Patent US3787232A successfully refreshed from Google Patents.
US3787232A
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Low temperature curing polymers used as coatings for fibrous materials
Assignee: Goodrich Corp
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Filing: 1973-03-19
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Granted: 1974-01-22
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Expires: 1993-03-19
Abstract
Abstract Vinylidene halide polymers capable of being cured at low temperatures are prepared by the emulsion polymerization of one or more vinylidene halide monomers with a carboxylic acid monomer and an N-alkylol amide monomer in an aqueous system. The resulting polymers develop optimum or near optimum physical properties upon curing at room temperature or at temperatures up to about 225* F. These polymers may be used as coatings for fibrous materials.
Inventors
- 👤 B Mikofalvy
- 👤 D Knechtges
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:06
CPC Classifications
C; C08; C08F; C08F220/00; C08F220/02; C08F220/04; C08F220/06; C08F214/00; C08F214/02; C08F214/04; C08F214/06; C08F214/08; D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/285; D06M15/29; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/34; D21H17/38; D21H17/39; D21H19/00; D21H19/36; D21H19/44; D21H19/56; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2762; Y10T442/2861; Y10T442/2926; Y10T442/2934
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
21 words
An article of claim 1 wherein the copolymer contains 40 to 90 percent by weight of vinyl chloride or vinylidene chloride.
Claim 2
Dependent Claim
36 words
An article of claim 2 wherein there is from 0.5 to 5 percent by weight of (2) an Alpha , Beta -olefinically unsaturated mono-carboxylic acid and from 0.5 to 3 percent by weight of (3) amide.
Claim 3
Dependent Claim
19 words
An article of claim 2 wherein the copolymer contains an ester of acrylic or methacrylic acid of the formula
Claim 4
Dependent Claim
54 words
An article of claim 4 wherein the copolymer contains uP to 40 percent by weight of a monomer selected from the group consisting of vinyl acetate, acrylonitrile, methacrylonitrile, acrylamide, methacrylamide, styrene and bis( Beta -chloroethyl)vinyl phosphonate, and (2) is an Alpha , Beta -olefinically unsaturated monocarboxylic acid containing from 3 to 6 carbon atoms.
Claim 5
Dependent Claim
33 words
An article of claim 3 wherein (2) is acrylic acid, (3) is N-methylol acrylamide and the combined weight of (2) and (3) is below about 50 percent by weight of the total monomers.
Claim 6
Dependent Claim
18 words
An article of claim 6 wherein the article comprises paper saturated with an aqueous dispersion of the copolymer.
References Cited (Backward Citations)
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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) | 1977-01-21 | 1977-07-23 | 1978-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-21 | 1981-07-23 | 1982-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-21 | 1985-07-23 | 1986-01-22 | $7700.00 | Window Closed / Lapsed |