发明授权
US4535104A Ultraviolet light stabilized copolyestercarbonate 失效
紫外光稳定的共聚酯碳酸酯

Ultraviolet light stabilized copolyestercarbonate
摘要:
A composition comprising an aromatic copolyestercarbonate article surface impregnated with an ultraviolet light degradation inhibiting effective amount of a compound of the formula ##STR1## wherein R is hydrogen or alkyl of one to twelve carbon atoms, inclusive.
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