ARTICLE HAVING PREDETERMINED SURFACE CONFIGURATION AND PRODUCTION PROCESS THEREFOR

A method for preparing an article having a predetermined surface shape, whic h comprises disposing a composition comprising a compound having a dimethylsiloxane skeleton having at least three repeating units and at least one polymerizable organic group in a molecule, between the surface of a substra...

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Bibliographische Detailangaben
Hauptverfasser:	HORI, MASAHIRO, NAKAMURA, KOICHIRO, SHIKATA, HIROKO, KAWADU, MITSUHIRO, YAMAMOTO, HIROAKI
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS GENERAL PROCESSES OF COMPOUNDING MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS 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:	A method for preparing an article having a predetermined surface shape, whic h comprises disposing a composition comprising a compound having a dimethylsiloxane skeleton having at least three repeating units and at least one polymerizable organic group in a molecule, between the surface of a substrate and the surface of a mold for forming, in a state of close contact with both of them, in the form of a film, applying at least one of heat and an ultraviolet ray to the above composition disposed in a film form, and then releasing the mold, and optionally heating thereafter, thereby forming an article comprising the substrate and a film which covers the surface of the substrate and has a surface of a shape obtained by inverting the surface sha pe of the above mold. The method can be used for preparing an article having a predetermined surface shape, such as an optical element which has a fine convex and concave surface having high heat resistance and exhibiting high dimensional accuracy due to reduced heat shrinkage during film formation.