EP0034722A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Coating composition and process for adhering a curable composition to a substrate
Assignee: Kanegafuchi Chemical Industry Co Ltd
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Filing: 1981-01-29
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Granted: —
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Expires: 2001-01-29
Abstract
Abstract A transparent coating composition for substrates, in particular glass, is described comprising a film former and an ultraviolet absorber capable of absorbing light having a wavelength of not more than 380 nm. Furthermore a process for adhering a curable composition to a substrate, particularly to glass, is described, using said UV-absorbing coating composition as a primer and applying on top of it a curable composition.
Inventors
- 👤 Fumio Kawakubo
- 👤 Toshifumi Hirose
- 👤 Tadashi Minokami
- 👤 Miyako Hosaka
- 👤 Katsuhiko Isayama
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 15:53
CPC Classifications
C; C09; C09J; C09J5/00; C09J5/02; C09D; C09D5/00; C09D5/32; C09J2400/00; C09J2400/10; C09J2400/14; C09J2400/146; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31533; Y10T428/31551; Y10T428/31598; Y10T428/31609; Y10T428/31612; Y10T428/31652; Y10T428/31663
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
27 words
A coating composition, particularly for glass, comprising a film former and an ultraviolet absorber capable of absorbing light having a wavelength of not more than 380 nm.
Claim 2
Dependent Claim
27 words
A coating composition, particularly for glass, comprising a film former and an ultraviolet absorber capable of absorbing light having a wavelength of not more than 380 nm.
Claim 3
Dependent Claim
49 words
The composition of claim 1, wherein the light absorption spectrum of a film formed by said composition has an absorption wavelength band having a light transmittance of at least 5% in the region of 380 to 700 nm l and the film thickness is from 0.1 to 300 microns.
Claim 4
Dependent Claim
24 words
The composition of claim 1 or 2 wherein the proportion of the ultraviolet absorber is at least 0.5% by weight based on the composition.
Claim 5
Dependent Claim
21 words
The composition of any of claims 1 to 3, further comprising at least 0.1% by weight of a pigment or dye.
Claim 6
Dependent Claim
22 words
The composition of any of claims 1 to 4, wherein the ultraviolet absorber is a benzophenone compound or a metal chelate compound.
Claim 7
Dependent Claim
32 words
The composition of any of claims1 to 5,.wherein said film former is a compound selected from the class consisting of silicone-modified diallylphthalate prepolymers, silicone-modified epoxy resins, silicone-modified acrylic polymers and mixtures thereof.
Claim 8
Dependent Claim
44 words
The composition of claim 6, wherein said film former further contains a compound selected from the class consisting of polyisocyanates, silicone-modified polyisocyanates, silane coupling agents, reaction products of silane coupling agents and mixtures thereof in a lower amount than the compound of claim 6.
Claim 9
Dependent Claim
18 words
The composition of any of claims 1 to 7, wherein the film former additionally contains a rubbery polymer.
Claim 10
Dependent Claim
13 words
The composition of claim 8, wherein said rubbery polymer is a silicone-modified polyether.
Claim 11
Dependent Claim
78 words
A process for adhering a curable composition to a substrate, particularly glass, characterised in that a composition according to any of claims 1 to 9 which comprises a film-former and an ultraviolet absorber is first coated onto the surface of the substrate to form a film capable of absorbing light having a wavelength of not more than 380 nm, and a curable composition is thereafter coated onto the top of the first composition and said composition is cured.
Claim 12
Dependent Claim
12 words
The process of claim 10, wherein said curable composition is a sealant.
Claim 13
Dependent Claim
26 words
The process of claim 11, wherein said sealant is one from the class consisting of modified silicone type sealants, urethane type sealants and polysulfide type sealants.
References Cited (Backward Citations)
No citation records indexed.
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