EP0239351A2
Expired / Lapsed
EP
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Epoxy(meth)acrylate resin, process for preparing the same and adhesive composition containing the same
Assignee: NTT Inc
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Filing: 1987-03-23
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Granted: —
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Expires: 2007-03-23
Abstract
Abstract The fluorine-containing epoxy(meth)acrylate resin of the invention is represented by the following general formula (I). <CHEM> and -CH2(CF2)6CH2-; n is zero or a positive integer; and X is hydrogen or methyl group. The resin of the invention may be prepared by reacting a diglycidyl ether of a fluorine-containing hydrocarbon (Rf) with acrylic acid or methacrylic acid. Further provided is an adhesive composition comprising the aforementioned fluorine-containing epoxy(meth)acrylate resin and a photo polymerization initiator, which can be cured at room temperature within a short time by irradiation with an UV ray to form a cured product having a refractive index n @@ ranging from 1.434 to 1.532. The adhesive composition of the invention has a particular utility when used to form a part or zone contacting with a quarz glass or glass fibers, since it is improved in matching of the refractive index with those of the quarz glass and optical fibers.
Inventors
- 👤 Tohru Maruno
- 👤 Shigeki Ishibashi
- 👤 Kouzaburou Nakamura
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 13:11
CPC Classifications
C; C09; C09J; C09J163/00; C09J163/10; C08; C08F; C08F299/00; C08F299/02; C08F299/026; C08G; C08G59/00; C08G59/14; C08G59/1433; C08G59/1438; C08G59/1455; C08G59/1461; C08G59/1472; C08G59/18; C08G59/20; C08G59/22; C08G59/30
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
68 words
A fluorine-containing epoxy(meth)acrylate resin represented by the following general formula (I) of: wherein R f is selected from the group consisting of -Ø-C(CF 3 ) 2 -Ø- (where Ø stands for -C(CF 3 ) 2 -Ø'-C(CF 3 ) 2 - (where Ø' stands for and -CH 2 (CF 2 ) 6 CH 2 -; n is zero or a positive integer; and X is hydrogen or methyl group.
Claim 2
Dependent Claim
68 words
A fluorine-containing epoxy(meth)acrylate resin represented by the following general formula (I) of: wherein R f is selected from the group consisting of -Ø-C(CF 3 ) 2 -Ø- (where Ø stands for -C(CF 3 ) 2 -Ø'-C(CF 3 ) 2 - (where Ø' stands for and -CH 2 (CF 2 ) 6 CH 2 -; n is zero or a positive integer; and X is hydrogen or methyl group.
Claim 3
Dependent Claim
187 words
A process for preparing a fluorine-containing epoxy(meth)acrylate resin represented by the following general formula (I) of: wherein R f is selected from the group consisting of -Ø-C(CF 3 ) 2 -Ø- (where Ø stands for -C(CF 3 ) 2 -Ø'-C(CF 3 ) 2 - (where Ø' stands for and -CH 2 (CF 2 ) 6 CH 2 -; n is zero or a positive integer; and X is hydrogen or methyl group; comprising the step of reacting a diglycidyl ether of a fluorine-containing hydrocarbon (R f ) with at least one of acrylic acid and methacrylic acid in the presence of a compound selected from the group consisting of tertiary amines and quarternary amines and mixtures thereof, said diglycidyl ether of said fluorine-containing hydrocarbon (R f ) being represented by the following general formula (II) of: , wherein R f is selected from the group consisting of -Ø-C(CF 3 ) 2 -Ø- (where Ø stands for -C(CF 3 ) 2 -Ø'-C(CF 3 ) 2 - (where 0' stands for and -CH 2 (CF 2 ) 6 CH 2 -; and n is zero or a positive integer.
Claim 4
Dependent Claim
187 words
A process for preparing a fluorine-containing epoxy(meth)acrylate resin represented by the following general formula (I) of: wherein R f is selected from the group consisting of -Ø-C(CF 3 ) 2 -Ø- (where Ø stands for -C(CF 3 ) 2 -Ø'-C(CF 3 ) 2 - (where Ø' stands for and -CH 2 (CF 2 ) 6 CH 2 -; n is zero or a positive integer; and X is hydrogen or methyl group; comprising the step of reacting a diglycidyl ether of a fluorine-containing hydrocarbon (R f ) with at least one of acrylic acid and methacrylic acid in the presence of a compound selected from the group consisting of tertiary amines and quarternary amines and mixtures thereof, said diglycidyl ether of said fluorine-containing hydrocarbon (R f ) being represented by the following general formula (II) of: , wherein R f is selected from the group consisting of -Ø-C(CF 3 ) 2 -Ø- (where Ø stands for -C(CF 3 ) 2 -Ø'-C(CF 3 ) 2 - (where 0' stands for and -CH 2 (CF 2 ) 6 CH 2 -; and n is zero or a positive integer.
Claim 5
Dependent Claim
25 words
The process as claimed in claim 2, wherein said tertiary amines include triethylamine and trimethylamine, and said quarternary amines include benzyltrimethylammonium chloride and tetrabutylammonium bromide.
Claim 6
Dependent Claim
35 words
The process as claimed in claim 2, wherein said acrylic acid or methacrylic acid is used in an amount of 2 to 10 mols per 1 mol of said diglycidyl ether of said fluorine-containing hydrocarbon.
Claim 7
Dependent Claim
77 words
An adhesive composition comprising a photo polymerization initiator and a fluorine-containing epoxy(meth)acrylate resin represented by the following general formula (I) of: wherein R f is selected from the group consisting of -Ø-C(CF 3 ) 2 -Ø- (where ϕ stands for -C(CF 3 ) 2 -Ø'-C(CF 3 ) 2 - (where Ø' stands for' and -CH 2 (CF 2 ) 6 CH 2 -; n is zero or a positive integer; and X is hydrogen or methyl group.
Claim 8
Dependent Claim
77 words
An adhesive composition comprising a photo polymerization initiator and a fluorine-containing epoxy(meth)acrylate resin represented by the following general formula (I) of: wherein R f is selected from the group consisting of -Ø-C(CF 3 ) 2 -Ø- (where ϕ stands for -C(CF 3 ) 2 -Ø'-C(CF 3 ) 2 - (where Ø' stands for' and -CH 2 (CF 2 ) 6 CH 2 -; n is zero or a positive integer; and X is hydrogen or methyl group.
Claim 9
Dependent Claim
54 words
The adhesive composition as claimed in claim 5, wherein said photo polymerization initiator is selected from the group consisting of benzoin butyl ether, benzyl dimethyl ketal, benzoin ethyl ether, benzophenone and Michler's ketone, and used in an amount of from 2 wtO/o to 10 wt% based on the weight of said fluorine-containing epoxy(meth)acrylate resin.
Claim 10
Dependent Claim
50 words
The adhesive composition as claimed in claim 5, wherein a mixture of said fluorine-containing epoxy(meth)acrylate resin and said photo polymerization initiator is cured by exposure to an irradiation of an UV ray having a wave length ranging from 320 to 400 nm at room temperature for 1 to 10 minutes.
Claim 11
Dependent Claim
35 words
The adhesive composition as claimed in claim 5, wherein the cured mass of said adhesive composition comprising said fluorine-containing epoxy(meth)acrylate resin and said photo polymerization initiator has a refractive index of from 1.434 to 1.532.
References Cited (Backward Citations)
No citation records indexed.
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