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:
Jun. 28, 1977
Filed:
Apr. 26, 1976
Applicant:
Inventors:
Assignee:
Maruzen Oil Co. Ltd., Osaka, JA;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08L / ; C08L / ; C08F / ; C08J / ;
U.S. Cl.
CPC ...
2608 / ; 260 / ; 260879 ; 2608 / ; 260881 ; 260884 ; 260885 ; 260886 ; 528489 ; 528490 ; 528492 ;
Abstract
A process for purifying a halogenated alkenylphenol polymer by treating the polymer with an aqueous solution of a basic compound such as a hydroxide, carbonate, or hydrogen carbonate of an alkali metal, an alkylamine, or ammonium. By the treatment, low molecular weight halides, etc., contained in the halogenated polymer as impurities are effectively removed.