US4612054A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbodiimide driers for resin coating compositions
Assignee: Ashland LLC
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Filing: 1985-03-18
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Granted: 1986-09-16
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Expires: 2005-03-18
Abstract
Abstract New coating compositions having controllable drying time and capable of drying rapidly at ambient temperatures without substantial evolution of gaseous by-products caused by conventional driers such as melamines or urea formaldehyde comprising carbodiimides or homologies of carbodiimides together with organic carboxylates. These compositions are particularly useful in providing fast-drying long-oil alkyds which form coatings exhibiting excellent hardness, toughness and resistance to humidity and salt spray.
Inventors
- 👤 Ray C. Hamon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:02
CPC Classifications
C; C09; C09F; C09F9/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31529; Y10T428/31551; Y10T428/31605; Y10T428/31678; Y10T428/31681; Y10T428/31688; Y10T428/31692
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
118 words
A controllable drying-time, water-based or organic solvent-based alkyd composition which dries rapidly at ambient temperature without substantial evolution of gaseous by-products and is capable of application and flow on a solid substrate, comprising: (A) about 0.1 to 40.0% by weight of a drying agent selected from the group comprising carbodiimides, polycarbodiimides and substituted polycarbodiimides; (B) about 60 to 99.5% by weight of an organic carboxylate selected from the group comprising alkyds, polyesters, acrylics, epoxides, phenolics, modified acrylics, modified vinyls and urethanes; said carboxylate being present in at least the stochiometric quantity required to react with said drying agent; (C) about 0 to 90.0% by weight of a solvent selected from the group consisting of water, and organic solvents;
Claim 2
Dependent Claim
118 words
A controllable drying-time, water-based or organic solvent-based alkyd composition which dries rapidly at ambient temperature without substantial evolution of gaseous by-products and is capable of application and flow on a solid substrate, comprising: (A) about 0.1 to 40.0% by weight of a drying agent selected from the group comprising carbodiimides, polycarbodiimides and substituted polycarbodiimides; (B) about 60 to 99.5% by weight of an organic carboxylate selected from the group comprising alkyds, polyesters, acrylics, epoxides, phenolics, modified acrylics, modified vinyls and urethanes; said carboxylate being present in at least the stochiometric quantity required to react with said drying agent; (C) about 0 to 90.0% by weight of a solvent selected from the group consisting of water, and organic solvents;
Claim 3
Dependent Claim
39 words
A composition according to claim 1 further comprising: (A) about 0.1 to 10% by weight of a coupling agent selected from the group consisting of dialky alkyamines, glycol ethers, butylcellosolve, sorbitan diethylene glycol monoethyl ether, ethylene glycol monopropyl ether.
Claim 4
Dependent Claim
34 words
A composition according to claim 1 comprising: (A) 0.5 to 15% by weight of said drying agent, (B) 15 to 60% by weight of said organic carboxylate (C) 20 to 80% of said solvent;
Claim 5
Dependent Claim
37 words
A composition according to claim 1 comprising: (A) 1 to 10% by weight of said drying agent; (B) 20 to 35% by weight of said organic carboxlate; and (C) 30 to 60% by weight of said solvent.
Claim 6
Dependent Claim
29 words
A composition according to claim 1 wherein said organic carboxylate comprises a long oil alkyd having a triglyceride content in the range of about 59 to 85% by weight.
Claim 7
Dependent Claim
30 words
A composition according to claim 1 wherein said organic carboxylate comprises a medium oil alkyd having a triglyceride content in the range of about 48 to 58 percent by weight.
Claim 8
Dependent Claim
42 words
A composition according to claim 1 which dries tack-free at 24° C. (75° F.) in less than about 20 minutes, said organic carboxylate comprising a short oil alkyd having a triglyceride content in the range of about 33 to 47% by weight.
Claim 9
Independent Claim
158 words
A method of producing an anti-corrosive, controllable drying-time, water-based or organic solvent-based alkyd composition which dries rapidly at ambient temperature without substantial evolution of gaseous by-products and is capable of application and flow on a solid substrate, said method comprising the following steps: (A) mixing and and in an essentially fluid state a drying agent selected from the group comprising carbodiimides, polycarbodiimdes and substituted polycarbodiimides; (B) an organic carboxylate selected from the group comprising alkyds, polyesters, acrylics, epoxides, phenolics, modified acrylics, modified vinyls and urethanes; said carboxylate being present in at least the stochiometric quantity required to react with said drying agent; (C) a substantial quantity of water or an organic solvent; (D) neutralizing to a pH of about 7 to 11 with amine; (E) adding water or organic solvent with agitation at such temperatures so as to cause dispersion of the mixture; and (F) adjusting the pH of the total mixture from about 7 to about 11.
Claim 10
Independent Claim
158 words
A method of producing an anti-corrosive, controllable drying-time, water-based or organic solvent-based alkyd composition which dries rapidly at ambient temperature without substantial evolution of gaseous by-products and is capable of application and flow on a solid substrate, said method comprising the following steps: (A) mixing and and in an essentially fluid state a drying agent selected from the group comprising carbodiimides, polycarbodiimdes and substituted polycarbodiimides; (B) an organic carboxylate selected from the group comprising alkyds, polyesters, acrylics, epoxides, phenolics, modified acrylics, modified vinyls and urethanes; said carboxylate being present in at least the stochiometric quantity required to react with said drying agent; (C) a substantial quantity of water or an organic solvent; (D) neutralizing to a pH of about 7 to 11 with amine; (E) adding water or organic solvent with agitation at such temperatures so as to cause dispersion of the mixture; and (F) adjusting the pH of the total mixture from about 7 to about 11.
Claim 11
Dependent Claim
15 words
A method for coating metal substrates wherein said composition of claim 1 is applied thereto.
Claim 12
Dependent Claim
17 words
A method for coating solid substrates wherein said composition of claim 1 is applied thereto by dipping.
Claim 13
Dependent Claim
17 words
A method for coating solid substrates wherein said composition of claim 1 is applied thereto by brushing.
Claim 14
Dependent Claim
17 words
A method for coating solid substrates wherein said composition of claim 1 is applied thereto by rolling.
Claim 15
Dependent Claim
18 words
A method for coating solid substrates wherein said composition of claim 1 is applied thereto by electrostatic spraying.
Claim 16
Dependent Claim
18 words
A method for coating solid substrates wherein said composition of claim 1 is applied thereto by hand spraying.
Claim 17
Dependent Claim
13 words
A manufacture comprising a substrate coated with a coating composition of claim 1.
Claim 18
Dependent Claim
35 words
A composition according to claim 1 comprising: (A) about 0.5 to 25 percent of component A; (B) about 5 to 10 percent of component B; and (C) about 0 to 90 percent of component C.
Claim 19
Dependent Claim
35 words
A composition according to claim 1 comprising: (A) about 1 to 15 percent of component A; (B) about 8 to 12 percent of component B; and (C) about 0 to 90 percent of component C.
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) | 1989-09-15 | 1990-03-17 | 1990-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-09-15 | 1994-03-17 | 1994-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-09-15 | 1998-03-17 | 1998-09-16 | $7700.00 | Window Closed / Lapsed |