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. 11, 1976
Filed:
Jun. 10, 1974
Applicant:
Inventors:
Milton L Honig, New York City, NY (US);
Edward D Weil, Hastings-on-Hudson, NY (US);
Assignee:
Stauffer Chemical Company, Westport, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F / ; C08G / ;
U.S. Cl.
CPC ...
260971 ; 260 / ; 260 / ; 260 79 ; 260928 ; 260929 ; 260930 ; 526 14 ; 526 54 ; 526278 ;
Abstract
A process is disclosed for forming polymers and oligomers containing the repeating unit ##EQU1## where R is selected from the group consisting of hydrogen and hydrocarbyl, preferably C.sub.1 -C.sub.4 alkyl groups, e.g., methyl and ethyl, and R' is an alkylene group, e.g., a C.sub.2 -C.sub.4 alkylene group, a substituted alkylene group, or an alkylene group having one or more O, S, arylene or vinylene group interruptions in its aliphatic chain. It comprises the transalkylation of a dihalide compound of the formula: