Aerogel Aps

Encoat Aps

Girobank A?s

Eva Wallstrom

Kjeld Schaumburg

Arne Helgesen

Peter B Lund

The present invention relates to silica aerogels with a high to very high loading (55-90% w/w) of encapsulated biocidal and/or biorepellant compounds and very low thermal conductivity and to methods of making and using such aerogels in anti-fouling compositions, which are especially suitable for coatings (marine paints, coatings, sealants, lacquers, wood protection or similar controlled leaching systems) that are naturally exposed to humid conditions and/or water, including sea water, and thus prone to fouling.

Use of biocidal aerogel compositions in on-shore paints, coatings and sealants

The present invention relates to gel compositions comprising at least one entrapped active component.

Aerogel compositions

A flexographic printing ink comprising a solvent, a colorant, a binder and additives, wherein the solvent is essentially water; the colorant is a water-soluble dye or a mixture of such dyes dissolved in the solvent; the binder is selected from (meth)acrylic resins dispersed in the solvent at a pH above 7, preferably at pH about 8-9; and the additives include a wax selected from the group consisting of polyolefin waxes, paraffin waxes, and mixed polyolefin and paraffin waxes dispersed in the solvent. A flexographic printing ink concentrate for preparing this printing ink comprising the components mentioned above, wherein the amount of solvent is reduced by about 1-20%, preferably 5-20%, compared with the amount of solvent in a flexographic printing ink ready for use. A method for printing a substrate by the flexographic printing process which method comprises applying the flexographic ink to the substrate and subjecting the applied ink to conditions sufficient to fix the print, and substrate having a permanent print thereon which is derived from the flexographic printing ink.

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Copenhagen, Denmark

Eva Wallstrom