Ultraviolet absorbing copolymers
Abstract
Photostable and weather stable absorping copolymers have been prepared from acrylic esters such as methyl methacrylate containing 0.1 to 5% of an 2-hydroxy-allyl benzophenone, preferably the 4,4' dimethoxy derivative thereof. The pendant benzophenone chromophores protect the acrylic backbone and when photoexcited do not degrade the ester side chain, nor abstract hydrogen from the backbone.
- Inventors:
-
- Pasadena, CA
- La Crescenta, CA
- Issue Date:
- OSTI Identifier:
- 864103
- Patent Number(s):
- 4310650
- 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
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- DOE Contract Number:
- NAS7100
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- ultraviolet; absorbing; copolymers; photostable; weather; stable; absorping; prepared; acrylic; esters; methyl; methacrylate; containing; 2-hydroxy-allyl; benzophenone; preferably; dimethoxy; derivative; pendant; chromophores; protect; backbone; photoexcited; degrade; ester; chain; nor; hydrogen; methyl methacrylate; /526/428/525/
Citation Formats
Gupta, Amitava, and Yavrouian, Andre H. Ultraviolet absorbing copolymers. United States: N. p., 1982.
Web.
Gupta, Amitava, & Yavrouian, Andre H. Ultraviolet absorbing copolymers. United States.
Gupta, Amitava, and Yavrouian, Andre H. Fri .
"Ultraviolet absorbing copolymers". United States. https://www.osti.gov/servlets/purl/864103.
@article{osti_864103,
title = {Ultraviolet absorbing copolymers},
author = {Gupta, Amitava and Yavrouian, Andre H},
abstractNote = {Photostable and weather stable absorping copolymers have been prepared from acrylic esters such as methyl methacrylate containing 0.1 to 5% of an 2-hydroxy-allyl benzophenone, preferably the 4,4' dimethoxy derivative thereof. The pendant benzophenone chromophores protect the acrylic backbone and when photoexcited do not degrade the ester side chain, nor abstract hydrogen from the backbone.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 1982},
month = {Fri Jan 01 00:00:00 EST 1982}
}