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:
Aug. 29, 1978
Filed:
Jul. 27, 1976
Applicant:
Inventors:
Dieter Freitag, Krefeld, DE;
Erhard Tresper, Krefeld, DE;
Rolf Kuchenmeister, Krefeld, DE;
Wolfgang Beer, Krefeld, DE;
Assignee:
Bayer Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
568718 ; 568720 ; 528153 ; 528155 ; 528166 ;
Abstract
A process for the preparation of multinuclear phenols alkylated in the nucleus, wherein bisphenol A is reacted with a phenyl alkenyl compound in the presence of a catalytic quantity of aluminium phenolate and resols obtained from said alkylated phenols.
Freitag, Dieter. (1978). Process for the preparation of multinuclear phenols which are alkylated (U.S. Patent No. 4110540). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4110540
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile