US3666832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable vinyl chloride interpolymer systems
Assignee: Monsanto Co
•
Filing: 1970-07-17
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Granted: 1972-05-30
•
Expires: 1990-07-17
Abstract
Abstract Disclosed herein are compositions of etherified aminoplast resins and copolymers of vinyl chloride and hydroxy containing fumarate diesters cured with phosphoric acid compounds. These compositions when coated on substrates, display excellent strength characteristics and light stability.
Inventors
- 👤 Charles K Bump
- 👤 Frank J Hahn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:36
CPC Classifications
C; C09; C09D; C09D127/00; C09D127/02; C09D127/04; C09D127/06; C08; C08F; C08F8/00; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/52; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C09D135/00; C09D135/02; C08L61/00; C08L61/20
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
13 words
The composition of claim 1 wherein the phosphoric acid compound is phosphoric acid.
Claim 2
Dependent Claim
17 words
The composition of claim 1 wherein the etherified amino-plast formaldehyde condensate is a methylated methylolmelamino-formaldehyde condensation product.
Claim 3
Dependent Claim
17 words
The composition of claim 1 wherein the etherified amino-plast formaldehyde condensate is a butylated urea-formaldehyde condensation product.
Claim 4
Dependent Claim
12 words
The composition of claim 1 wherein the hydroxyfumarate is ethyl 2-hydroxyethyl fumarate.
Claim 5
Dependent Claim
24 words
The composition of claim 1 wherein the hydroxyfumarate is ethyl 2-hydroxyethyl fumarate present as 15 to 30 weight percent of the vinyl chloride copolymer.
Claim 6
Dependent Claim
27 words
The composition of claim 1 wherein cure is effected by baking at temperatures between 180* and 325* F. for times varying inversely from 60 to 10 minutes.
Claim 7
Dependent Claim
130 words
A cured coating composition comprising: A. from 80 to 95 parts by weight of a copolymer of vinyl chloride and ethyl 2-hydroxyethyl fumarate wherein the vinyl chloride is 75 weight percent of the copolymer; B. inversely 20 to 5 parts by weight of an etherified aminoplast formaldehyde condensate wherein the aminoplast is selected from the group consisting of melamine, urea and benzoguanamine and wherein the etherification is accomplished by reacting said aminoplast foamaldehyde condensate with a C1 to C4 alcohol; and C. from 0.0065 to 0.33 parts by weight per 100 parts of vinyl chloride copolymer of a phosphoric acid compound selected from the group consisting of phosphoric acid, alkyl esters of phosphoric acid and amine salts of phosphoric acid; wherein cure is effected at 250* F. for 30 minutes.
Claim 8
Dependent Claim
13 words
The composition of claim 8 wherein the phosphoric acid compound is phosphoric acid.
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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) | 1975-05-30 | 1975-11-29 | 1976-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-30 | 1979-11-29 | 1980-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-30 | 1983-11-29 | 1984-05-30 | $7700.00 | Window Closed / Lapsed |