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. 26, 1986
Filed:
Dec. 28, 1984
Applicant:
Inventors:
Stuart J Kurtz, Martinsville, NJ (US);
Ernest H Roberts, Somerset, NJ (US);
Peter J Lucchesi, Middlesex, NJ (US);
Assignee:
Union Carbide Corporation, Danbury, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
264556 ; 264171 ; 264237 ; 264284 ; 264348 ; 425 / ; 425224 ; 4253261 ;
Abstract
A process for reducing draw resonance of a polymeric molten film susceptible to draw resonance under conditions which would cause draw resonance by extruding the film from a die and rapidly cooling said film in a rapid cooling zone containing a pressure roll and chill roll by providing a tensioning device between said die and the nip of said pressure and chill roll, said tensioning device providing a substantially friction free surface with respect to said moving film.