PU adhesives for sterilizable composite films

The invention relates to the use of a solvent-free, 2 component adhesive for adhering sterilizable composite films, wherein the adhesive comprises a component A made from at least one pre-polymer comprised of NCO groups, said pre-polymer produced from low molecular weight polyether alcohols, polyest...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	BIALAS NORBERT, MATUSIK PATRIK, LOHR CHRISTOPH, BRENGER ANDREAS, KAMM THOMAS, KOLLBACH GUIDO
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY DYES LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL PAINTS PERFORMING OPERATIONS POLISHES SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING USE OF MATERIALS AS ADHESIVES WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The invention relates to the use of a solvent-free, 2 component adhesive for adhering sterilizable composite films, wherein the adhesive comprises a component A made from at least one pre-polymer comprised of NCO groups, said pre-polymer produced from low molecular weight polyether alcohols, polyester alcohols and/or polyalkylene alcohols having a functionality of 2 or 3, implemented having a high molar excess of TDI and removal of the unimplemented monomer diisocyanate, and a component B comprising at least one 2 or 3 functional polyesterpolyol, produced from diols and/or triols on the basis of polyethers or polyalkylene diols implemented having dicarboxylic acids and derivatives thereof, wherein at least 10 to 40 wt % must be comprised of aliphatic C8 to C20 dicarboxylic acids, and auxiliary and additive materials in at least one component A or B.