Patent US3622376A successfully refreshed from Google Patents.
US3622376A
Expired / Lapsed
US
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TiO{11 {0 IN POLY(ARYLENE SULFIDE) FOR COATING COMPOSITION
Assignee: Phillips Petroleum Co
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Filing: 1968-08-15
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Granted: 1971-11-23
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Expires: 1988-08-15
Abstract
Abstract Normally solid poly(arylene sulfide) containing about 0.5 to about 50 weight percent TiO2 is applied to a substrate to form a leveled coating without pinholes which is intimately bonded to the substrate. Preferably, the polymer-TiO2 mixture is applied as a slurry in a carrier liquid such as ethylene glycol, methyl alcohol, water, toluene, and the like, or mixtures thereof, and thereafter heated to form a coating.
Inventors
- 👤 Dale O Tieszen
- 👤 James T Edmonds Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:00
CPC Classifications
C; C09; C09D; C09D181/00; C09D181/02; Y; Y10; Y10T; Y10T428/00; Y10T428/31; Y10T428/31504; Y10T428/31533; Y10T428/31678
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
30 words
A coated article according to claim 1 wherein said coating comprises in addition 0.5 to 50 weight percent, based on the weight of said poly(arylene sulfide) of a fluorocarbon polymer.
Claim 2
Dependent Claim
19 words
A coated article according to claim 1 wherein said poly(arylene sulfide) is poly(phenylene sulfide) and said substrate is steel.
Claim 3
Dependent Claim
15 words
A coated article according to claim 3 wherein said TiO2 is in the rutile form.
Claim 4
Dependent Claim
25 words
A coated article according to claim 1 wherein said poly(arylene sulfide) is present in an amount within the range of 10 to 35 weight percent.
Claim 5
Dependent Claim
18 words
A coated article according to claim 5 wherein said article has reverse-impact strength of greater than 160 in./lbs.
Claim 6
Dependent Claim
72 words
A coating process comprising: applying as a coating a substrate a formulation consisting essentially of normally solid poly(arylene sulfide) and between 10 and 50 weight percent TiO2 based on the total weight of the poly(arylene sulfide) and TiO2 and heating said coating in the presence of oxygen to a temperature of 500*-800* F. for a time within the range of 1 minute to 5 hours to fuse and cure said poly(arylene sulfide).
Claim 7
Dependent Claim
24 words
A process according to claim 7 wherein said poly(arylene sulfide) and TiO2 formulation is applied in the form of a slurry in a diluent.
Claim 8
Dependent Claim
29 words
A process according to claim 7 wherein said formulation comprises in addition 0.5 to 50 weight percent, based on the weight of said poly(arylene sulfide), of a fluorocarbon polymer.
Claim 9
Dependent Claim
24 words
A method according to claim 7 wherein said titanium dioxide is present in an amount within the range of 10 to 35 weight percent.
Claim 10
Dependent Claim
13 words
A process according to claim 7 wherein said poly(arylene sulfide) is poly(phenylene sulfide).
Claim 11
Dependent Claim
11 words
A process according to claim 11 wherein said substrate is steel.
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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) | 1974-11-22 | 1975-05-24 | 1975-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-22 | 1979-05-24 | 1979-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-22 | 1983-05-24 | 1983-11-23 | $7700.00 | Window Closed / Lapsed |