 Isamu Sakane
- 👤 Satsuki Kawauchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:56
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/50; B05D7/52; B05D7/54; B05D7/546; B05D3/00; B05D3/02; B05D3/0254; B05D3/0272; B05D7/02; B05D2202/00; B05D2254/00; B05D2254/02; B05D2506/00; B05D2506/10; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/3154; Y10T428/31544; Y10T428/31826
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
84 words
A process for manufacturing a composite material comprising a rubber substrate bearing a layer of fluorine resin of 10 microns to about 1 millimeter in thickness, said process comprising the steps of coating said rubber substrate with said fluorine resin and baking said fluorine resin at a temperature over the melting point of said fluorine resin, and wherein said fluorine resin is baked at a temperature over 400° C. for not more than 7 minutes, so as to not substantially deteriorate said rubber substrate.
Claim 2
Dependent Claim
84 words
A process for manufacturing a composite material comprising a rubber substrate bearing a layer of fluorine resin of 10 microns to about 1 millimeter in thickness, said process comprising the steps of coating said rubber substrate with said fluorine resin and baking said fluorine resin at a temperature over the melting point of said fluorine resin, and wherein said fluorine resin is baked at a temperature over 400° C. for not more than 7 minutes, so as to not substantially deteriorate said rubber substrate.
Claim 3
Dependent Claim
31 words
The process as claimed in claim 1, wherein said rubber substrate is selected from the group consisting of silicon rubber, fluorine rubber, ethylene vinyl acetate copolymer, butyl rubber and acryl rubber.
Claim 4
Dependent Claim
25 words
The process as claimed in claim 1, wherein said fluorine resin is selected from the group consisting of tetrafluoroethylene resin, tetrafluoroethylene-perfluorovinylether copolymer, and tetrafluoroethylene-hexafluoropropylene copolymer.
Claim 5
Dependent Claim
22 words
The process according to claim 1, wherein the fluorine resin is tetrafluoroethylene perfluorovinylether copolymer in a thickness of 10 to 20 microns.
References Cited (Backward Citations)
US4522866A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-11-16 | 1991-05-18 | 1991-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-11-16 | 1995-05-18 | 1995-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-11-16 | 1999-05-18 | 1999-11-17 | $7700.00 | Window Closed / Lapsed |