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:
Jul. 20, 1976
Filed:
Jun. 28, 1974
Applicant:
Inventors:
Masayoshi Minai, Moriyama, JA;
Yoshio Suzuki, Itami, JA;
Noritaka Hamma, Sakai, JA;
Eiichi Murayama, Takarazuka, JA;
Shunji Aono, Toyonaka, JA;
Assignee:
Sumitomo Chemical Company, Limited, Osaka, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2605 / ; 2604 / ; 2604 / ; 424308 ; 424317 ;
Abstract
Novel compounds having the formula, ##SPC1## Wherein R.sub.1, R.sub.2 and R.sub.3 are each independently hydrogen or a C.sub.1 -C.sub.4 alkyl; n is an integer of 4-6; and Y is hydrogen or a group of the formula ##EQU1## wherein R.sub.1, R.sub.2 and R.sub.3 are as defined above. These compounds are produced, for example, by reacting a bisphenolic compound of the formula, ##SPC2## With chloroform and a ketone compound of the formula,