EP0195493A2
Expired / Lapsed
EP
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Transparent article and process for preparation thereof
Assignee: Toray Industries Inc
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Filing: 1986-01-15
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Granted: —
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Expires: 2006-01-15
Abstract
Abstract A transparent article consists of a transparent substrate coated with a transparent film composed of a composition made up as follows (parts by weight) - 100 parts of an organic silicon compound 10-30 parts of a polyfunctional epoxy resin having an aromatic or aliphatic ring, and 25-800 parts of antimony oxide particles with an average particle size of 1 to 200 nm. The organic silicon compound has the general formula (I) or is a hydrolysis product of a compound within that formula. In formula (1) R' and R 2 each stand for an alkyl group an alkenyl group, an aryl group or a hydrocarbon group having a halogen group, an epoxy group, a glycidoxy group, an amino group, a mercapto group, a methacryloxy group or a cyano group, R 3 stands for an alkyl group having 1 to 8 carbon atoms, an alkoxyalkyl group, an acyl group or a phenyl group, and a and b are 0 or 1. Transparent articles of the invention are suitable for spectacle and camera lenses, and for other optical articles.
Inventors
- 👤 Kaoru Mori
- 👤 Naoki Shimoyama
- 👤 Takashi Taniguchi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 07:48
CPC Classifications
C; C09; C09D; C09D163/00; C09D183/00; C09D183/04; G02B1/105; G; G02; G02B; G02B1/00; G02B1/10; G02B1/11; G02B1/111; G02B1/14; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/256; Y10T428/31504; Y10T428/31507; Y10T428/31511; Y10T428/31515; Y10T428/31518; Y10T428/31551; Y10T428/31609; Y10T428/31612; Y10T428/31652; Y10T428/31663
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
168 words
A transparent article comprising on the surface of a transparent substrate a cured transparent coating film composed of a composition comprising 100 parts by weight of an organic silicon compound represented by the following general formula (I) and/or a hydrolysis product thereof: R 1 a R 2 b Si(OR 3 ) 4-a-b (I) wherein R 1 and R 2 each stand for an alkyl group, an alkenyl group, an aryl group or a hydrocarbon group having a halogen group, an epoxy group, a glycidoxy group, an amino group, a mercapto group,a methacryloxy group or a cyano group, R stands for an alkyl group having 1 to 8 carbon atoms, an alkoxyalkyl group, an acyl group or a phenyl group, and a and b are 0 or 1, 10 to 300 parts by weight of a polyfunctional epoxy resin having an aromatic ring and/or an aliphatic ring and 25 to 800 parts by weight of antimony oxide fine particles having an average particle size of 1 to 200 nm.
Claim 2
Dependent Claim
168 words
A transparent article comprising on the surface of a transparent substrate a cured transparent coating film composed of a composition comprising 100 parts by weight of an organic silicon compound represented by the following general formula (I) and/or a hydrolysis product thereof: R 1 a R 2 b Si(OR 3 ) 4-a-b (I) wherein R 1 and R 2 each stand for an alkyl group, an alkenyl group, an aryl group or a hydrocarbon group having a halogen group, an epoxy group, a glycidoxy group, an amino group, a mercapto group,a methacryloxy group or a cyano group, R stands for an alkyl group having 1 to 8 carbon atoms, an alkoxyalkyl group, an acyl group or a phenyl group, and a and b are 0 or 1, 10 to 300 parts by weight of a polyfunctional epoxy resin having an aromatic ring and/or an aliphatic ring and 25 to 800 parts by weight of antimony oxide fine particles having an average particle size of 1 to 200 nm.
Claim 3
Dependent Claim
30 words
A transparent article as set forth in claim 1, wherein the epoxy equivalent of the polyfunctional epoxy resin having an aromatic ring and/or an aliphatic ring is 180 to 400.
Claim 4
Dependent Claim
22 words
A transparent article as set forth in claim 1 or claim 2, wherein the transparent substrate is composed of a plastics material.
Claim 5
Dependent Claim
21 words
A transparent article as set forth in claim 3, wherein the refractive index of the plastics material is 1.54 to 1.70.
Claim 6
Dependent Claim
29 words
A transparent article as set forth in claim 1 or claim 2, wherein the transparent substrate is composed of a plastics material containing a halogen atom other than fluorine.
