US4299742A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkyds
Assignee: Covestro Resins BV
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Filing: 1980-02-04
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Granted: 1981-11-10
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Expires: 2000-02-04
Abstract
Abstract The invention provides novel water-dispersible air-drying alkyds containing 1.25-3.75% by weight of polyalkylene oxide radicals, in particular polyethylene glycol, and novel aqueous dispersions of these alkyds (alkyd : water from 30:70 to 70:30) which can be worked into water-based paints having a glossy finish.
Inventors
- 👤 Eimbert G. Belder
- 👤 John C. Legg
- 👤 Robert van der Linde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:40
CPC Classifications
C; C09; C09D; C09D167/00; C09D167/08; C08; C08G; C08G63/00; C08G63/66; C08K; C08K3/00; C08K3/01; C08K3/013; C08K5/00; C08K5/0008; C08K5/0041; H; H01; H01J; H01J1/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
121 words
An aqueous dispersion comprising: an air drying alkyd containing from 1.5 to 2.75 weight percent of polyoxyalkylene radicals, said alkyd having an acid value of from 5 to 20 mg KOH/g and a hydroxyl value of from 5 to 125 mg KOH/g, the wieght ratio of alkyd to water being from 30:70 to 70:30, a non-ionic emulsifying agent in an amount of from 0.25 to 5% by weight, based on the dispersion; a C 2 -C 6 alcohol in an amount of from 0 to 10% by weight based on the dispersion; and a volatile water-soluble base in an amount of from 0.5 to 5% by weight, based on the dispersion; said dispersion having a pH ranging between 5 and 9.
Claim 2
Dependent Claim
121 words
An aqueous dispersion comprising: an air drying alkyd containing from 1.5 to 2.75 weight percent of polyoxyalkylene radicals, said alkyd having an acid value of from 5 to 20 mg KOH/g and a hydroxyl value of from 5 to 125 mg KOH/g, the wieght ratio of alkyd to water being from 30:70 to 70:30, a non-ionic emulsifying agent in an amount of from 0.25 to 5% by weight, based on the dispersion; a C 2 -C 6 alcohol in an amount of from 0 to 10% by weight based on the dispersion; and a volatile water-soluble base in an amount of from 0.5 to 5% by weight, based on the dispersion; said dispersion having a pH ranging between 5 and 9.
Claim 3
Dependent Claim
33 words
A dispersion as claimed in claim 1, in which the alkyd has an acid value of from 7 to 14 mg KOH/g and a hydroxyl value of from 10 to 75 mg KOH/g.
Claim 4
Dependent Claim
41 words
A dispersion according to claim 1 in which the emulsifying agent is the ethylene oxide addition product of a C 12 -C 20 hydroxyl or carboxyl compound having an average of from 2 to 50 ethylene oxide groups in the molecule.
Claim 5
Dependent Claim
16 words
A dispersion according to claim 1, in which the base is a water-soluble volatile amino compound.
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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) | 1984-11-09 | 1985-05-11 | 1985-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-09 | 1989-05-11 | 1989-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-09 | 1993-05-11 | 1993-11-10 | $7700.00 | Window Closed / Lapsed |