US4107356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of powder lining
Assignee: AGC Inc
•
Filing: 1975-10-15
•
Granted: 1978-08-15
•
Expires: 1995-10-15
Abstract
Abstract A powder lining method which comprises coating a substrate with a synthetic resin powder containing 2 to 50 wt. % of a carbon fiber having a length of less than 1000 microns and subsequently baking. The use of a synthetic resin powder containing carbon fibers makes possible the preparation of significantly thicker linings in a single step than was possible previously.
Inventors
- 👤 Hiroshi Ukihashi
- 👤 Tetsuya Uchino
- 👤 Takeshi Abe
- 👤 Nobuaki Kunii
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:46
CPC Classifications
C; C09; C09D; C09D123/00; C09D123/02; C09D123/04; C09D123/08; C08; C08K; C08K7/00; C08K7/02; C08K7/04; C08K7/06; C09D127/00; C09D127/02; C09D127/12; C09D5/00; C09D5/03; C09D5/033; Y; Y10; Y10S; Y10S524/00; Y10S524/904
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
103 words
In a powder lining process which comprises coating a synthetic resin powder onto a substrate and baking the adhered powder and substrate the improvement which comprises, coating onto said substrate a fluorine-containing melt processable synthetic resin powder having a bulk density of 0.1 to 1.2 gms/cm 3 and an average particle diameter of 2-400 microns which contains carbon fibers having a length of less than 1000 microns, a diameter of 5-30 microns and a length to diameter ratio of 2-100 wherein the content of carbon fiber in the total mixture of synthetic resin powder and carbon fiber is from 2 to 50 wt.%.
Claim 2
Dependent Claim
103 words
In a powder lining process which comprises coating a synthetic resin powder onto a substrate and baking the adhered powder and substrate the improvement which comprises, coating onto said substrate a fluorine-containing melt processable synthetic resin powder having a bulk density of 0.1 to 1.2 gms/cm 3 and an average particle diameter of 2-400 microns which contains carbon fibers having a length of less than 1000 microns, a diameter of 5-30 microns and a length to diameter ratio of 2-100 wherein the content of carbon fiber in the total mixture of synthetic resin powder and carbon fiber is from 2 to 50 wt.%.
Claim 3
Dependent Claim
27 words
In the powder lining process of claim 1, the synthetic resin powder is ethylene-tetrafluoroethylene copolymer, ethylene-trifluorochloroethylene copolymer, vinylidenefluoride polymer, tetrafluoroethylene-perfluorovinyl ether copolymer, tetrafluoroethylene-hexafluoropropylene copolymer or trifluorochloroethylene polymer.
Claim 4
Dependent Claim
42 words
In the powder lining process of claim 1, the synthetic resin powder is ethylene-trifluorochloroethylene copolymer powder having molar ratio of trifluorochloroethylene to ethylene of 40 : 60 - 70 : 30, and a bulk density of 0.2 - 1.0 g/cm 3 .
Claim 5
Dependent Claim
46 words
In the powder lining process of claim 1, the synthetic resin powder is ethylene-tetrafluoroethylene copolymer powder having a molar ratio of tetrafluoroethylene to ethylene to ethylene of 40 : 60 - 70 : 30 ; and a bulk density of 0.2 - 1.0 g/cm 3 .
Claim 6
Dependent Claim
47 words
In the powder lining process of claim 1, the synthetic resin powder is a fluorine containing melt processable resin having a bulk density of 0.3 - 0.8 g/cm 3 , a particle diameter of 5 - 250 microns and an angle of respose of less than 50°.
Claim 7
Dependent Claim
25 words
In the powder lining process of claim 1, wherein the substrate is heated to higher temperature than the melting point of the synthetic resin powder.
Claim 8
Dependent Claim
23 words
In the powder lining process of claim 1, wherein a thermal stabilizer is added to the mixture of synthetic resin and carbon fibers.
Claim 9
Dependent Claim
50 words
In the powder lining process of claim 1, wherein the carbon fibers have a diameter of 8-15 microns and a length to diameter ratio of 5 - 20 and the content of carbon fiber to the total mixture of carbon fiber and synthetic resin is from 5 - 30 wt.%.
Claim 10
Dependent Claim
54 words
A powder which comprises a fluorine-containing melt processable resin powder having a bulk density of 0.1 to 1.2 gms/cm 3 and an average particle diameter of 2-400 microns and 2-50 wt.% of carbon fibers having a length of less than 1000 microns, a diameter of 5-30 microns and a length diameter ratio of 2-100.
Claim 11
Dependent Claim
54 words
A powder which comprises a fluorine-containing melt processable resin powder having a bulk density of 0.1 to 1.2 gms/cm 3 and an average particle diameter of 2-400 microns and 2-50 wt.% of carbon fibers having a length of less than 1000 microns, a diameter of 5-30 microns and a length diameter ratio of 2-100.
Claim 12
Dependent Claim
81 words
The powder of claim 9 wherein the synthetic resin powder has a bulk density of 0.3 to 0.8 g/cm 3 , a particle diameter of 5 - 250 microns and an angle of repose of less than 50°; and the carbon fibers have a diameter of 8 - 15 microns, a length to diameter ratio of 5 - 20 and the content of carbon fiber in the total mixture of synthetic resin and carbon fiber is from 5 to 30 wt.%.
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) | 1981-08-14 | 1982-02-13 | 1982-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-08-14 | 1986-02-13 | 1986-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-08-14 | 1990-02-13 | 1990-08-15 | $7700.00 | Window Closed / Lapsed |