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:
Nov. 03, 1998
Filed:
Aug. 22, 1997
Taketoshi Kikuchi, Osaka, JP;
Naoki Inui, Nara, JP;
Kanako Fukuda, Kanako, JP;
Takashi Sanada, Chiba, JP;
Sumitomo Chemical Company, Limited, Osaka, JP;
Abstract
Phosphites which are a deterioration inhibitors for organic material represented by the formula: ##STR1## wherein R.sup.1 and R.sup.2 independently represent a hydrogen atom, or certain hydrocarbyl radicals; X represents a direct bond, a sulfur atom or a methylene group which may optionally be substituted; Z is --A.sup.1 --CO--O--Y.sup.1 or --A.sup.2 --O--CO--Y.sup.2 wherein A.sup.1 is a direct bond or an alkylene group; Y.sup.1 is aralkyl or aryl; A.sup.2 is a residue of a dihydric alcohol; and Y.sup.2 is alkyl, aralkyl or a phenyl group, and a process for producing the same are provided.