US3920595A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High solids alkyd coating compositions
Assignee: PPG Industries Inc
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Filing: 1974-04-10
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Granted: 1975-11-18
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Expires: 1994-04-10
Abstract
Abstract High solids coating compositions, the vehicle comprising an alkyd resin, a reactive liquid and a crosslinking agent. The reactive liquid and the alkyd resin are crosslinked with the crosslinking agent. Reactive liquids used in the instant composition must have at least one hydroxyl group. Crosslinking agents such as aminoplast resins and isocyanato-terminated compounds are useful. These high solids coating compositions provide hard, durable and attractive coatings on various articles such as steel doors, furnace cabinets, metal furniture, and the like.
Inventors
- 👤 Carl C Anderson
- 👤 Roger M Christenson
- 👤 Egon Fritz Wiegmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:27
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/65; C08G18/66; C08G18/6633; C08G18/6637; C08G18/2805; C08G18/2815; C08G18/282; C08G18/2825; C08G18/40; C08G18/4009; C08K; C08K5/00; C08K5/04; C08K5/05; C08K5/16; C08K5/29; C08L; C08L61/00; C08L61/20; C08L63/00; C08L67/00; C08L67/08; C08L71/00; C08L75/00; C08L75/04; C09; C09D; C09D167/00; C09D167/08; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31515; Y10T428/31522
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
125 words
A COATING COMPOSITION HAVING A SOLIDS CONTENT OF AT LEAST 70 PERCENT BY WEIGHT, THE VEHICLE COMPRISING BLEND OF: A. FROM ABOUT 10 T ABOUT 70 PERCENT BY WEIGHT OF AN ALKYD RESIN COMPRISING THE REACTION PRODUCT OF A POLYFUNCTIONAL ALCOHOL. A POLYFUNCTIONAL ACID OR ACID ANHYDRIDE AND AN OIL OR OIL FATTY ACID, B. FROM ABOUT 25 TO ABOUT 70 PERCENT BY WEIGHT OF A REACTIVE LIQUID HAVING TWO OR MORE HYDROXYL GROUPS, SAID REACTIVE LIQUID BEING SELECTED FROM THE GROUP CONSISTING OF POLYETHER POLYLS, POLYESTER POLYOLS, POLYHYDRIC ALCOHOLS AND MIXTURES THEREOF, AND C. FROM ABOUT 5 TO ABOUT 50 PERCENT BY EIGHT OF A CROSSLINKING AGENT, SAID CROSSLINKING AGENT BEING SELECTED FROM THE GROUP CONSISTING OF AMINOPLAST RESINS, EXPOXY RESINS AND ISOCYANATE-TERMINATED COMPOUNDS.
Claim 2
Dependent Claim
125 words
A COATING COMPOSITION HAVING A SOLIDS CONTENT OF AT LEAST 70 PERCENT BY WEIGHT, THE VEHICLE COMPRISING BLEND OF: A. FROM ABOUT 10 T ABOUT 70 PERCENT BY WEIGHT OF AN ALKYD RESIN COMPRISING THE REACTION PRODUCT OF A POLYFUNCTIONAL ALCOHOL. A POLYFUNCTIONAL ACID OR ACID ANHYDRIDE AND AN OIL OR OIL FATTY ACID, B. FROM ABOUT 25 TO ABOUT 70 PERCENT BY WEIGHT OF A REACTIVE LIQUID HAVING TWO OR MORE HYDROXYL GROUPS, SAID REACTIVE LIQUID BEING SELECTED FROM THE GROUP CONSISTING OF POLYETHER POLYLS, POLYESTER POLYOLS, POLYHYDRIC ALCOHOLS AND MIXTURES THEREOF, AND C. FROM ABOUT 5 TO ABOUT 50 PERCENT BY EIGHT OF A CROSSLINKING AGENT, SAID CROSSLINKING AGENT BEING SELECTED FROM THE GROUP CONSISTING OF AMINOPLAST RESINS, EXPOXY RESINS AND ISOCYANATE-TERMINATED COMPOUNDS.
Claim 3
Dependent Claim
22 words
The composition of claim 1 wherein the alkyd resin is the reaction product of glycerine, phthalic anhydride, and tall oil fatty acid.
