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. 04, 1980
Filed:
Sep. 12, 1977
Applicant:
Inventor:
Hans-Henning Nolte, Gelsenkirchen, DE;
Assignee:
BFG Glassgroup, Paris, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ;
U.S. Cl.
CPC ...
428539 ; 34 12 ; 156 87 ; 156245 ; 156102 ; 156246 ; 2105 / ; 264 86 ; 264 87 ; 4273 / ; 428920 ; 428921 ; 428432 ;
Abstract
A method of forming a layer of material from a solution containing the material and a solvent which comprises the steps of forming the solution into a layer, contacting at least one major face of the solution layer with a wall which is permeable over the area of that face substantially to the vapor phase only of the solvent, and effecting the escape of solvent simultaneously from both major faces of the layer including the one major face by vapor diffusion through the wall so as to set the layer.