FIELD: chemistry.
SUBSTANCE: invention relates to pressure sensitive adhesives, suitable for use on a wide variety of substrates, including both high surface energy and low surface energy substrates. Pressure sensitive adhesives comprise an acrylate polymer and surface-modified nanoparticles. The surface-modified nanoparticles comprise a nanoparticle comprising a silica surface and surface modifying groups, covalently bonded to the silica surface of the nanoparticle. At least one surface modifying group is a polymeric silane surface modifying group. At least one surface modifying group is a non-polymeric silane surface modifying group.
EFFECT: disclosure also provides a method of preparing pressure sensitive adhesives, including exposing them to UVA and UVC radiation.
21 cl, 2 dwg, 12 tbl
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Authors
Dates
2015-07-27—Published
2011-04-19—Filed