Patent US4162076A successfully refreshed from Google Patents.
Patent US3878148A successfully refreshed from Google Patents.
US3878148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film-farming compositions comprising autoxidizable material
Assignee: Delux Australia Ltd
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Filing: 1973-09-20
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Granted: 1975-04-15
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Expires: 1993-09-20
Abstract
Abstract Novel film-forming compositions are disclosed which are useful in preparing paints of unusual through-drying potential. The novel compositions comprise autoxidizable esterification residues of unsaturated fatty acids and at least one moiety per molecule of the structure WHEREIN A is H or Ch3 and B is - CH2
Inventors
- 👤 John Gillan
- 👤 Livia Polgar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:34
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/52; C08G63/56; C08G63/58; C09; C09D; C09D167/00; C09D167/08
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
24 words
A FILM-FORMING COMPOSITION COMPRISING AUTOXIDIZABLE ESTERIFICATION RESIDUES OF UNSATURATED FATTY ACIDS AND AT LEAST ONE MOIETY PER MOLECULE WITH A STRUCTURE OF THE FORM:
Claim 2
Dependent Claim
24 words
A FILM-FORMING COMPOSITION COMPRISING AUTOXIDIZABLE ESTERIFICATION RESIDUES OF UNSATURATED FATTY ACIDS AND AT LEAST ONE MOIETY PER MOLECULE WITH A STRUCTURE OF THE FORM:
Claim 3
Dependent Claim
30 words
A film-forming composition according to claim 1 in which the autoxidizable esterification residues of unsaturated fatty acids are provided by a maleinized fatty acid ester of pentaerythritol, dipentaerythritol or tripentaerythritol.
Claim 4
Dependent Claim
24 words
A film-forming composition according to claim 2 in which the maleinized fatty acid ester contains 4 - 20% by wt. of combined maleic anhydride.
Claim 5
Dependent Claim
26 words
A film-forming composition according to claim 1 in which the autoxidizable esterification residues of unsaturated fatty acids are provided by a drying oil modified alkyd resin.
Claim 6
Dependent Claim
19 words
A film-forming composition according to claim 4 in which the alkyd resin has a hydroxyl number of 100 maximum.
Claim 7
Dependent Claim
137 words
A process of preparing a film-forming composition according to claim 1 by reacting a drying-oil modified alkyd resin comprising unreacted carboxyl groups with a polymerizable monomer selected from glycidyl acrylate and glycidyl methacrylate, further characterised in that; a. the alkyd resin is first prepared to an acid value of 20 mgm. KOH per gm. maximum, b. sufficient added acid anhydride is reacted with hydroxyl groups of the above alkyd resin to raise its acid value to at least the stoichiometric amount required to react with the said polymerizable monomer and the hydroxyl number of the alkyd resin reduced to 100 maximum, and c. carboxyl groups of the alkyd resin and epoxide groups of the polymerizable monomer are reacted together at temperatures not exceeding 120*C until the reaction is completed as shown by the fall in acid value.
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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) | 1978-04-14 | 1978-10-14 | 1979-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-14 | 1982-10-14 | 1983-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-14 | 1986-10-14 | 1987-04-15 | $7700.00 | Window Closed / Lapsed |