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US 7,479,653 B2Granted
UV curable protective encapsulant
AssigneeHenkel AG & Co. KGaA
InventorsStijn Gillissen, Grete Van Wuytswinkel
Life of this patent
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Abstract
The present invention discloses encapsulant materials for use in glob top and/or dam and fill applications comprising base oligomer/monomers preferably having an acrylated/methacrylated or vinylene-containing oligomer/polymer, one or more multifunctional acrylate monomers, one or more thixotropic agents and, optionally, fillers, additives, photoinitiators and/or pigments. The encapsulant has low levels of water absorption and shrinkage.
Claims14
An encapsulation composition comprising one or more base oligomer/polymers;
- one or more diacrylate monomers selected from the group consisting of tricyclodecane dimethanol diacrylate, hydroxypivalaldehyde modified trimethyloipropane diacrylate and mixtures thereof;
- one or more thixotropic agents;
- and one or more filler materials selected from the group consisting of spherical hollow glass beads, solid glass beads, talc, spherical silica and mixtures thereof.
Dependencies are inferred from the claim text.