POLYVINYL ALCOHOL FILM AND ITS PRODUCTION
PURPOSE:To produce a super-thin polyvinyl alcohol film having a thickness
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| creator | MATSUZAWA HIDEJI YAMAURA KAZUO |
| description | PURPOSE:To produce a super-thin polyvinyl alcohol film having a thickness |
| format | Patent |
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CONSTITUTION:An aqueous solution of polyvinyl alcohol of a syndiotactic fraction centent of 50-65% in a concentration of from about 1g/dl to the gelation concentration is extruded (inflation molding or extrusion inot a sheet) to produce an extremely thin polyvinyl alcohol film.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP |
| title | POLYVINYL ALCOHOL FILM AND ITS PRODUCTION |
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