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:
Aug. 05, 1980
Filed:
Oct. 05, 1978
Applicant:
Inventors:
Victor F De Beul, Mortsel, BE;
Jan H Van Hove, Berchem, BE;
Assignee:
AGFA-GEVAERT N.V., Mortsel, BE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ; G03C / ;
U.S. Cl.
CPC ...
430496 ; 427358 ; 427420 ; 427 44 ; 430531 ; 430935 ;
Abstract
In an extrusion coating process of the flow-stretch type in which a ribbon of an aqueous gelatin coating composition is extruded through an elongated orifice onto a moving support and becomes stretched and attenuated in thickness between the orifice and support, at least one visco-elasticity enhancing agent is added to the coating composition in sufficient amount as to disproportionately increase the elasticity of the composition compared to its viscosity so as to render the composition stretchable at viscosities which are substantially reduced compared to what would otherwise be necessary for flow-stretch coatability.