Patent EP0038640A2 successfully refreshed from Google Patents.
EP0038640A2
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EP
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Coating composition
Assignee: AGC Inc
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Filing: 1981-04-03
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Granted: —
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Expires: 2001-04-03
Abstract
Abstract A coating composition comprises (A) an alkyl ether methylomelamine in which a part or whole of methylol groups of methylolmelamine are converted into alkyl ether methylol groups; (B) a polyhydric alcohol having 2 or more hydroxyl groups; and (C) a dispersion of colloidal silica, which can be condensed each other for the two or three components; and (D) a solvent.
Inventors
- 👤 Akinori Noda
- 👤 Seiichi Miyasaka
- 👤 Hiroshi Kawahara
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 19:03
CPC Classifications
C; C09; C09D; C09D161/00; C09D161/20; C09D161/32; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08J7/046; C08J2461/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31507; Y10T428/31551; Y10T428/31594; Y10T428/31598; Y10T428/31627; Y10T428/31855; Y10T428/31859; Y10T428/31935
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
62 words
1) A coating composition which comprises (A) an alkyl ether methylolmelamine in which a part or whole of methylol groups of methylolmelamine are converted into alkyl ether methylol groups; (B) a polyhydric alcohol having 2 or more hydroxyl groups; and (C) a dispersion of colloidal silica, which can be condensed each other for the two or three components; and (D) a solvent.
Claim 2
Dependent Claim
62 words
1) A coating composition which comprises (A) an alkyl ether methylolmelamine in which a part or whole of methylol groups of methylolmelamine are converted into alkyl ether methylol groups; (B) a polyhydric alcohol having 2 or more hydroxyl groups; and (C) a dispersion of colloidal silica, which can be condensed each other for the two or three components; and (D) a solvent.
Claim 3
Dependent Claim
25 words
2) The coating composition according to Claim 1 wherein said dispersion of colloidal silica is a dispersion of a colloidal silica obtained from water glass.
Claim 4
Dependent Claim
21 words
3) The coating composition according to Claim 1 wherein said dispersion of colloidal silica is a dispersion in an organic solvent.
Claim 5
Dependent Claim
25 words
4) The coating composition according to Claim 1 wherein said colloidal silica has an average particle diameter ranging from 0 about 20 to 500 A.
Claim 6
Dependent Claim
23 words
5) The coating composition according to Claim 1 wherein said polyhydric alcohol has a molecular weight ranging from about 60 to 5, 000.
Claim 7
Dependent Claim
13 words
6) The coating composition according to Claim 1 which further comprises a catalyst.
Claim 8
Dependent Claim
27 words
7) The coating composition according to Claim 1 wherein the two or three components of (A), (B) and (C) are condensed in the presence of a catalyst.
Claim 9
Dependent Claim
23 words
8) The coating composition according to Claim 1 wherein the three components of (A), (B) and (C) are condensed at the same time.
Claim 10
Dependent Claim
26 words
9) The coating composition according to Claim 1 wherein said polyhydric alcohol is condensed with said colloidal silica and further said alkyl ether methylolmelamine is condensed.
Claim 11
Dependent Claim
32 words
10) The coating composition according to Claim 1, 7 or 8 wherein a gram equivalent ratio of said alkyl ether methylolmelamine to said polyhydric alcohol is 1 : 0. 5 - 2.
Claim 12
Dependent Claim
32 words
11) The coating composition according to Claim 1, 7 or 8 wherein a ratio of said polyhydric alcohol to said colloidal silica is . 1 : 0. 1 - 4 by weight.
Claim 13
Dependent Claim
21 words
12) A transparent plastic product having a hard coated layer formed by curing a coating composition set forth in Claim 1.
References Cited (Backward Citations)
No citation records indexed.
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