ISSN:
0887-624X
Keywords:
two-component
;
polyurethane coatings
;
flame retardancy
;
modified polyester
;
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Two-component polyurethane flame-retardant coatings were prepared by blending chlorine-containing modified polyesters (DCAOs) and polyisocyanate. DCAOs used were synthesized by polycondensation of dichloroacetic acid, a flame-retardant aliphatic carboxylic acid, with 1,4-butanediol, trimethylolpropane, and adipic acid. The content of dichloroacetic acid was varied in 10, 20, and 30 wt % for the polycondensation reaction. Various physical properties of these new flame-retardant coatings were comparable to nonflame-retardant coatings. They showed desirable properties for flame-retardant coatings such as rapid drying and 8-10 hours of pot-life. Coatings with 30 wt % dichloroacetic acid were not fired by the vertical burning test. © 1996 John Wiley & Sons, Inc.
Additional Material:
10 Ill.
Type of Medium:
Electronic Resource
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