Claim 4
Dependent Claim
21 words
The composition of claim 1 wherein the reactive liquid is an adduct of glycerine and propylene oxide having three hydroxyl groups.
Claim 5
Dependent Claim
20 words
The composition of claim 1 wherein the reactive liquid is a polyoxypropylene derivative of propylene glycol having two hydroxyl groups.
Claim 6
Dependent Claim
14 words
The composition of claim 1 wherein the crosslinking agent is an amine-aldehyde condensation product.
Claim 7
Dependent Claim
12 words
The composition of claim 5 wherein the amine-aldehyde condensation product is hexakis(methoxymethyl)melamine.
Claim 8
Dependent Claim
8 words
The composition of claim 1 further containing pigment.
Claim 9
Dependent Claim
11 words
The composition of claim 7 wherein the pigment is titanium dioxide.
Claim 10
Dependent Claim
13 words
The composition of claim 1 wherein the reactive liquid is a polyether polyol.
Claim 11
Dependent Claim
13 words
The composition of claim 1 wherein the reactive liquid is a polyester polyol.
Claim 12
Independent Claim
168 words
A method of preparing a coating composition having a solids content of at least 70 percent by weight comprising the steps of: A. reacting a polyfunctional alcohols, a polyfunctional acid or acid anhydride, and an oil or oil fatty acid to produce an alkyd resin having a solids content of from about 95 to about 100 percent by weight; B. blending from about 10 percent to about 70 percent by weight of the alkyd resin produced in step (A) with from about 25 percent to about 70 percent by weight of a reactive liquid having two or more hydroxyl groups, said reactive liquid being selected from the group consisting of polyether polyols, polyester polyols, polyhydric alcohols, and mixtures thereof to produce a mixture of said alkyd resin and said reactive liquid; and C. blending the mixture produced in step (B) with from about 5 percent to about 50 percent by weight of a crosslinking agent selected from the group consisting of aminoplast resins, epoxy resins and isocyanate-terminated compounds.
Claim 13
Independent Claim
168 words
A method of preparing a coating composition having a solids content of at least 70 percent by weight comprising the steps of: A. reacting a polyfunctional alcohols, a polyfunctional acid or acid anhydride, and an oil or oil fatty acid to produce an alkyd resin having a solids content of from about 95 to about 100 percent by weight; B. blending from about 10 percent to about 70 percent by weight of the alkyd resin produced in step (A) with from about 25 percent to about 70 percent by weight of a reactive liquid having two or more hydroxyl groups, said reactive liquid being selected from the group consisting of polyether polyols, polyester polyols, polyhydric alcohols, and mixtures thereof to produce a mixture of said alkyd resin and said reactive liquid; and C. blending the mixture produced in step (B) with from about 5 percent to about 50 percent by weight of a crosslinking agent selected from the group consisting of aminoplast resins, epoxy resins and isocyanate-terminated compounds.
Claim 14
Dependent Claim
18 words
The method of claim 11 further comprising the step of adding pigment to the composition after step (C).
Claim 15
Dependent Claim
13 words
The method of claim 11 wherein the pigment is added after step (B).
Claim 16
Dependent Claim
22 words
The method of claim 11 wherein the alkyd resin comprises the reaction product of glycerine, phthalic anhydride, and tall oil fatty acid.
Claim 17
Dependent Claim
21 words
The method of claim 11 wherein the reactive liquid is an adduct of glycerine and propylene oxide having three hydroxyl groups.
Claim 18
Dependent Claim
20 words
The method of claim 11 wherein the reactive liquid is a polyoxypropylene derivative of propylene glycol having two hydroxyl groups.
Claim 19
Dependent Claim
11 words
The method of claim 11 wherein the crosslinking agent is hexakis(methoxymethyl)melamine.
Claim 20
Dependent Claim
13 words
The method of claim 11 wherein the reactive liquid is a polyether polyol.
Claim 21
Dependent Claim
13 words
The method of claim 11 wherein the reactive liquid is a polyester polyol.
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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) | 1978-11-17 | 1979-05-19 | 1979-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-17 | 1983-05-19 | 1983-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-17 | 1987-05-19 | 1987-11-18 | $7700.00 | Window Closed / Lapsed |