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:
Dec. 07, 1999
Filed:
May. 19, 1998
Applicant:
Inventors:
Gerardus Hendricus Vos, Westervoort, NL;
Bernardus Maria Koenders, Westervoort, NL;
Hanneke Boerstoel, Arnhem, NL;
Assignee:
Michelin Recherche et Technique S.A., Granges-Paccot, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D01D / ; D01F / ; D01F / ;
U.S. Cl.
CPC ...
264187 ; 26421112 ; 26421115 ; 26421116 ; 264233 ; 264234 ;
Abstract
The disclosure describes a process for the preparation of regenerated cellulose filaments from an anisotropic solution including cellulose formate, phosphoric acid, and formic acid in which the formed cellulose formate filaments are dried to a moisture content of not more than 15% prior to regeneration and after regeneration the filaments are washed and dried under low tension. In this manner cellulose multifilament yarns of high breaking load and high elongation at break can be obtained, which in addition have a very regular linear density.