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:
May. 03, 1983
Filed:
Sep. 29, 1980
Applicant:
Inventors:
Shizuyoshi Sakai, Hamamatsu, JP;
Tatsuo Fujinami, Hamamatsu, JP;
Kunio Kosugi, Iwata, JP;
Hiroshi Takemura, Nagoya, JP;
Michiaki Sagesaka, Shimada, JP;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
B01F / ;
U.S. Cl.
CPC ...
252356 ; 252351 ; 252357 ;
Abstract
A process for producing a polyether carbonate surface active material having hydrocarbon residue at terminal thereof in an efficient manner, wherein an active hydrogen-containing compound which has a hydrocarbon residue containing 4 or more of carbon atoms and a five-membered ring carbonic acid ester are telomerized in the presence of an ate-complex of a metal of Group II,III or IV of the periodic table having at least two alkoxy groups.