SOLVENTLESS LAMINATING ADHESIVE AND PROCESS FOR PRODUCTION OF COMPOSITE FILM

SOLVENTLESS LAMINATING ADHESIVE AND PROCESS FOR PRODUCTION OF COMPOSITE FILM

A SOLVENTLESS LAMINATING (1) ADHESIVE COMPRISING A POLYISOCYANATE COMPONENT AND A POLYOL COMPONENT, BOTH OF WHICH ARE FREE FROM POLYOL COMPONENTS EXHIBITING CRYSTALLINE PROPERTIES AT ORDINARY TEMPERATURES. THE ADHESIVE (23) EXHIBITS AN INITIAL VISCOSITY OF 500 TO 1000 MPA S THREE MINUTES AFTER MIXIN...

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Bibliographische Detailangaben
Hauptverfasser: UEMURA, TAKASHI, SASANO, SHIGETOSHI, KATAOKA, YASUHIKO
Format: Patent
Sprache:eng
Schlagworte:
APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
PERFORMING OPERATIONS
PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL
SPRAYING OR ATOMISING IN GENERAL
TRANSPORTING
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Beschreibung
Zusammenfassung:A SOLVENTLESS LAMINATING (1) ADHESIVE COMPRISING A POLYISOCYANATE COMPONENT AND A POLYOL COMPONENT, BOTH OF WHICH ARE FREE FROM POLYOL COMPONENTS EXHIBITING CRYSTALLINE PROPERTIES AT ORDINARY TEMPERATURES. THE ADHESIVE (23) EXHIBITS AN INITIAL VISCOSITY OF 500 TO 1000 MPA S THREE MINUTES AFTER MIXING OF THE POLYISOCYANATE COMPONENT WITH THE POLYOL COMPONENT AND A VISCOSITY INCREASE OF 100 TO 350% BASED ON THE INITIAL VISCOSITY 20 MINUTES AFTER THE MIXING. IN A COATER WHICH IS PROVIDED WITH A PAIR OF OPPOSED ROLLS AND IN WHICH THE ROLLS ROTATES IN THE DIRECTIONS CONTRARY TO EACH OTHER AT THE OPPOSITION SITE, THE ADHESIVE (23) IS APPLIED TO A FILM PASSING BETWEEN THE ROLLS. (FIGURE 1)