Patent US4026863A successfully refreshed from Google Patents.
US4026863A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorocarbon polymer composite containing a treated filler
Assignee: AGC Inc
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Filing: 1976-06-07
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Granted: 1977-05-31
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Expires: 1996-06-07
Abstract
Abstract A fluorocarbon polymer composite comprises a fluorocarbon polymer and a filler in a form of powder, granules, beads, fiber, fabric sheet or a like which is treated with polyphenylene sulfide.
Inventors
- 👤 Shigeru Iseki
- 👤 Mituharu Morozumi
- 👤 Shoji Atsuta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:42
CPC Classifications
C; C08; C08K; C08K9/00; C08K9/08; C08K9/04; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2904; Y10T428/2907; Y10T428/2913; Y10T428/2933
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
48 words
A fluorocarbon polymer composite which comprises a fluorocarbon polymer and a filler treated with polyphenylene sulfide wherein said polyphenylene sulfide is applied on the surface of the filler and is present in an amount within the range of from 0.5 to 10 weight percent based on the filler.
Claim 2
Dependent Claim
48 words
A fluorocarbon polymer composite which comprises a fluorocarbon polymer and a filler treated with polyphenylene sulfide wherein said polyphenylene sulfide is applied on the surface of the filler and is present in an amount within the range of from 0.5 to 10 weight percent based on the filler.
Claim 3
Dependent Claim
26 words
The fluorocarbon polymer composite of claim 1, wherein the filler is in the form of a powder, granules, beads, fiber, fabric sheet or other solid material.
Claim 4
Dependent Claim
26 words
The fluorocarbon polymer composite of claim 1, wherein 1 to 80 weight parts of the filler is added to 100 weight parts of the fluorocarbon polymer.
Claim 5
Dependent Claim
20 words
The fluorocarbon polymer composite of claim 1, wherein the fluorocarbon polymer is a polymer or copolymer of tetrafluoroethylene and/or hexafluoropropylene.
Claim 6
Dependent Claim
26 words
The fluorocarbon polymer composite of claim 1, wherein the filler is a fibrous filler having an aspect ratio of length to diameter of 1 to 300.
Claim 7
Dependent Claim
21 words
The fluorocarbon polymer composite of claim 1, wherein the filler is a fibrous mat or a cloth treated with polyphenylene sulfide.
Claim 8
Dependent Claim
17 words
The fluorocarbon polymer composite of claim 1, wherein the filler is glass fiber treated with polyphenylene sulfide.
Claim 9
Dependent Claim
40 words
In the process of preparing a fluorocarbon composite comprising a fluorocarbon polymer and a filler, the improvement which comprises applying on the surface of the filler from 0.5 to 10 weight percent based on the filler of a polyphenylene sulfide.
Claim 10
Dependent Claim
40 words
In the process of preparing a fluorocarbon composite comprising a fluorocarbon polymer and a filler, the improvement which comprises applying on the surface of the filler from 0.5 to 10 weight percent based on the filler of a polyphenylene sulfide.
Claim 11
Dependent Claim
24 words
The process of claim 8, wherein the filler is in the form of a powder, granules, beads, fiber, fabric sheet or other solid material.
Claim 12
Dependent Claim
24 words
The process of claim 8, wherein 1 to 80 weight parts of the filler is added to 100 weight parts of the fluorocarbon polymer.
Claim 13
Dependent Claim
18 words
The process of claim 8, wherein the fluorocarbon polymer is a polymer or copolymer of tetrafluoroethylene and/or hexafluoropropylene.
Claim 14
Dependent Claim
24 words
The process of claim 8, wherein the filler is a fibrous filler having an aspect ratio of length to diameter of 1 to 300.
Claim 15
Dependent Claim
19 words
The process of claim 8, wherein the filler is a fibrous mat or a cloth treated with polyphenylene sulfide.
Claim 16
Dependent Claim
15 words
The process of claim 8, wherein the filler is glass fiber treated with polyphenylene sulfide.
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) | 1980-05-30 | 1980-11-29 | 1981-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-30 | 1984-11-29 | 1985-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-30 | 1988-11-29 | 1989-05-31 | $7700.00 | Window Closed / Lapsed |