Patent US3686360A successfully refreshed from Google Patents.
US3686360A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Condensed linear polyesters and coatings containing same
Assignee: Sherwin Williams Co
•
Filing: 1970-10-08
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Granted: 1972-08-22
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Expires: 1990-10-08
Abstract
Abstract Noncrystalline condensation products of normally crystalline linear polyesters having hydroxyl functionality with alkylated alkylol amines or amides are provided, as well as coating compositions containing such condensation products.
Inventors
- 👤 Arthur L Cunningham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:01
CPC Classifications
C; C09; C09D; C09D167/00; C09D167/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
16 words
A modified linear polyester in accordance with claim 1 wherein the phenylene dicarboxylic acid is iso-phthalic.
Claim 2
Dependent Claim
26 words
A modified linear polyester in accordance with claim 1 wherein the phenylene dicarboxylic acid component is iso-phthalic acid and the aliphatic dicarboxylic acid is adipic acid.
Claim 3
Dependent Claim
16 words
A modified linear polyester in accordance with claim 1 wherein the dihydric alcohol is neopentyl glycol.
Claim 4
Dependent Claim
17 words
A modified linear polyester in accordance with claim 1 wherein the alkylated melamine is hexakis (methoxymethyl) melamine.
Claim 5
Dependent Claim
18 words
A modified linear polyester in accordance with claim 1 wherein the alkylated alkylol melamine is tetrakis (methoxymethyl) benzoguanamine.
Claim 6
Dependent Claim
19 words
A modified linear polyester in accordance with claim 1 wherein a monobasic acid is included and is monoisobutyl phthalate.
Claim 7
Dependent Claim
19 words
A modified linear polyester in accordance with claim 1 wherein a monobasic acid is included and is benzoic acid.
Claim 8
Dependent Claim
39 words
A modified linear polyester in accordance with claim 1 wherin the phenylene dicarboxylic acid is iso-phthalic acid, the aliphatic dicarboxylic acid is adipic acid; the dihydric alcohol is neopentyl glycol; and the alkylated alkylol melamine is hexakis (methoxymethyl) melamine.
References Cited (Backward Citations)
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Cited
US2462658A
Cited
GB815179A
Cited
US2915486A
Cited
US3108089A
Cited
US3502557A
Cited
US3549577A
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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) | 1975-08-22 | 1976-02-21 | 1976-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-22 | 1980-02-21 | 1980-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-22 | 1984-02-21 | 1984-08-22 | $7700.00 | Window Closed / Lapsed |