skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: 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:
 [1];  [2]
  1. Pasadena, CA
  2. La Crescenta, CA
Issue Date:
OSTI Identifier:
864103
Patent Number(s):
4310650
Assignee:
California Institute of Technology (Pasadena, CA)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08F - MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
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 = {1982},
month = {1}
}

Patent:

Save / Share: