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:
Jan. 11, 1977
Filed:
Dec. 16, 1974
Klaus Dieter Hammer, Finthen, DT;
Wolfgang Klendauer, Wiesbaden, DT;
Hoechst Aktiengesellschaft, , DT;
Abstract
This invention relates to a process for the production of a shaped body from a cellulose derivative which comprises extruding a viscose solution through a shaping die into a precipitation bath and passing the shaped body thus formed through regenerating and washing baths, then treating the body with an acid aqueous solution of a secondary chemical plasticizer, drying it by heating, and finally moistening it with water after drying, said viscose solution being mixed with a liquid containing alkyl-trimethylol-urea of the following general formula ##STR1## wherein n is a whole number between 9 and 24, preferably between 14 and 19, and especially the number 17, and/or with a liquid containing alkyl-ethylene-urea of the following general formula ##STR2## wherein n is a whole number between 11 and 19, preferably between 15 and 18, and especially the number 17, or with a liquid containing alkylamine-bis-dimethylene-triazinonetetramethylol of the following general formula ##STR3## wherein n is a whole number between 9 and 24, preferably between 14 and 19, and especially the number 17, or with a liquid containing alkylamide-bis-dimethylene-triazinonetetramethylol of the following general formula ##STR4## wherein n is a whole number between 9 and 24, preferably between 14 and 19, and especially the number 17.