PROCESS FOR PREPARING THERMOPLASTICALLY WORKABLE GRANULATE OF POLYVINYL ALCOHOL

A process for preparing thermoplastically workable granulate of polyvinyl alcohol with content of current softeners and admixtures into plastic is solved. Optimal modification of polyvinyl alcohol and low content of water is reached by a variation of press and temperature during a softening. Given s...

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Bibliographic Details
Main Authors BENC GABRIEL, CERVINKOVA DANICA, VARGA ALEXANDER, SKUBLA PAVOL
Format Patent
LanguageEnglish
Published 11.05.1994
Edition5
Subjects
AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G
CHEMISTRY
COMPOSITIONS BASED THEREON
GENERAL PROCESSES OF COMPOUNDING
MAKING GRANULES OR PREFORMS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PERFORMING OPERATIONS
PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED
RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS
THEIR PREPARATION OR CHEMICAL WORKING-UP
TRANSPORTING
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
WORKING-UP
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Summary:A process for preparing thermoplastically workable granulate of polyvinyl alcohol with content of current softeners and admixtures into plastic is solved. Optimal modification of polyvinyl alcohol and low content of water is reached by a variation of press and temperature during a softening. Given solution enables to obtain the granulate of thermoplastic polyvinyl alcohol suitable especially for the production of water-soluble foils by technology of blowing out.
Bibliography:Application Number: SK19920000700