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:
Mar. 20, 1979
Filed:
Jul. 20, 1977
Motonobu Minagawa, Koshigawa, JP;
Yutaka Nakahara, Iwatsuki, JP;
Masayuki Takahashi, Tokorozawa, JP;
Argus Chemical Corporation, Brooklyn, NY (US);
Abstract
Synthetic resins such as polyolefins, vinyl chloride polymers, ABS polymers, ethylene-vinyl acetate copolymers and polyesters are stabilized against deteriorating influences with new stabilizer compositions comprising certain hydroxyphenylalkylenephosphonic acid esters of polycarbocyclic polyhydroxy compounds having the general formula (1) ##STR1## (wherein, R.sub.1 denotes alkyl or cycloalkyl, R.sub.2 and R.sub.3 denote a hydrogen atom, alkyl or cycloalkyl. R.sub.4 denotes alkyl, cycloalkyl, arylalkyl, aryl, alkylaryl, alkylpolyoxyalkylene or a residue of polyhydricphenol. A is a residue of polynuclearpolyhydric phenol or hydrogenated derivative thereof of from 2 to 4 valent. n is 1 to 8. m is 1 to 5. L is 0, 1 or 2. X is a hydrogen atom or ##STR2##