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. 15, 1988
Filed:
Oct. 09, 1986
Applicant:
Inventor:
Eckhard C Schwarz, Neehah, WI (US);
Assignee:
Biax Fiberfilm Corporation, Neenah, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
264517 ; 156167 ; 156175 ; 264230 ; 264D / ; 264D / ;
Abstract
There is disclosed a process and apparatus for melt blowing at an initial velocity of from 500 to 1000 feet per second a molten thermoplastic condensation polymer at a temperature less than 50.degree. C. above the melting point thereof to form fibers of high molecular orientation, and collecting the fibers to form a non-woven web. In one aspect of the present invention, the fibers are collected on a rotating mandrel and heat treated during collection or subsequent to collection.