ETHYLENE-VINYL ESTER COPOLYMER SAPONIFIED COMPOSITION AND MULTILAYER STRUCTURE PRODUCED USING THE COMPOSITION

PROBLEM TO BE SOLVED: To provide an EVOH resin composition, which has good coloring resistance and heat resistance at high temperatures and good adhesion with thermoplastic resin compositions, and can provide a multilayer structure with good appearance, and the multilayer structure containing the co...

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Bibliographische Detailangaben
1. Verfasser:	KANI SHOICHI
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 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
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an EVOH resin composition, which has good coloring resistance and heat resistance at high temperatures and good adhesion with thermoplastic resin compositions, and can provide a multilayer structure with good appearance, and the multilayer structure containing the composition layer.SOLUTION: The composition contains (A) an EVOH resin, (B) an alkaline earth metal, (C) an alkali metal, and (D) a 2 to 4C carboxylic acid, which satisfies requirement (α): the content of the (B) alkaline earth metal in the EVOH resin (A) is more than 10 to 50 ppm, requirement (β): the content ratio (C/B) of the alkali metal (C) to the alkaline earth metal (B) ranges from 0.001 to 0.5, and requirement (γ): the content ratio (D/B) of the 2-4C carboxylic acid (D) to the alkaline earth metal (B) ranges from 5 to 30.