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:
Dec. 13, 1977
Filed:
Nov. 17, 1975
Applicant:
Inventor:
Geoffrey Thomas Knight, Brickendonbury, EN;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K / ; C08K / ; C08L / ; C08L / ;
U.S. Cl.
CPC ...
260739 ; 260 / ; 260781 ; 260793 ; 260799 ;
Abstract
Natural rubber latex is treated with a para-nitrosoaniline in the presence of a metal dialkyldithiocarbamate in order to protect the rubber from oxidative degradation. A hydroxylamine salt is added to the rubber latex before, during or after the reaction to reduce coloration of the latex on storage.