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. 12, 1994
Filed:
Mar. 29, 1993
Applicant:
Inventors:
Billy M Culbertson, Worthington, OH (US);
Omar Tiba, Dublin, OH (US);
Gilbert M Gynn, Dublin, OH (US);
Assignee:
Ashland Oil, Inc., Russell, KY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ; C08G / ; C08G / ;
U.S. Cl.
CPC ...
528153 ; 528148 ; 528149 ; 528150 ; 528154 ; 528155 ; 528158 ; 528162 ; 528163 ; 528172 ; 528208 ; 528210 ; 528212 ;
Abstract
A process for preparing a polymeric composition comprising reacting a mixture of at least one phenolic compound and at least one oxazoline compound in the presence of a catalytic amount of at least one ammonium salt and a tetracarbyl phosphonium salt, and optionally also in the presence of an alkyl halide is described.