BLENDED BLOCK COPOLYMER/SILICONE PRESSURE SENSITIVE ADHESIVES

There is provided a pressure sensitive adhesive demonstrating adhesion to low energy surfaces which is a radiation-crosslinked mixture of a first component comprising a blend of a nonfunctionalized polysiloxane and a silicate-based tackifier; and a second component comprising a blend of a styrenic b...

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Bibliographische Detailangaben
1. Verfasser:	WAID, Robert D
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES CHEMISTRY DYES METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL PAINTS POLISHES USE OF MATERIALS AS ADHESIVES
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Beschreibung
Zusammenfassung:	There is provided a pressure sensitive adhesive demonstrating adhesion to low energy surfaces which is a radiation-crosslinked mixture of a first component comprising a blend of a nonfunctionalized polysiloxane and a silicate-based tackifier; and a second component comprising a blend of a styrenic block copolymer and a tackifier compatible with the styrenic block copolymer. In some embodiments the weight ratio of nonfunctionalized polysiloxane to styrenic block copolymer.in the mixture is between 0.20 and 1.15. In some embodiments the tackifier compatible with the styrenic block copolymer is a blend of hydrogenated hydrocarbon resin tackifier and terpene-based tackifier in a weight ratio of greater than 0.75 hydrogenated hydrocarbon resin tackifier to terpene-based tackifier.