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:
Jun. 03, 1980
Filed:
Feb. 27, 1978
Applicant:
Inventor:
Helmut Korber, Odenthal, DE;
Assignee:
Bayer Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
525301 ; 525302 ; 525383 ; 525263 ;
Abstract
A continuous process for the production of graft polymers of oxidizable polymers as backbone and radically polymerizable monomers for forming the side chains, characterized in that an intensively stirred melt of the backbone polymer is brought into contact for at most 10 minutes with oxygen or oxygen-containing gases under a pressure of from 1 to 150 bars and at a temperature of from 100.degree. to 300.degree. C., immediately after which one or more radically polymerizable monomers is/are added with intensive stirring in the absence of oxygen and oxygen-containing gas, and after their polymerization the graft polymer formed is isolated.