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Title: 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:
 [1];  [2]
  1. Flintridge, CA
  2. 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):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08F - MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
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 = {1992},
month = {1}
}

Patent:

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