US4237039A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Salts of arylalkanoic acids as corrosion inhibitors for poly(arylene sulfide)s
Assignee: Phillips Petroleum Co
•
Filing: 1978-12-18
•
Granted: 1980-12-02
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Expires: 1998-12-18
Abstract
Abstract Poly(arylene sulfide) coating compositions are described comprising a mixture of a poly(arylene sulfide) and a salt of an arylalkanoic acid in an aqueous medium.
Inventors
- 👤 Jennings P. Blackwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:54
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/098; C09; C09D; C09D181/00; C09D181/02; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31533
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
28 words
A poly(arylene sulfide) coating composition which comprises (a) an arylene sulfide polymer, (b) an ammonium or alkali metal salt of an arylalkanoic acid, and (c) an aqueous medium.
Claim 2
Dependent Claim
28 words
A poly(arylene sulfide) coating composition which comprises (a) an arylene sulfide polymer, (b) an ammonium or alkali metal salt of an arylalkanoic acid, and (c) an aqueous medium.
Claim 3
Dependent Claim
57 words
A composition according to claim 1 in which the salt of an arylalkanoic acid is a compound having the formula RCO 2 M, where R is selected from the group of unsubstituted and alkyl-substituted aralkyl radicals having 7-20 carbon atoms and M is a member of the group consisting of ammonium, lithium, sodium, potassium, rubidium, and cesium.
Claim 4
Dependent Claim
34 words
A composition according to claim 1 in which the poly(arylene sulfide) comprises 10-60 weight percent of the total composition and the salt of an arylalkanoic acid comprises 0.05-10 weight percent of the total composition.
Claim 5
Dependent Claim
36 words
A composition according to claim 2 in which the poly(arylene sulfide) comprises 20-40 weight percent of the total composition and the compound having the formula RCO 2 M comprises 0.2-3 weight percent of the total composition.
Claim 6
Dependent Claim
15 words
A composition according to claim 1 in which the poly(arylene sulfide) is a poly(phenylene sulfide).
Claim 7
Dependent Claim
11 words
A composition according to claim 2 in which M is ammonium.
Claim 8
Dependent Claim
19 words
A composition according to claim 4 in which the compound having the formula RCO 2 M is ammonium phenylacetate.
Claim 9
Dependent Claim
27 words
A composition according to claim 4 in which the compound having the formula RCO 2 M is ammonium phenylacetate and the poly(arylene sulfide) is a poly(phenylene sulfide).
Claim 10
Dependent Claim
9 words
An article coated with the composition of claim 1.
Claim 11
Dependent Claim
9 words
The article of claim 9 comprising an iron-containing substrate.
Claim 12
Dependent Claim
22 words
The article of claim 9 in which the coating composition comprises a normally solid poly(arylene sulfide), ammonium phenylacetate, and an aqueous medium.
Claim 13
Dependent Claim
51 words
A process for inhibiting the corrosion of metal during coating with poly(arylene sulfide) which comprises applying the coating composition of claim 1 to a metal substrate, removing the aqueous medium, and heating the remaining composition to cure the poly(arylene sulfide), thus forming a smooth coating of poly(arylene sulfide) on the substrate.
Claim 14
Dependent Claim
16 words
The process of claim 12 in which the metal substrate is an iron or iron-containing substrate.
Claim 15
Dependent Claim
22 words
The process of claim 12 in which the coating composition comprises a normally solid poly(phenylene sulfide), ammonium phenylacetate, and an aqueous medium.
References Cited (Backward Citations)
US2629649A
Cited
US3354129A
Cited
US3449262A
Cited
US3622376A
Cited
US3634125A
Cited
US3701665A
Cited
US3717620A
Cited
US4064084A
Cited
US3919177A
Cited
US4017450A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-12-02 | 1984-06-02 | 1984-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-02 | 1988-06-02 | 1988-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-02 | 1992-06-02 | 1992-12-02 | $7700.00 | Window Closed / Lapsed |