发明授权
US5516920A 3-arylbenzofuranones 失效
3-芳基苯并呋喃酮

3-arylbenzofuranones
摘要:
The invention described novel compounds of formula ##STR1## wherein the general symbols are as defined in claim 1, as stabilisers for protecting organic materials, in particular polymers and lubricants, against thermal, oxidative or light-induced degradation.
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