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. 31, 1976
Filed:
Jul. 30, 1973
Applicant:
Inventors:
Erhard Seiler, Ludwigshafen, DT;
Gerhard Fahrbach, Schwetzingen, DT;
Dieter Stein, Limburgerhof, DT;
Assignee:
Badische Anilin- & Soda-Fabrik Aktiengesellschaft, Ludwigshafen (Rhine), DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ; C08L / ;
U.S. Cl.
CPC ...
260874 ; 260 / ; 260887 ; 260901 ;
Abstract
Manufacture of low molecular weight block copolymers of vinyl or diene monomers and alkylene oxides. In a first stage, the vinyl or diene monomers are polymerized as chain stopper, and in a second stage, one or two blocks A are added thereto by the addition of further alkylene oxide. The resulting block copolymers may be used as prepolymers for the manufacture of polyurethanes, as dispersing agents for dyes, as antistatic agents, emulsifiers, surfactants or as paper and textile finishing agents.