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:
May. 25, 2004
Filed:
Oct. 17, 2002
Applicant:
Inventors:
Robert M. Mortellite, Maineville, OH (US);
Thomas G. Mushaben, Cincinnati, OH (US);
Pai-Chuan Wu, Cincinnati, OH (US);
Assignee:
Clopay Plastic Products Company, Inc., Cincinnati, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 5/512 ;
U.S. Cl.
CPC ...
B29C 5/512 ;
Abstract
Thermoplastic film, microporous film, and laminates thereof, are made at high speeds on the order of about 500 fpm to about 1200 fpm. Bond strengths of film and nonwoven laminates are effectively controlled by air cooling devices which cause the air to flow substantially parallel to the extruded web during drawdown and provide a plurality of cooling air vortices to effectively cool the web. Film gauge control is also achieved by the method.