发明授权
US5693829A Benzofuran-2-ones as stabilizers 失效
苯并呋喃-2-酮作为稳定剂

Benzofuran-2-ones as stabilizers
摘要:
The invention relates to compounds of formula I ##STR1## wherein the general symbols are as defined in claim 1, as stabilizers for protecting organic materials against thermal, oxidative or light-induced degradation.
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