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:
Apr. 07, 1992
Filed:
Jun. 13, 1991
Applicant:
Inventors:
Assignees:
Sekisui Chemical Co., Ltd., Osaka, JP;
Other;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
526209 ; 526332 ; 526333 ;
Abstract
A process for preparing a three-branched or four-branched star compound comprising polymerizing an olefine compound represetned by the formula ##STR1## wherein A is a signle bond or phenylene group, and R.sup.3 is a hydrogen atom or methyl group and R.sup.4 is a monovalent organic group when A is a signle bond, or R.sup.3 is a hydrogen atom and R.sup.4 is an alkyl group when A is a phenylene group, using the adduct of a polyfunctional alkenyl ether represetned by the formula (I)