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:
Jun. 02, 1987
Filed:
Feb. 21, 1984
Applicant:
Inventors:
Assignee:
Toa Nenryo Kogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; D01D / ;
U.S. Cl.
CPC ...
264 39 ; 264 85 ; 264169 ; 4234476 ; 4234477 ; 425 / ; 4253 / ;
Abstract
In a melt spinning operation, a heated wash gas such as nitrogen or nitrogen and air is blown across the melt spinning nozzles to remove volatiles thereby preventing wetting of the nozzle discharge. The wash gas is maintained at a temperature substantially equal to the melt spinning temperature. The preferred melt spinning material is petroleum pitch.