The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 16, 1985
Filed:
Jul. 15, 1983
Sumitomo Chemical Co., Ltd., Osaka, JP;
Abstract
Phenolic compounds and methods of producing such phenolic compounds are disclosed, said compounds being of the formula: ##STR1## wherein n' is an integer from 1 to 3, and R.sub.1 is a hydrogen atom, or an alkyl group having 1 to 4 carbon atoms or an acyl group having 1 to 5 carbon atoms. These compounds are suitable as stabilizers for synthetic resins with at least one sulfur compound of the following formulas: ##STR2## wherein R.sub.2 is an alkyl group having 4 to 20 carbon atoms, and ##STR3## wherein R.sub.3 is an alkyl group having 3 to 18 carbon atoms, and R.sub.4 and R.sub.5 each independently is a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, in the ratio (I):(II) of 1:0.5-15 by weight.