Abstract: A composition contains silicic acid polycondensate modified with organic groups, as a coating for medicines and foodstuffs or as a component in such a coating. The organic groups are partially or wholly biodegradeable. A method for producing a product coated with the composition and a coated product are further described.

Abstract: A composition contains silicic acid polycondensate modified with organic groups, as a coating for medicines and foodstuffs or as a component in such a coating. The organic groups are partially or wholly biodegradeable. A method for producing a product coated with the composition and a coated product are further described.

Abstract: A composition contains silicic acid polycondensate modified with organic groups, as a coating for medicines and foodstuffs or as a component in such a coating. The organic groups are partially or wholly biodegradeable. A method for producing a product coated with the composition and a coated product are further described.

Abstract: A composite material includes a polysiloxane-containing matrix, a dispersant, and dispersed particles. The polysiloxane-containing matrix has a higher refractive index and a higher surface tension than the dispersant in the non-cured state, is produced using two different silanes, and has aromatic groups and organic groups, the latter of which can be bridged together via a bridging agent. Both of the aromatic groups as well as the bridgable organic groups are bonded to a silicon atom via carbon, and the matrix has a bridging agent with two reactive groups for bridging the organically bridgable groups and a catalyst for a bridging reaction such that the organically bridgable groups are reacted with the bridging agent via an addition reaction in the cured state. The dispersant has either groups which can be organically cross-linked thermally and/or under the effect of light or Si—H groups and (ii) aromatic groups.

Abstract: The present invention relates to a special heteropolymer, namely a silicic acid (hetero)poly(co)condensate with positive-resist behavior which is distinguished by polycondensation or copolycondensation of specially modified silanes. The invention relates likewise to monomeric silanes from which the corresponding heteropolymers, i.e. the silicic acid (hetero)poly(co)condensates, can be produced. The silicic acid (hetero)poly(co)condensates according to the invention can be used for a photoresist which has positive-resist behavior. In addition, the invention relates to corresponding methods both for the production of the silanes, the silicic acid (hetero)poly(co)condensates or a method for photochemical structuring of the photoresist according to the invention which is based on the silicic acid (hetero)poly(co)condensates.

Abstract: The present invention relates to a special heteropolymer, namely a silicic acid (hetero)poly(co)condensate with positive-resist behaviour which is distinguished by polycondensation or copolycondensation of specially modified silanes. The invention relates likewise to monomeric silanes from which the corresponding heteropolymers, i.e. the silicic acid (hetero)poly(co)condensates, can be produced. The silicic acid (hetero)poly(co)condensates according to the invention can be used for a photoresist which has positive-resist behaviour. In addition, the invention relates to corresponding methods both for the production of the silanes, the silicic acid (hetero)poly(co)condensates or a method for photochemical structuring of the photoresist according to the invention which is based on the silicic acid (hetero)poly(co)condensates.