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:
Jan. 20, 1981
Filed:
Oct. 02, 1978
Applicant:
Inventors:
Egon N Peterson, Neunkirchen-Seelscheid, DE;
Hermann Richtzenhain, Much-Schwellenbach, DE;
Assignee:
Dynamit Nobel Aktiengesellschaft, Troisdorf, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2604 / ; 568637 ; 568776 ; 568 / ; 260 4575 ; 260 / ;
Abstract
Aryl sulfonic acid esters of the formula ##STR1## wherein R.sup.1 represents hydrogen, alkyl groups of 1 to 8 carbon atoms, bromine or chlorine, R.sup.2 represents R.sup.1 or the group ##STR2## Hal represents bromine or chlorine, x the numbers 2 to 4, n the numbers 3 to 5, y the numbers 4-x; m=5-n, R.sup.3 represents bromine, chlorine or the group ##STR3## and Z represents --O--, --S--, ##STR4## alkylene with 1 to 4 carbon atoms, or alkylidene; a process for their product and their use as a flame retardant, especially for polyolefins.