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:
Jun. 27, 1989
Filed:
Feb. 02, 1988
Applicant:
Inventors:
Hans-Joachim Merrem, Seeheim-Jugenheim, DE;
Werner Graf, Burghausen, DE;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05D / ;
U.S. Cl.
CPC ...
427387 ; 4273881 ; 4273977 ; 427409 ; 1062871 ;
Abstract
A coating solution for producing glassy layers on a substrate comprises a silicic acid ester, an aliphatic alcohol as a solvent, an acid in a catalytically active quantity, and water. The alcohol contains at least 4 carbon atoms and the acid has a pK.sub.a of less than +3. The viscosity of the coating solution is table even at elevated temperatures and the amount of water added is increased. The glassy layers produced from the coating solution exhibit no striations.