Patent US4525535A successfully refreshed from Google Patents.
US4525535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous glycoluril thermosetting coating
Assignee: Akzo Nobel Paints LLC
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Filing: 1984-10-24
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Granted: 1985-06-25
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Expires: 2004-10-24
Abstract
Abstract A protective surface coating composition particularly useful for wood coating containing hydroxylated polyester, glycoluril, and emulsion polymer can be heat cured to produce cured films on substrates. The coating is particularly useful as wood coatings.
Inventors
- 👤 Gary P. Craun
- 👤 Henry J. DeGraaf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:06
CPC Classifications
C; C09; C09D; C09D161/00; C09D161/20; C09D161/26; C09D125/00; C09D125/02; C09D125/04; C09D125/08; C09D125/14; C09D167/00; C08; C08L; C08L61/00; C08L61/20; C08L61/26; C08L67/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
73 words
A surface coating composition containing a polymeric binder, the binder comprising on a weight basis: between about 2% and 50% hydroxylated polyester containing two or more hydroxyl groups per molecule and having a molecular between 200 and 1,000, and between 0% and 90% emulsion polymer, said emulsion polymer being emulsion copolymerized ethylenic monomers, and about 2 to 50% glycoluril, said binder composition being heat curable and thermosetting to form a cured coating film.
Claim 2
Dependent Claim
73 words
A surface coating composition containing a polymeric binder, the binder comprising on a weight basis: between about 2% and 50% hydroxylated polyester containing two or more hydroxyl groups per molecule and having a molecular between 200 and 1,000, and between 0% and 90% emulsion polymer, said emulsion polymer being emulsion copolymerized ethylenic monomers, and about 2 to 50% glycoluril, said binder composition being heat curable and thermosetting to form a cured coating film.
Claim 3
Dependent Claim
22 words
The coating composition in claim 1 wherein the emulsion polymer contains reactive functional monomer selected from acrylamide, carboxyl, or hydroxyl containing monomer.
Claim 4
Dependent Claim
38 words
The coating composition in claim 1 wherein the emulsion polymer contains at least 2% by weight compolymerized functional monomers comprising 1% to 10% acrylamide or methacrylamide monomer, 0.5% to 10% carboxyic monomer, and 0% to 10% alkylhydroxy monomer.
Claim 5
Dependent Claim
17 words
The composition in claim 1 wherein the hydroxylated polyester contains three or more hydroxyl groups per molecule.
Claim 6
Dependent Claim
31 words
The composition in claim 1 wherein the composition comprises on a weight basis between 20% and 50% hydroxylated polyester, between 5% and 20% glycoluril, and between 30% and 50% emulsion polymer.
Claim 7
Dependent Claim
15 words
The composition in claim 1 wherein the composition contains pigment to produce a pigmented coating.
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) | 1988-06-24 | 1988-12-24 | 1989-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-06-24 | 1992-12-24 | 1993-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-06-24 | 1996-12-24 | 1997-06-25 | $7700.00 | Window Closed / Lapsed |