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:
Sep. 05, 1978
Filed:
Jul. 29, 1976
Applicant:
Inventors:
Hermann Richtzenhain, Much-Schwellenbach, DE;
Klaus Schrage, Konigswinter-Uthweiler, DE;
Assignee:
Dynamit Nobel Aktiengesellschaft, Cologne, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ; C07D / ;
U.S. Cl.
CPC ...
260 / ; 26034671 ;
Abstract
Brominated dibenzofuran of the formula ##STR1## WHEREIN X + Y = 6.0 TO 7.0 AND Y = 0 TO 0.3. The brominated dibenzofuran can be prepared by reaction of bromine and dibenzofuran at 0.degree. and 150.degree. C in the presence of halogenation catalyst. The products are useful as flameproofing agents for organic polymers, e.g. polyethylene.