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:
Feb. 21, 1978
Filed:
Mar. 19, 1976
Applicant:
Inventors:
Kurt Hofer, Muenchenstein, CH;
Guenther Tscheulin, Frick, CH;
Assignee:
Sandoz Ltd., Basel, CH;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K / ; C08K / ;
U.S. Cl.
CPC ...
260 / ; 106177 ; 260 / ; 260 / ; 260932 ; 260962 ;
Abstract
The purpose of the invention are new benzene phosphonous acid compounds in which two to four benzene nuclei are bound together and which contain one to three phosphorus atoms. The new compounds are free acids, their salts with inorganic cations, their esters, thioesters or amides. The invention concerns also the manufacture of these benzene phosphonous acid compounds and their use for the stabilization of organic materials.