Patent US4045399A successfully refreshed from Google Patents.
US4045399A
Expired / Lapsed
US
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Curable aqueous coating composition
Assignee: Artience Co Ltd
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Filing: 1976-01-30
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Granted: 1977-08-30
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Expires: 1996-01-30
Abstract
Abstract A curable aqueous coating composition in which dicyandiamide or a salt of guanidine is mixed and dissolved in an aqueous solution of a salt of a copolymer of an acrylic monomer mixture containing an unsaturated carboxylic acid monomer and a hydroxyalkyl acrylate or methacrylate monomer.
Inventors
- 👤 Hiroo Suzuki
- 👤 Isao Takada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:06
CPC Classifications
C; C09; C09D; C09D133/00; C09D133/04; C09D133/06; C09D133/062; C09D133/066; C08; C08K; C08K5/00; C08K5/16; C08K5/29; C08K5/31; C09D133/02; C09D133/14
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
111 words
A curable aqueous coating composition comprising dicyandiamide and/or a water soluble salt of guanidine dissolved in an aqueous solution of a water soluble salt of a copolymer comprising about 5 to about 30 wt% of one or more unsaturated carboxylic acid monomers, about 10 to about 50 wt% of one or more hydroxyalkyl (alkyl carbons: 2-8) acrylate or methacrylate monomers and about 20 to about 85 wt% of one or more (C 1 -C 18 ) alkyl acrylate monomers, where the amount of the dicyandiamide and/or the water soluble salt of guanidine is about 0.1 to about 1.0 mol equivalent per 1 mol of hydroxyl group containing monomers in the copolymer.
Claim 2
Dependent Claim
111 words
A curable aqueous coating composition comprising dicyandiamide and/or a water soluble salt of guanidine dissolved in an aqueous solution of a water soluble salt of a copolymer comprising about 5 to about 30 wt% of one or more unsaturated carboxylic acid monomers, about 10 to about 50 wt% of one or more hydroxyalkyl (alkyl carbons: 2-8) acrylate or methacrylate monomers and about 20 to about 85 wt% of one or more (C 1 -C 18 ) alkyl acrylate monomers, where the amount of the dicyandiamide and/or the water soluble salt of guanidine is about 0.1 to about 1.0 mol equivalent per 1 mol of hydroxyl group containing monomers in the copolymer.
Claim 3
Dependent Claim
19 words
A composition as defined in claim 1, wherein the hydroxyalkyl acrylate or methacrylate is 2-hydroxyethyl acrylate or 2-hydroxyethyl methacrylate.
Claim 4
Dependent Claim
19 words
A composition as defined in claim 1, wherein the hydroxyalkyl acrylate or methacrylate is 2-hydroxypropyl acrylate or 2-hydroxypropyl methacrylate.
Claim 5
Dependent Claim
30 words
A composition as defined in claim 1, wherein the hydroxyalkyl acrylate or methacrylate is a combination of (1) 2-hydroxyethyl acrylate or 2-hydroxyethyl methacrylate with (2) 2-hydroxypropyl acrylate or 2-hydroxypropyl methacrylate.
Claim 6
Dependent Claim
18 words
A composition as defined in claim 1, wherein the salt of guanidine is guanidine carbonate or guanidine hydrochloride.
Claim 7
Dependent Claim
20 words
A composition as defined in claim 1, wherein the unsaturated carboxylic acid is acrylic acid, methacrylic acid or itaconic acid.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-08-29 | 1981-02-28 | 1981-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-29 | 1985-02-28 | 1985-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-29 | 1989-02-28 | 1989-08-30 | $7700.00 | Window Closed / Lapsed |