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:
Oct. 24, 1978
Filed:
Oct. 07, 1977
Applicant:
Inventor:
Terry Leroy Anderson, Louisville, KY (US);
Assignee:
Celanese Polymer Specialties Company, Louisville, KY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528 89 ; 260 / ; 260 13 ; 528 86 ; 528 88 ; 528 93 ; 528102 ; 528104 ;
Abstract
Polyhydroxypolyether resins are prepared by reacting in water as a dispersion an epoxide compound which has more than one 1,2-epoxy group per molecule with a dihydric phenol. The reaction is conducted in the presence of a nonionic dispersant at a temperature of about 80.degree. C. to about 100.degree. C. using, as a catalyst, an organic phosphine, a tertiary amine, or a quaternary ammonium or phosphonium compound. The polyhydroxypolyether resins are useful in coating compositions, molding compounds, encapsulating compositions, adhesives and the like.