Claim 7
Dependent Claim
23 words
A transparent article as set forth in claim 1 or claim 2, wherein the transparent substrate is composed of an inorganic ceramic material.
Claim 8
Dependent Claim
28 words
A transparent article as set forth in claim 6 wherein the inorganic ceramic material has a transparent electroconductive film on at least a part of the surface thereof.
Claim 9
Dependent Claim
20 words
A transparent article as set forth in any preceding claim, wherein the cured transparent film is one cured by heating.
Claim 10
Dependent Claim
21 words
A transparent article as set forth in any preceding claim, wherein the antimony oxide fine particles are composed of antimony pentoxide.
Claim 11
Dependent Claim
25 words
A transparent article as set forth in any preceding claim, wherein the cured transparent film contains a transition metal compound and/or a reaction product thereof.
Claim 12
Dependent Claim
36 words
A transparent article as set forth in claim 10, wherein the transition metal compound and/or the reaction product thereof is a chelate compound of at least one metal selected from Cu, Ni, Mn, Co and Fe.
Claim 13
Dependent Claim
30 words
A transparent article as set forth in claim 10 or claim 11, wherein the transition metal compound and/or the reaction product has a function of a singlet state oxygen quencher.
Claim 14
Dependent Claim
187 words
A transparent article comprising on the surface of a transparent substrate a cured transparent coating film composed of a composition comprising 100 parts by weight of an organic silicon compound represented by the following general formula (I) and/or a hydrolysis product thereof: R 1 a R 2 b Si(OR 3 ) 4-a-b (I) wherein R 1 and R 2 each stand for an alkyl group, an alkenyl group, an aryl group or a hydrocarbon group, having a halogen group, an epoxy group, a glycidoxy group, an amino group, a mercapto group, a methacryloxy group or a cyano group, R 3 stands. for an alkyl group having 1 to 8 carbon atoms, an alkoxyalkyl group, an acyl group or a phenyl group, and a and b are 0 or 1, 10 to 300 parts by weight of a polyfunctional epoxy resin having an aromatic ring and/or an aliphatic ring and 25 to 800 parts by weight of antimony oxide fine particles having an average particle size of 1 to 200 nm, and a transparent film composed of an inorganic oxide, which is formed on the cured transparent film.
Claim 15
Dependent Claim
187 words
A transparent article comprising on the surface of a transparent substrate a cured transparent coating film composed of a composition comprising 100 parts by weight of an organic silicon compound represented by the following general formula (I) and/or a hydrolysis product thereof: R 1 a R 2 b Si(OR 3 ) 4-a-b (I) wherein R 1 and R 2 each stand for an alkyl group, an alkenyl group, an aryl group or a hydrocarbon group, having a halogen group, an epoxy group, a glycidoxy group, an amino group, a mercapto group, a methacryloxy group or a cyano group, R 3 stands. for an alkyl group having 1 to 8 carbon atoms, an alkoxyalkyl group, an acyl group or a phenyl group, and a and b are 0 or 1, 10 to 300 parts by weight of a polyfunctional epoxy resin having an aromatic ring and/or an aliphatic ring and 25 to 800 parts by weight of antimony oxide fine particles having an average particle size of 1 to 200 nm, and a transparent film composed of an inorganic oxide, which is formed on the cured transparent film.
Claim 16
Dependent Claim
36 words
A transparent article as set forth in claim 13, wherein the inorganic oxide is at least one member selected from Si0 2 , A1 2 0 3 , Yb 2 O 3 and Zr0 2 .
Claim 17
Dependent Claim
29 words
A transparent article as set forth in claim 13 or claim 14, wherein the transparent film of the inorganic oxide is a multi-layer film having at least two layers.
Claim 18
Dependent Claim
26 words
A transparent article as set forth in any one of claims 13 to 15, wherein the transparent film of the inorganic oxide is an anti-reflection film.
Claim 19
Dependent Claim
19 words
A transparent article as set forth in any one of claims 13 to 16, which is an optical article.
Claim 20
Dependent Claim
17 words
A transparent article as set forth in claim 17, wherein the optical article is a spectacle lens.
Claim 21
Dependent Claim
34 words
A process for the preparation of a transparent article as set forth in any one of claims 13 to 16, wherein the transparent film of the inorganic oxide is formed by vacuum evaporation deposition.
References Cited (Backward Citations)
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