Photocurable acrylic composition, and U.V. curing with development of U.V. absorber
Abstract
In-situ development of an ultraviolet absorber is provided by a compound such as a hydroxy-phenyl-triazole containing a group which protects the absorber during actinically activated polymerization by light at first frequency. After polymerization the protective group is removed by actinic reaction at a second frequency lower than the first frequency. The protective group is formed by replacing the hydrogen of the hydroxyl group with an acyl group containing 1 to 3 carbon atoms or an acryloxy group of the formula: ##STR1## where R.sup.1 is either an alkyl containing 1 to 6 carbon atoms or --CH.dbd.CH.sub.2.
- Inventors:
-
- Flintridge, CA
- Pasadena, CA
- Issue Date:
- Research Org.:
- California Institute of Technology (CalTech), Pasadena, CA (United States)
- OSTI Identifier:
- 868441
- Patent Number(s):
- 5141990
- Assignee:
- California Institute of Technology (Pasadena, CA)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08F - MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
G - PHYSICS G03 - PHOTOGRAPHY G03F - PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES
- DOE Contract Number:
- AC03-83SF11944
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- photocurable; acrylic; composition; curing; absorber; in-situ; ultraviolet; provided; compound; hydroxy-phenyl-triazole; containing; protects; actinically; activated; polymerization; light; frequency; protective; removed; actinic; reaction; formed; replacing; hydrogen; hydroxyl; acyl; carbon; atoms; acryloxy; formula; str1; alkyl; -ch; dbd; carbon atoms; carbon atom; alkyl containing; /522/524/526/
Citation Formats
McKoy, Vincent B, and Gupta, Amitava. Photocurable acrylic composition, and U.V. curing with development of U.V. absorber. United States: N. p., 1992.
Web.
McKoy, Vincent B, & Gupta, Amitava. Photocurable acrylic composition, and U.V. curing with development of U.V. absorber. United States.
McKoy, Vincent B, and Gupta, Amitava. Wed .
"Photocurable acrylic composition, and U.V. curing with development of U.V. absorber". United States. https://www.osti.gov/servlets/purl/868441.
@article{osti_868441,
title = {Photocurable acrylic composition, and U.V. curing with development of U.V. absorber},
author = {McKoy, Vincent B and Gupta, Amitava},
abstractNote = {In-situ development of an ultraviolet absorber is provided by a compound such as a hydroxy-phenyl-triazole containing a group which protects the absorber during actinically activated polymerization by light at first frequency. After polymerization the protective group is removed by actinic reaction at a second frequency lower than the first frequency. The protective group is formed by replacing the hydrogen of the hydroxyl group with an acyl group containing 1 to 3 carbon atoms or an acryloxy group of the formula: ##STR1## where R.sup.1 is either an alkyl containing 1 to 6 carbon atoms or --CH.dbd.CH.sub.2.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jan 01 00:00:00 EST 1992},
month = {Wed Jan 01 00:00:00 EST 1992}
}
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