US4609706A
Expired / Lapsed
US
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High solids coatings using unsaturated monoisocyanate adducts of alkyd resins
Assignee: Akzo Nobel Paints LLC
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Filing: 1985-03-27
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Granted: 1986-09-02
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Expires: 2005-03-27
Abstract
Abstract High solids alkyd resin coatings are prepared by reacting at least a portion of the available hydroxyl groups on a resin with an ethylenically unsaturated monoisocyanate monomer. The new products, useful both as the major vehicle resin in high solids coatings and as a cure modifier for oxidatively curable alkyd, polyester and acrylic resins, impart improved drying and weathering properties to coatings while maintaining low paint viscosity.
Inventors
- 👤 Daniel Bode
- 👤 Henry J. DeGraaf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:49
CPC Classifications
C; C09; C09D; C09D133/00; C09D133/04; C09D133/06; C09D133/062; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/42; C08G18/4288; C08G18/70; C08G18/81; C08G18/8108; C09D167/00; C09D167/08; C08L; C08L2205/00; C08L2205/02; C08L33/00; C08L33/04; C08L33/06; C08L33/062; C08L67/00; C08L67/08
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
162 words
An oxidatively curable coating composition comprising a film-forming drying oil modified alkyd or acrylic resin and from about 5 to about 40 weight percent basis said resin of a cure modifier which comprises the reaction product of (a) an oligomer or polymer selected from the group consisting of acrylic, polyester, urethane, polyether, and polyepoxide, said oligomer or polymer having hydroxyl functional groups adapted to react with an ethylenically unsaturated isocyanate monomer as set forth in (b) to form appendages having both urethane linkages and ethylenical unsaturation; and (b) a bifunctional reactive monomer containing both an ethylenically unsaturated moiety and one isocyanate functionality; said monomer selected from the group consisting of unsaturated aralkyl isocyanate, isocyanatoalkyl acrylate, and isocyanatoalkyl methacrylate; wherein said product has chain appendages having both urethane and ethylenic unsaturation, has a number average molecular weight from about 400 to 1,600 and contains from about 0.2 to 6 ethylenically unsaturated groups per mole and less than 0.1% by weight free isocyanate groups.
Claim 2
Dependent Claim
162 words
An oxidatively curable coating composition comprising a film-forming drying oil modified alkyd or acrylic resin and from about 5 to about 40 weight percent basis said resin of a cure modifier which comprises the reaction product of (a) an oligomer or polymer selected from the group consisting of acrylic, polyester, urethane, polyether, and polyepoxide, said oligomer or polymer having hydroxyl functional groups adapted to react with an ethylenically unsaturated isocyanate monomer as set forth in (b) to form appendages having both urethane linkages and ethylenical unsaturation; and (b) a bifunctional reactive monomer containing both an ethylenically unsaturated moiety and one isocyanate functionality; said monomer selected from the group consisting of unsaturated aralkyl isocyanate, isocyanatoalkyl acrylate, and isocyanatoalkyl methacrylate; wherein said product has chain appendages having both urethane and ethylenic unsaturation, has a number average molecular weight from about 400 to 1,600 and contains from about 0.2 to 6 ethylenically unsaturated groups per mole and less than 0.1% by weight free isocyanate groups.
Claim 3
Dependent Claim
12 words
The composition of claim 1 wherein the oligomer is a polyester resin.
Claim 4
Dependent Claim
14 words
The composition of claim 2 wherein the bifunctional monomer is an unsaturated aralkyl isocyanate.
Claim 5
Dependent Claim
12 words
The composition of claim 3 wherein the bifunctional monomer is meta-isopropenyl-alpha,alpha-dimethylbenzyl isocyanate.
Claim 6
Dependent Claim
12 words
The composition of claim 2 wherein the oligomer is an alkyd resin.
Claim 7
Dependent Claim
9 words
A substrate coated with the composition of claim 1.
Claim 8
Dependent Claim
128 words
A high solids oxidatively curable coating composition which comprises as the principal resin component at least 50 weight percent of the reaction product of (a) a low molecular weight drying oil alkyd having hydroxyl functional groups adapted to react with an ethylenically unsaturated isocyanate monomer as set forth in (b) to form appendages having both urethane linkages and ethylenical unsaturation; and (b) a bifunctional reactive monomer containing both an ethylenically unsaturated moiety and one isocyanate functionality; said monomer selected from the group consisting of unsaturated aralkyl isocyanate, isocyanatoalkyl acrylate and isocyanatoalkyl methacrylate; wherein said product has a number average molecular weight of from about 400 to 1,600, and contains from about 0.2 to 6 ethylenically unsaturated groups per mole and less than 0.1% by weight free isocyanate groups.
Claim 9
Dependent Claim
128 words
A high solids oxidatively curable coating composition which comprises as the principal resin component at least 50 weight percent of the reaction product of (a) a low molecular weight drying oil alkyd having hydroxyl functional groups adapted to react with an ethylenically unsaturated isocyanate monomer as set forth in (b) to form appendages having both urethane linkages and ethylenical unsaturation; and (b) a bifunctional reactive monomer containing both an ethylenically unsaturated moiety and one isocyanate functionality; said monomer selected from the group consisting of unsaturated aralkyl isocyanate, isocyanatoalkyl acrylate and isocyanatoalkyl methacrylate; wherein said product has a number average molecular weight of from about 400 to 1,600, and contains from about 0.2 to 6 ethylenically unsaturated groups per mole and less than 0.1% by weight free isocyanate groups.
Claim 10
Dependent Claim
35 words
The composition of claim 7 wherein said composition is a resin reacted with an unsaturated aralkyl isocyanate and wherein said alkyd resin has a number average molecular weight of from about 800 to about 1600.
Claim 11
Dependent Claim
11 words
The composition of claim 8 wherein the isocyanate is metaisopropenyl-alpha,alpha-dimethylbenzyl isocyanate.
Claim 12
Dependent Claim
11 words
A substrate coated with the high solids composition of claim 9.
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) | 1989-09-01 | 1990-03-03 | 1990-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-09-01 | 1994-03-03 | 1994-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-09-01 | 1998-03-03 | 1998-09-02 | $7700.00 | Window Closed / Lapsed |