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:
Mar. 11, 1986
Filed:
May. 03, 1985
Applicant:
Inventors:
Michael B Cavitt, Lake Jackson, TX (US);
William O Perry, Lake Jackson, TX (US);
Robert E Hefner, Jr, Lake Jackson, TX (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
525510 ; 525523 ; 525528 ; 528 45 ; 528 73 ; 528 87 ;
Abstract
The viscosity of epoxy resins and phenoxy resins having an average weight average molecular weight of from about 1,700 to about 100,000 and containing an average of at least about 4.5 aliphatic hydroxyl groups per molecule is reduced by reacting said epoxy or phenoxy resin with a trihalomethyl acyl aromatic compound such as trichloroacetophenone in the presence of a tertiary amine such as triethylamine. These modified resins have particular utility in the preparation of coatings, adhesives, laminates, flooring and the like.