FILM-FORMING METHOD

PROBLEM TO BE SOLVED: To increase a film forming speed in soln. film-forming and to obtain a film or sheet-shaped molded object excellent in surface properties or flatness. SOLUTION: An org. polymer soln. is cast on a support and a solvent is removed to obtain a film or sheet-shaped molded object. I...

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Bibliographische Detailangaben
Hauptverfasser:	YASHIRO TOSHIYA, TSUKUDA AKIMITSU, NISHIHARA KENTA
Format:	Patent
Sprache:	eng
Schlagworte:	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 METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS 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
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To increase a film forming speed in soln. film-forming and to obtain a film or sheet-shaped molded object excellent in surface properties or flatness. SOLUTION: An org. polymer soln. is cast on a support and a solvent is removed to obtain a film or sheet-shaped molded object. In this case, a solvent having compatibility with respect to the solvent mainly used in the org. polymer soln. is interposed between the support and the cast org. polymer soln. film so that soln. film thickness t (μm) and cast polymer thickness T (μm) satisfy the relation of formula 0.001