Patent US777438A successfully refreshed from Google Patents.
Patent US4143090A successfully refreshed from Google Patents.
US4143090A
Expired / Lapsed
US
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Hardenable compositions comprising an unsaturated epoxy ester and an ethylenically unsaturated monomer
Assignee: Societa Italiana Resine SpA SIR
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Filing: 1977-05-02
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Granted: 1979-03-06
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Expires: 1997-05-02
Abstract
Abstract A hardenable composition comprising an unsaturated epoxy ester resin and an ethylenically unsaturated monomer copolymerizable with the latter, said monomer being present in the composition in an amount of from 0.4 to 2 parts by weight for each part by weight of said resin, and said resin being the reaction product of an unsaturated monocarboxylic acid or a monoester of an unsaturated bicarboxylic acid with the epoxidation product of epichlorohydrin and a novolak phenolic resin of the structural formula: ##STR1## wherein R is an alkyl radical containing from 1 to 10 carbon atoms, the methylene bridges being bonded to the central phenol ring in the ortho- positions in relation to the hydroxyl group, and to the other phenol rings in the ortho- or para- positions in relation to the hydroxyl groups.
Inventors
- 👤 Silvio Vargiu
- 👤 Beppino Passalenti
- 👤 Silvestro Pezzoli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:37
CPC Classifications
C; C08; C08F; C08F299/00; C08F299/02; C08F299/026; C08G; C08G59/00; C08G59/14; C08G59/1433; C08G59/1438; C08G59/1455; C08G59/1461; Y; Y10; Y10S; Y10S525/00; Y10S525/922
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
129 words
A hardenable composition comprising an unsaturated epoxy ester resin and an ethylenically unsaturated monomer copolymerizable with the latter, said monomer being present in the composition in an amount of from 0.4 to 2 parts by weight for each part by weight of said resin, and said resin being the reaction product of an unsaturated monocarboxylic acid or a monoester of an unsaturated bicarboxylic acid with the epoxidation product of epichlorohydrin and a novolak phenolic resin of the structural formula: ##STR5## wherein R is an alkyl radical containing from 1 to 10 carbon atoms, the methylene bridges being bonded to the central phenol ring in the ortho-positions in relation to the hydroxyl group, and to the other phenol rings in the ortho- or para-positions in relation to the hydroxyl groups.
Claim 2
Dependent Claim
129 words
A hardenable composition comprising an unsaturated epoxy ester resin and an ethylenically unsaturated monomer copolymerizable with the latter, said monomer being present in the composition in an amount of from 0.4 to 2 parts by weight for each part by weight of said resin, and said resin being the reaction product of an unsaturated monocarboxylic acid or a monoester of an unsaturated bicarboxylic acid with the epoxidation product of epichlorohydrin and a novolak phenolic resin of the structural formula: ##STR5## wherein R is an alkyl radical containing from 1 to 10 carbon atoms, the methylene bridges being bonded to the central phenol ring in the ortho-positions in relation to the hydroxyl group, and to the other phenol rings in the ortho- or para-positions in relation to the hydroxyl groups.
Claim 3
Dependent Claim
24 words
The hardenable composition of claim 1, wherein said unsaturated monocarboxylic acid is selected from the group consisting of acrylic, methacrylic, crotonic and itaconic acids.
Claim 4
Dependent Claim
21 words
The hardenable composition of claim 1, wherein said monoester is selected from the group consisting of methyl monomaleate and methyl monofumarate.
Claim 5
Dependent Claim
23 words
The hardenable composition of claim 1, wherein said monomer is selected from the group consisting of styrene, vinyltoluene, alpha-methylstyrene, methyl methacrylate and vinylcyclohexene.
Claim 6
Dependent Claim
32 words
The hardenable composition of claim 1, wherein said monomer is present in an amount of from 0.6 to 1.5 parts by weight for each part by weight of said epoxy ester resin.
Claim 7
Dependent Claim
11 words
The hardenable composition of claim 1, wherein said monomer is styrene.
Claim 8
Dependent Claim
153 words
A process for producing a hardened product, which comprises adding a catalytic amount of organic peroxide or hydroperoxide to a hardenable composition comprising an unsaturated epoxy ester resin and an ethylenically unsaturated monomer copolymerizable with the latter, said monomer being present in the composition in an amount of from 0.4 to 2 parts by weight for each part by weight of said resin, and said resin being the reaction product of an unsaturated monocarboxylic acid or a monoester of an unsaturated bicarboxylic acid with the epoxidation product of epichlorohydrin and a novolak phenolic resin of the structural formula: ##STR6## wherein R is an alkyl radical containing from 1 to 10 carbon atoms, the methylene bridges being bonded to the central phenol ring in the ortho-positions in relation to the hydroxyl group, and to the other phenol rings in the ortho- or para-positions in relation to the hydroxyl groups, and hardening the resulting mixture.
Claim 9
Dependent Claim
153 words
A process for producing a hardened product, which comprises adding a catalytic amount of organic peroxide or hydroperoxide to a hardenable composition comprising an unsaturated epoxy ester resin and an ethylenically unsaturated monomer copolymerizable with the latter, said monomer being present in the composition in an amount of from 0.4 to 2 parts by weight for each part by weight of said resin, and said resin being the reaction product of an unsaturated monocarboxylic acid or a monoester of an unsaturated bicarboxylic acid with the epoxidation product of epichlorohydrin and a novolak phenolic resin of the structural formula: ##STR6## wherein R is an alkyl radical containing from 1 to 10 carbon atoms, the methylene bridges being bonded to the central phenol ring in the ortho-positions in relation to the hydroxyl group, and to the other phenol rings in the ortho- or para-positions in relation to the hydroxyl groups, and hardening the resulting mixture.
Claim 10
Dependent Claim
29 words
The process of claim 7, wherein said organic peroxide or hydroperoxide is selected from the group consisting of methyl ethyl ketone peroxide, cyclohexanone peroxide, benzoyl peroxide and cumene hydroperoxide.
Claim 11
Dependent Claim
40 words
The process of claim 7, wherein said peroxide or hydroperoxide is added in an amount of from 0.2 to 4 parts by weight for each 100 parts by weight of the sum of said epoxy ester resin and said monomer.
Claim 12
Dependent Claim
52 words
The process of claim 7, wherein a hardening accelerator selected from the group consisting of dimethylaniline and trimethylbenzylammonium chloride is added to the composition in an amount of from 0.1 to 2 parts by weight for each 100 parts by weight of the sum of said epoxy ester resin and said monomer.
Claim 13
Dependent Claim
58 words
The process of claim 7, wherein a hardening accelerator selected from the group consisting of naphthenates and octoates of cobalt, vanadium and vanadyl is added to the composition in an amount of from 0.02 to 2 parts by weight (as metal) for each 100 parts by weight of the sum of said epoxy ester resin and said monomer.
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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) | 1982-03-05 | 1982-09-04 | 1983-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-05 | 1986-09-04 | 1987-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-05 | 1990-09-04 | 1991-03-06 | $7700.00 | Window Closed / Lapsed |