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. 11, 1985
Filed:
Sep. 13, 1984
Applicant:
Inventors:
Raymond Commandeur, Vizille, FR;
Bernard Gurtner, Grenoble, FR;
Assignee:
Atochem, Courbevoie, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
585 11 ; 585 19 ; 585 25 ; 585320 ; 585326 ; 585469 ;
Abstract
Polyarylalkane oligomer compositions comprising a mixture of two oligomers A and B, wherein oligomer A is a mixture of isomers of formula: ##STR1## with n1 and n2=0, 1 and 2, given that n1+n2.ltoreq.3; and oligomer B is a mixture of isomers of formula: ##STR2## with n'1, n'1 and n4=0, 1 and 2, n'2, n'2, n3, n'3 and n5=0 and 1, given that n'1+n'1+n'2+n'2+n3+n'3+n4+n5.ltoreq.2. The invention also comprises the process for the preparation of said oligomer compositions by the action of a halide or inorganic acid on a product of free-radical chlorination of toluene.