JPH05287094

• Main Authors: ENOKIDA AKIRA, TSURUSAKI YOSHIYUKI
• Format: Patent
• Language: English
• Published: 02.11.1993
• Edition: 5
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; 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; PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; SPRAYING OR ATOMISING IN GENERAL; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING-UP

PURPOSE:To provide a biaxially stretched polyamide film excellent in slipperiness and improved in transparency and antistatic properties. CONSTITUTION:At least one surface of a nonstretched polyamide film or a monoaxially stretched polyamide film stretched in the longitudinal direction thereof is coated with a 0.1 to 10wt.% aq. soln. of a polyoxyethylene alkylphenyl ether. The coated film is then stretched to obtain a surface-coated polyamide film having a coating layer thickness of 0.002mum to 0.2mum, a dynamic friction coefficient of at most 0.5 on the side of the coated surface, a haze of at most 5.0%, and a distance of at most 15mm as measured in an ashing test. Alternatively, a biaxially stretched film may be coated with the above aq. soln.