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. 19, 1981
Filed:
Jun. 16, 1980
Applicant:
Inventors:
Assignee:
Bayer Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
525485 ; 260 / ; 260 / ; 260 / ; 260 / ; 260 / ; 260 / ; 260 / ; 525481 ; 528141 ; 528142 ; 528153 ;
Abstract
A process for the preparation of resol resins by reacting bisphenol A with 1.2 to 1.8 moles of formaldehyde in the presence of n-butanol or isobutanol and in the presence of a tri-alkali metal phosphate as a catalyst, and their use, optionally combined with epoxy resins, for the preparation of deep-drawable, sterilizable and chemically resistant lacquer films.