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:
Mar. 21, 1989
Filed:
May. 06, 1987
Applicant:
Inventors:
Kinya Yokota, Shiga, JP;
Akinobu Ichihara, Kameoka, JP;
Assignee:
Dai-Ichi Kogyo Seiyaku Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
568608 ; 568609 ; 568616 ; 568654 ; 568615 ; 558 31 ; 558 33 ; 558 34 ; 558186 ; 252351 ;
Abstract
Novel surfactants of the formula: ##STR1## wherein R.sub.1 is alkyl, alkenyl, alkylaryl or aralkylaryl of 8-30 carbon atoms,