SURFACE HARDENED FILM

PROBLEM TO BE SOLVED: To improve durability of a surface hardened film by providing a laminating film wherein a polyester resin with a carboxylic acid and/or its salt on its side chain and a melamine crosslinking agent are main ingredients on at least one face of a polyester film and providing a sur...

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Bibliographic Details
Main Authors HIRATA JUN, MIMURA TAKASHI, TAKADA HAGUMU
Format Patent
LanguageEnglish
Published 20.05.1997
Edition6
Subjects
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
INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES
INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
WORKING-UP
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Summary:PROBLEM TO BE SOLVED: To improve durability of a surface hardened film by providing a laminating film wherein a polyester resin with a carboxylic acid and/or its salt on its side chain and a melamine crosslinking agent are main ingredients on at least one face of a polyester film and providing a surface hardened layer on this laminating film. SOLUTION: A laminating film wherein a polyester resin and a melamine crosslinking agent are main ingredients is provided on at least one race or a polyester film. A surface hardened layer is provided on this laminated film. The polyester resin being the constitutional ingredient of the laminating film has a carboxylic acid and/or its salt on its side chain. The polyester resin like this is obtd. by copolymerizing a polyester resin obtd. by polycondensation of a dicarboxylic acid with a diol and a polycarboxylic acid. In addition, 2-20 pts.wt. melamine crosslinking agnet are pref. mixed to 100 pts.wt. polyester resin. As the surface hardened layer, an active ray-curable type acrylic system is especially pref.
Bibliography:Application Number: JP19950293997