Process for the continuous production of pressure sensitive articles by coating a continuously fed web with two-component polyurethanes

A process for the continuous production of self-adhesive articles involves mixing polyol and isocyanate components, coating the mixture onto a carrier material (preferably moving at constant speed) which has been precoated with pressure-sensitive adhesive, hardening the polyurethane in a heated chan...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	BERNOTH, ANDREE, WAPPLER, ULRIKE, BECKMANN, ANDREAS, HIRSCH, RALF, SCHUEMANN, UWE
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL CHEMISTRY DYES METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL PAINTS PERFORMING OPERATIONS POLISHES PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL SPRAYING OR ATOMISING IN GENERAL TRANSPORTING USE OF MATERIALS AS ADHESIVES
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Beschreibung
Zusammenfassung:	A process for the continuous production of self-adhesive articles involves mixing polyol and isocyanate components, coating the mixture onto a carrier material (preferably moving at constant speed) which has been precoated with pressure-sensitive adhesive, hardening the polyurethane in a heated channel and winding the laminate onto a spool. An Independent claim is also included for single- or double-sided adhesive tape made by this process.