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:
Jan. 07, 1986
Filed:
Jul. 23, 1984
Applicant:
Inventors:
Manfred Gillner, Aachen, DE;
Juergen Sieckmann, Aachen, DE;
Assignee:
Saint-Gobain Vitrage, Courbevoie, FR;
Primary Examiner:
Int. Cl.
CPC ...
B29D / ;
U.S. Cl.
CPC ...
4284233 ; 264-17 ; 264-23 ; 264-24 ; 264 39 ; 264101 ; 264132 ; 26433119 ; 264338 ; 350321 ; 425101 ; 425115 ;
Abstract
The invention relates to the production of transparent plastic films, sheets or strips of excellent optical quality. It proposes a process for producing these products by casting of a composition suitable for casting on a horizontal, plane casting support, in continuous movement to obtain at least a layer, which after it has consolidated, is detached from its support, turned over, then by casting a composition on the face of the first layer which, when being formed, initially was in contact with the support, to obtain a second layer, the first layer being placed on a horizontal, plane casting support.