US3644261A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating compositions containing fluorocarbon polymer and aluminum borophosphate
Assignee: EIDP Inc
•
Filing: 1969-11-03
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Granted: 1972-02-22
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Expires: 1989-11-03
Abstract
Abstract A composition for priming a surface to improve the adhesion of a fluorocarbon polymer topcoat. The composition contains about 5090 percent fluorocarbon polymer by weight and 10-50 percent aluminum borophosphate by weight and a liquid carrier.
Inventors
- 👤 Clifford Hugh Strolle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:33
CPC Classifications
C; C09; C09D; C09D127/00; C09D127/02; C09D127/12
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
30 words
The composition of claim 1 containing from 65 percent through 75 percent fluorocarbon polymer, 25 percent through 35 percent aluminum borophosphate and from 5 percent through 50 percent liquid carrier.
Claim 2
Dependent Claim
11 words
The composition of claim 1 wherein the fluorocarbon polymer is polytetrafluoroethylene.
Claim 3
Dependent Claim
11 words
The composition of claim 2 wherein the fluorocarbon polymer is polytetrafluoroethylene.
Claim 4
Dependent Claim
43 words
The composition of claim 1 wherein the aluminum borophosphate is in the ratio by weight of 18.2 percent to 21.4 percent aluminum oxide, 8.6 percent to 11.6 percent boric anhydride, and 70 percent phosphorus pentoxide based on the total amount of aluminum borophosphate.
Claim 5
Dependent Claim
11 words
The composition of claim 1 wheRein the liquid carrier is water.
Claim 6
Dependent Claim
11 words
The composition of claim 2 wherein the liquid carrier is water.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-21 | 1975-08-23 | 1976-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-21 | 1979-08-23 | 1980-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-21 | 1983-08-23 | 1984-02-22 | $7700.00 | Window Closed / Lapsed |