Biodegradable composite foil under home compost conditions

The invention relates to the use of an aqueous polyurethane dispersion adhesive for producing a composite foil which is biodegradable under home composting conditions, in which the application of the polyurethane dispersion adhesive bonds at least two substrates to each other, at least one of which...

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Bibliographische Detailangaben
Hauptverfasser:	LICHT ULRIKE, PIETSCH INES, SCHUMACHER KARL-HEINZ, HECKHOFF LARS
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES CHEMISTRY COMPOSITIONS BASED THEREON DYES LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PERFORMING OPERATIONS POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING USE OF MATERIALS AS ADHESIVES
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Beschreibung
Zusammenfassung:	The invention relates to the use of an aqueous polyurethane dispersion adhesive for producing a composite foil which is biodegradable under home composting conditions, in which the application of the polyurethane dispersion adhesive bonds at least two substrates to each other, at least one of which is a polymer foil which is biodegradable under home composting conditions. At least 60% by weight of the polyurethane consists of a diisocyanate, a polyester diol and at least one difunctional carboxylic acid selected from the group consisting of a dihydroxycarboxylic acid and a diaminocarboxylic acid, the polyurethane having a melting point of not higher than 20 DEG C or the polyurethane having a melting point of higher than 20 DEG C while having a melting enthalpy of less than 10 J/g, and wherein the film of polyurethane adhesive is biodegradable under home compost conditions. 描述了水性聚氨酯分散体粘合剂用于制备在家庭堆肥条件下可生物分解的复合箔的用途，其中施用所述聚氨酯分散体粘合剂将至少两个基材彼此粘接，其中至少一个基材是在家庭堆肥条件下可生物分解的聚合物箔。至少60重量％的所述聚氨酯由二异氰酸酯、聚酯二醇和至少一种选自二羟基羧酸和二氨基羧酸的二