US4690987A
Expired / Lapsed
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Activation energy-curable resin composition
Assignee: DIC Corp
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Filing: 1985-05-23
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Granted: 1987-09-01
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Expires: 2005-05-23
Abstract
Abstract An activation energy-curable resin composition comprising as an essential ingredient a resin obtained by reacting (a) the reaction product of a novolac epoxy compound and an unsaturated monocarboxylic acid with (b) the reaction product of a diisocyanate and a poly(meth)acrylate having one hydroxyl group for each molecule.
Inventors
- 👤 Shigeru Sakakibara
- 👤 Shunji Arimoto
- 👤 Hidenobu Ishikawa
- 👤 Osamu Maruyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:13
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/81; C08G18/8141; C08G18/815; C08G18/8158; C08G18/8175; C08G18/28; C08G18/67; C08G18/6705; C08L; C08L63/00; C08L63/10; Y; Y10; Y10S; Y10S525/00; Y10S525/92
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
57 words
An activation energy-curable resin composition comprising as an essential ingredient a resin obtained by reacting (a) the reaction product of a novolac epoxy compound and an unsaturated monocarboxylic acid with (b) the reaction product of a diisocyanate and a polyacrylate or polymechacrylate ester of a polyol wherein the final structure has one hydroxyl group for each molecule.
Claim 2
Dependent Claim
57 words
An activation energy-curable resin composition comprising as an essential ingredient a resin obtained by reacting (a) the reaction product of a novolac epoxy compound and an unsaturated monocarboxylic acid with (b) the reaction product of a diisocyanate and a polyacrylate or polymechacrylate ester of a polyol wherein the final structure has one hydroxyl group for each molecule.
Claim 3
Dependent Claim
41 words
The composition of claim 1 wherein the reaction product (a) is the reaction product of acrylic or methacrylic acid with a phenol novolac epoxy resin obtained by the addition reaction of a polycondensate of phenol and formaldehyde with epichlorohydrin or beta-methylepichlorohydrin.
Claim 4
Dependent Claim
46 words
The composition of claim 1 wherein the reaction product (a) is the reaction product of acrylic or methacrylic acid with an alkylphenol novolac epoxy resin obtained by the addition reaction of a polycondensate of an (C 1 -C 9 alkyl)phenol and formaldehyde with epichlorohydrin or beta-methylepichlorohydrin.
Claim 5
Dependent Claim
25 words
The composition of claim 1 wherein the reaction product (a) is the reaction product of a cresol novolac epoxy resin with acrylic or methacrylic acid.
Claim 6
Dependent Claim
29 words
The composition of any one of claims 1 to 4 wherein the reaction product (a) is obtained by using a novolac epoxy compound having 3 to 8 phenol nuclei.
Claim 7
Dependent Claim
51 words
The composition of any one of claims 1 to 4 wherein the reaction product (a) is obtained by reacting the novolac epoxy compound and the unsaturated monocarboxylic acid in such proportions that the equivalent ratio of the epoxy groups of the former to the carboxyl group of the latter is 1.0-1.7:1.0.
Claim 8
Dependent Claim
84 words
The composition of claim 1 wherein the reaction product (b) is a reaction product of at least one polyacrylate or polymethacrylate ester of a polyol wherein the final structure has 1 hydroxyl group per molecule which is selected from the group consisting of pentaerythritol tri(meth)acrylate, dipentaerythritol penta(meth)acrylate, trimethylolpropane di(meth)acrylate, glycerin di(meth)acrylate and tris(hydroxyethyl)isocyanurate di(meth)acrylate with at least one diisocyanate selected from the group consisting of 2,4-tolylene diisocyanate, 2,6-tolylene diisocyanate, xylylene-1,4-diisocyanate, hydrogenated xylylene diisocyanate, hexamethylene diisocyanate, isophorone diisocyanate, diphenylmethane diisocyanate, toluidine diisocyanate and lysine diisocyanate.
Claim 9
Dependent Claim
66 words
The composition of claim 1 or 7 wherein the reaction product (b) is obtained by reacting the polyacrylate or polymethacrylate ester of a polyol wherein the final structure has 1 hydroxyl group per molecule and the diisocyanate in such proportions that the equivalent ratio of the hydroxyl groups of the former to the isocyanate groups of the latter is in the range of 1.0:2.0 to 1.3:2.0.
Claim 10
Dependent Claim
16 words
The composition of claim 6 wherein the novolak epoxy compound has 3 to 8 phenol nuclei.
Claim 11
Dependent Claim
50 words
The composition of claim 1 wherein the resin is obtained by reacting the reactants (a) and (b) in such proportions that the equivalent ratio of the isocyanate groups of the reaction product (b) to the hydroxyl groups of the reaction product (a) is within the range of 1.0:1.0 to 0.1:1.0.
Claim 12
Dependent Claim
12 words
The composition of claim 10 wherein the ratio is 0.8:1.0 to 0.2:1.0.
Claim 13
Dependent Claim
30 words
The composition of claim 1 which is curable by exposure to ultraviolet light and further comprising a photoreaction accelerator for initiating the polymerization of the resin component by ultraviolet light.
Claim 14
Dependent Claim
34 words
The composition of claim 12 wherein the photoreaction accelerator is selected from the group consisting of benzoin, benzoin methyl ether, benzoin ethyl ether, benzoin formate, 1-hydroxy-1-benzoylcyclohexane, dibutoxyacetophenone, alpha-hydroxy-iso-butyrophenone, p-isopropyl-alpha-methoxyisobutyrophenone, benzyl diphenyl disulfide and azobisisobutyronitrile.
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) | 1990-08-31 | 1991-03-02 | 1991-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-08-31 | 1995-03-02 | 1995-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-08-31 | 1999-03-02 | 1999-09-01 | $7700.00 | Window Closed / Lapsed |