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US4413105A
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Stabilized thermosettable ethylenically unsaturated epoxy ester resin compositions
Assignee: DIAMOND TECHNOLOGY PARTNERSHIP Co
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Filing: 1982-05-12
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Granted: 1983-11-01
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Expires: 2002-05-12
Abstract
Abstract This invention is directed to thermosettable ethylenically unsaturated epoxy ester resin compositions having improved storage stability and to a method for improving the storage stability of such compositions by adding an anaerobically effective polymerization inhibitor to the resin composition. The resin composition comprises the reaction product of a bisphenol-base epoxy resin, a novolac-base epoxy resin, or a mixture thereof with an ethylenically unsaturated monocarboxylic acid dissolved in a polymerizable monomer containing a >C=CH2 group. The polymerization inhibitors of this invention are 4-chloro-2-nitrophenol, 2,4-dichloro-6-nitrophenol, or mixtures thereof.
Inventors
- 👤 Raymond Koenig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:27
CPC Classifications
C; C08; C08L; C08L63/00; C08L63/10; C08F; C08F299/00; C08F299/02; C08F299/026
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
60 words
A thermosettable ethylenically unsaturated epoxy ester resin composition having improved storage stability comprising the reaction product of a bisphenol-base epoxy resin, a novolac-base epoxy resin, or mixtures thereof with an ethylenically unsaturated monocarboxylic acid dissolved in a polymerizable monomer containing a >C═CH 2 group and an anaerobically effective polymerization selected from the group consisting of 4-chloro-2-nitrophenol, 2,4-dichloro-6-nitrophenol, and mixtures thereof.
Claim 2
Dependent Claim
60 words
A thermosettable ethylenically unsaturated epoxy ester resin composition having improved storage stability comprising the reaction product of a bisphenol-base epoxy resin, a novolac-base epoxy resin, or mixtures thereof with an ethylenically unsaturated monocarboxylic acid dissolved in a polymerizable monomer containing a >C═CH 2 group and an anaerobically effective polymerization selected from the group consisting of 4-chloro-2-nitrophenol, 2,4-dichloro-6-nitrophenol, and mixtures thereof.
Claim 3
Dependent Claim
31 words
The thermosettable resin composition of claim 1 wherein the polymerization inhibitor is present in the range of 10 to 5,000 parts by weight per million parts by weight of resin composition.
Claim 4
Dependent Claim
15 words
The thermosettable resin composition of claim 1 or 2 wherein the polymerization inhibitor is 4-chloro-2-nitrophenol.
Claim 5
Independent Claim
74 words
A method for improving the storage stability of thermosettable ethylenically unsaturated epoxy ester resin compositions by adding an anaerobically effective polymerization inhibitor selected from the group consisting of 4-chloro-2-nitrophenol, 2,4-dichloro-6-nitrophenol, and mixtures thereof to the thermosettable resin composition, the thermosettable resin composition comprising the reaction product of a bisphenol-base epoxy resin, a novolac-base epoxy resin, or mixtures thereof with an ethylenically unsaturated monocarboxylic acid dissolved in a polymerizable monomer containing a >C═CH 2 group.
Claim 6
Independent Claim
74 words
A method for improving the storage stability of thermosettable ethylenically unsaturated epoxy ester resin compositions by adding an anaerobically effective polymerization inhibitor selected from the group consisting of 4-chloro-2-nitrophenol, 2,4-dichloro-6-nitrophenol, and mixtures thereof to the thermosettable resin composition, the thermosettable resin composition comprising the reaction product of a bisphenol-base epoxy resin, a novolac-base epoxy resin, or mixtures thereof with an ethylenically unsaturated monocarboxylic acid dissolved in a polymerizable monomer containing a >C═CH 2 group.
Claim 7
Dependent Claim
30 words
The method of claim 4 wherein the polymerization inhibitor is employed in the range of from 10 to 5,000 parts by weight per million parts by weight of resin composition.
Claim 8
Dependent Claim
13 words
The method of claim 4 or 5 wherein the polymerization inhibitor is 4-chloro-2-nitrophenol.
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) | 1986-10-31 | 1987-05-02 | 1987-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-31 | 1991-05-02 | 1991-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-31 | 1995-05-02 | 1995-11-01 | $7700.00 | Window Closed / Lapsed |