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:
Sep. 10, 1991
Filed:
Nov. 19, 1985
Ingemar Uneback, Odsmal, SE;
Lars-Erik Noord, Stenungsund, SE;
Margreth Strandberg, Stenungsund, SE;
Berol Kemi AB, Stenungsund, SE;
Abstract
Cellulose derivative spinning solutions are provided, having an improved flow rate at comparable cellulose derivative content and pressure drop across the spinning nozzle, or a higher cellulose derivative content at comparable flow rate, comprising a cellulose derivative in solution in a solvent therefor, and a polyethylene glycol soluble in the solution and having an average molecular weight within the range from about 1.1 to about 4.5 million, in an amount to improve flow rate or increase cellulose derivative content; as well as a process for spinning such solutions through a spinning nozzle at improved flow rate or increased cellulose derivative content.