FOAMED ADHESIVE, MORE PARTICULARLY PRESSURE-SENSITIVE ADHESIVE, PROCESS FOR THE PRODUCTION AND ALSO THE USE THEREOF
Process for producing a pressure-sensitive adhesive comprising expanded microballoons, wherein the constituients for forming the adhesive are mixed in a first mixing assembly, the mixed adhesive is transferred into a second mixing assembly into which, at the same time, unexpanded microballoons are f...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | Process for producing a pressure-sensitive adhesive comprising expanded microballoons, wherein the constituients for forming the adhesive are mixed in a first mixing assembly, the mixed adhesive is transferred into a second mixing assembly into which, at the same time, unexpanded microballoons are fed, the microballoons are expanded in the second mixing assembly or on exit from the second mixing assembly, the adhesive mixture with the expanded microballoons is shaped to a layer in a shaping assembly in which expanded microballoons which have broken through the surface are pressed into the layer surface and the layer of adhesive mixture together with the expanded microballoons are optionally applied to a weblike backing material. |
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