POLYAMIDE-BASED FILM AND LAMINATE

PROBLEM TO BE SOLVED: To obtain both a polyamide-based resin and a laminate having excellent dimensional stability to water. SOLUTION: This polyamide-based resin film has <=2.0% dimensional change ratio in both the longitudinal direction and the traverse direction in 60% relative humidity change....

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Bibliographic Details
Main Authors IWANISHI MASUMI, MORISHIGE CHIKAO, SATO MASAYOSHI, SUGIMOTO MASANORI, YONEDA SHIGERU
Format Patent
LanguageEnglish
Published 12.09.2000
Edition7
Subjects
AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G
CHEMISTRY
COMPOSITIONS BASED THEREON
GENERAL PROCESSES OF COMPOUNDING
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
THEIR PREPARATION OR CHEMICAL WORKING-UP
TRANSPORTING
WORKING-UP
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Summary:PROBLEM TO BE SOLVED: To obtain both a polyamide-based resin and a laminate having excellent dimensional stability to water. SOLUTION: This polyamide-based resin film has <=2.0% dimensional change ratio in both the longitudinal direction and the traverse direction in 60% relative humidity change. This laminate comprising the film has excellent dimensional stability to water. The polyamide-based resin film is obtained by combining a low hygroscopic polyamide-based resin with an aliphatic polyamide-based resin and using the combined film or using a specific noncrystalline polyamide. Consequently not only the dimensional change ratio is satisfied but also characteristics of polyamide-based resin such as gas barrier properties, resistance to fatigue from flexing, etc., can be retained.
Bibliography:Application Number: JP19990053130