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. 22, 1990
Filed:
Nov. 14, 1988
Applicant:
Inventor:
Gary W Bogan, Lake Jackson, TX (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528205 ; 528171 ;
Abstract
Hydrocarbon-aromatic hydroxyl-containing resins are prepared by (1) reacting an unsaturated hydrocarbon with an aromatic hydroxyl-containing compound in the presence of a Lewis acid, (2) neutralizing said Lewis acid with an inorganic base and (3) removing the unreacted aromatic hydroxyl-containing compound therefrom.