Abstract: The present application discloses a process for the preparation of metastable tetragonal zirconia in the form of an aerogel material, said material being capable of undergoing martensitic phase transformation to monoclinic zirconia. The application also discloses composite materials, such as dental filling materials, having included therein an aerogel material.

Abstract: The present application discloses a process for the preparation of metastable tetragonal zirconia in the form of an aerogel material, said material being capable of undergoing martensitic phase transformation to monoclinic zirconia. The application also discloses composite materials, such as dental filling materials, having included therein an aerogel material.

Abstract: The present invention relates to novel tracer substances useful in the analysis for semi-volatile organic contaminants (SVCs) such as PCBs (polychlorinated biphenyls). The invention also describes methods for establishing multilayered sealant barriers towards SVCs, which barriers contain said tracer substances, and methods for assessing the integrity of such barriers.

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

Abstract: The invention relates to a method of producing an article comprising an interpenetrating polymer network (IPN) and an IPN comprising article e.g. obtainable by this method. The method comprises providing a polymer substrate e.g. shaped to provide the desired article and applying it in a reaction chamber, providing at least one monomer for an interpenetrating polymer, exposing said polymer substrate in said reaction chamber to said at least one monomer in the presence of an impregnation solvent comprising CO2 under conditions wherein said CO2 is in its liquid or supercritical state and polymerizing and optionally cross linking said at least one monomer to form an interpenetrating polymer in the presence of a polymerization solvent under conditions wherein at least a part of said at least one monomer is dissolved in said polymerization solvent.

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

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

Abstract: The present invention relates to a method for producing delaminated/exfoliated non-ionic inorganic materials, to such materials and their use as additives.

Abstract: The present invention also relates to an anti-fouling composition comprising one or more aerogels. In one embodiment the aerogel encapsulate one or more bioactive agents. The one or more encapsulated bioactive agents can in one preferred embodiment be released from the aerogel over time. In one embodiment the encapsulated bioactive agents comprise one or more enzymes. In one preferred embodiment the anti-fouling composition comprising one or more aerogels is a coating composition.

Abstract: The invention relates to a method of producing an article comprising an interpenetrating polymer network (IPN) and an IPN comprising article e.g. obtainable by this method. The method comprises providing a polymer substrate e.g. shaped to provide the desired article and applying it in a reaction chamber, providing at least one monomer for an interpenetrating polymer, exposing said polymer substrate in said reaction chamber to said at least one monomer in the presence of an impregnation solvent comprising CO2 under conditions wherein said CO2 is in its liquid or supercritical state and polymerizing and optionally cross linking said at least one monomer to form an interpenetrating polymer in the presence of a polymerization solvent under conditions wherein at least a part of said at least one monomer is dissolved in said polymerization solvent.

Abstract: The invention relates to polymer foil comprising at least one polymer layer coated with a barrier glass coating of an oxide composition, wherein said oxide composition comprises the element Si in the form of an oxide network, the oxide composition preferably comprises Si and at least one other element X in an oxide network. The oxide network may preferably be applied using plasma. The foil may be a multi-layered foil comprising a plurality of layers, at least one of the layers being a barrier glass coating. The foil has good barrier properties.