FOERFARANDE FOER UPPLOESNING AV CELLULOSAKARBAMAT

The invention relates to cellulose carbamate solutions having improved capacity for fiber spinning or film formation therefrom. The addition of urea to the aqueous alkali in which the cellulose carbamate is dissolved results in an increase in the amount of cellulose carbamate that can be dissolved a...

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Bibliographic Details
Main Authors TURUNEN, OLLI T, HUTTUNEN, JOUKO, EKMAN, KURT, SELIN, JOHAN, EKLUND, VIDAR
Format Patent
LanguageFinnish
Published 08.12.1982
Edition3
Subjects
AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G
APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS
CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
DERIVATIVES THEREOF
GENERAL PROCESSES OF COMPOUNDING
METALLURGY
NATURAL OR ARTIFICIAL THREADS OR FIBRES
ORGANIC MACROMOLECULAR COMPOUNDS
POLYSACCHARIDES
SPINNING
TEXTILES
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
WORKING-UP
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Summary:The invention relates to cellulose carbamate solutions having improved capacity for fiber spinning or film formation therefrom. The addition of urea to the aqueous alkali in which the cellulose carbamate is dissolved results in an increase in the amount of cellulose carbamate that can be dissolved and a decrease in the viscosity and clogging number of the solution as compared to such solutions without urea.
Bibliography:Application Number: FI19820004215