Patent US4212922A successfully refreshed from Google Patents.
US4212922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Poly(arylene sulfide) resin coating
Assignee: Phillips Petroleum Co
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Filing: 1978-10-02
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Granted: 1980-07-15
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Expires: 1998-10-02
Abstract
Abstract The adhesion of poly(arylene sulfide) coatings to metal substrates is improved by incorporating an effective amount of finely divided manganese dioxide into a poly(arylene sulfide) primer coat to prime the metal substrate. The primer coat can subsequently be coated with a poly(arylene sulfide) coating or with any other suitable finish coating which will adhere to the primer coat.
Inventors
- 👤 Dale O. Tieszen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:08
CPC Classifications
C; C09; C09D; C09D181/00; C09D181/02; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265; Y10T428/269; Y10T428/31504; Y10T428/31533; Y10T428/31678; Y10T428/31692
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
61 words
A coated article comprising: a metal substrate, a cured first coating adhered to said metal substrate comprising poly(arylene sulfide) and an effective amount ranging from about 5 to 70 weight percent of said first coating of manganese dioxide suitable for improving adhesion of poly(arylene sulfide) to said substrate, and a cured finish coating comprising poly(arylene sulfide) applied to said first coating.
Claim 2
Dependent Claim
61 words
A coated article comprising: a metal substrate, a cured first coating adhered to said metal substrate comprising poly(arylene sulfide) and an effective amount ranging from about 5 to 70 weight percent of said first coating of manganese dioxide suitable for improving adhesion of poly(arylene sulfide) to said substrate, and a cured finish coating comprising poly(arylene sulfide) applied to said first coating.
Claim 3
Dependent Claim
27 words
An article according to claim 1 wherein manganese dioxide is in finely divided form having a particle size ranging from about 40 to less than 100 mesh.
Claim 4
Dependent Claim
17 words
An article according to claim 1 wherein the first coating and the finish coating is poly(phenylene sulfide).
Claim 5
Dependent Claim
48 words
An iron-containing substrate coated with superposed layers of (a) at least one layer of poly(arylene sulfide) containing from about 5 to about 70 weight percent manganese dioxide bonded to said substrate and (b) at least one layer of a poly(arylene sulfide) resin bonded to a layer of (a).
Claim 6
Dependent Claim
48 words
An iron-containing substrate coated with superposed layers of (a) at least one layer of poly(arylene sulfide) containing from about 5 to about 70 weight percent manganese dioxide bonded to said substrate and (b) at least one layer of a poly(arylene sulfide) resin bonded to a layer of (a).
Claim 7
Dependent Claim
31 words
An article according to claim 4 wherein the thickness of each layer of (a) is about 0.1 to about 5 mils, and (b) is about 1 mil to about 30 mils.
Claim 8
Dependent Claim
17 words
An article according to claim 4 wherein the poly(arylene sulfide) in (a) and (b) is poly(phenylene sulfide).
Claim 9
Dependent Claim
15 words
An article according to claim 4 wherein (b) contains at least one filler and/or pigment.
Claim 10
Dependent Claim
47 words
An arylene sulfide polymer coated structure comprising (a) an iron-containing substrate having bonded thereto (b) a layer of poly(arylene sulfide) containing from about 30 to about 60 weight percent finely divided manganese dioxide and (c) a layer of poly(arylene sulfide) cured and bonded to said layer (b).
Claim 11
Dependent Claim
47 words
An arylene sulfide polymer coated structure comprising (a) an iron-containing substrate having bonded thereto (b) a layer of poly(arylene sulfide) containing from about 30 to about 60 weight percent finely divided manganese dioxide and (c) a layer of poly(arylene sulfide) cured and bonded to said layer (b).
Claim 12
Dependent Claim
32 words
An article according to claim 8 wherein (a) is a layer of about 0.1 mil to about 5 mils and (b) is a layer of about 1 mil to about 30 mils.
Claim 13
Dependent Claim
17 words
An article according to claim 8 wherein said poly(arylene sulfide) in (b) and (c) is poly(phenylene sulfide).
Claim 14
Independent Claim
79 words
A method for coating an iron-containing surface with a poly(arylene sulfide) coating comprising applying to said surface a first coating composition comprising poly(arylene sulfide) and an effective amount ranging from about 5 to 70 weight percent of finely divided manganese dioxide for improving adhesion on said surface, heating the thus coated iron-containing surface to cure said first coating composition, applying a second coating composition comprising poly(arylene sulfide) to the cured first coating composition and curing said second coating composition.
Claim 15
Independent Claim
79 words
A method for coating an iron-containing surface with a poly(arylene sulfide) coating comprising applying to said surface a first coating composition comprising poly(arylene sulfide) and an effective amount ranging from about 5 to 70 weight percent of finely divided manganese dioxide for improving adhesion on said surface, heating the thus coated iron-containing surface to cure said first coating composition, applying a second coating composition comprising poly(arylene sulfide) to the cured first coating composition and curing said second coating composition.
Claim 16
Dependent Claim
25 words
A method according to claim 11 wherein the concentration of manganese dioxide in said coating composition ranges from about 30 to about 60 weight percent.
Claim 17
Dependent Claim
19 words
A method according to claim 11 wherein said second coating composition additionally contains at least one filler and/or pigment.
Claim 18
Dependent Claim
16 words
A method according to claim 11 wherein the poly(arylene sulfide) in both coatings is poly(phenylene sulfide).
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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) | 1983-07-15 | 1984-01-14 | 1984-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-07-15 | 1988-01-14 | 1988-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-07-15 | 1992-01-14 | 1992-07-15 | $7700.00 | Window Closed / Lapsed |