US4295947A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photo-curable coating compositions for building materials
Assignee: Resonac Corp
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Filing: 1979-09-12
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Granted: 1981-10-20
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Expires: 1999-09-12
Abstract
Abstract A photo-curable coating composition for building materials which comprises (a) an isocyanate-modified epoxy ester obtained by the reaction of an acrylic or methacrylic ester of an epoxy compound having not less than two epoxy groups in the molecule with a polyisocyanate; (b) a photopolymerizable monomer being copolymerizable with the epoxy ester (a); (c) a ketone resin; (d) a photo-sensitizer; and (e) a sensitizing auxiliary.
Inventors
- 👤 Eiichi Ohtani
- 👤 Kengo Kobayashi
- 👤 Asao Isobe
- 👤 Shigeyoshi Tanaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:46
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/67; C08G18/675; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/34; C08F20/36; C08F299/00; C08F299/02; C08F299/06; C08G18/6705; C09; C09D; C09D175/00; C09D175/04; C09D175/14; C09D175/16; Y; Y10; Y10S; Y10S525/00; Y10S525/92; Y10S525/922
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
85 words
A photo-curable coating composition for building materials which comprises (a) an isocyanate-modified epoxy ester obtained by the reaction of an acrylic or methacrylic ester of an epoxy compound having not less than two epoxy groups in the molecule with a polyisocyanate; (b) a photopolymerizable monomer being copolymerizable with the epoxy ester (a); (c) a ketone resin formed by condensation of a ketone with an aldehyde; (d) a photo-sensitizer; and (e) a sensitizing auxiliary, the amounts of the constituents (a) to (e) being as follows: ##EQU2##
Claim 2
Dependent Claim
85 words
A photo-curable coating composition for building materials which comprises (a) an isocyanate-modified epoxy ester obtained by the reaction of an acrylic or methacrylic ester of an epoxy compound having not less than two epoxy groups in the molecule with a polyisocyanate; (b) a photopolymerizable monomer being copolymerizable with the epoxy ester (a); (c) a ketone resin formed by condensation of a ketone with an aldehyde; (d) a photo-sensitizer; and (e) a sensitizing auxiliary, the amounts of the constituents (a) to (e) being as follows: ##EQU2##
Claim 3
Dependent Claim
22 words
The photo-curable coating composition as claimed in claim 1 wherein the amounts of the constituents (a) to (e) are as follows: ##EQU3##
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) | 1984-10-19 | 1985-04-20 | 1985-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-19 | 1989-04-20 | 1989-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-19 | 1993-04-20 | 1993-10-20 | $7700.00 | Window Closed / Lapsed |