Abstract: The present invention concerns a silane of formula (1) R1aSIR4-a??(1) where the group R1 or each of the groups R1 independently is bound to the silicon via an oxygen atom, comprises a straight or branched hydrocarbonaceous chain having one or more elements, wherein (a) each of the elements has not more than 8 consecutive carbon atoms, each of plural elements of the hydrocarbonaceous chain being separated from the next element by a cleavable group and/or (b) the elements have one or more cleavable groups and any hydrocarbonaceous chains remaining upon cleavage of said group(s) are water soluble, wherein said cleavable groups are selected from ester, anhydride, amide, carbonate, carbamate, ketal, acetal, disulfide, imine, hydrazone and oxime groups, has at least one thiol or a primary or secondary amino group, the group R or each of the groups R is independently a hydrolytically condensable group, and a is 1,2,3 or 4.

Abstract: A three-dimensional scaffold structure and a process for its manufacture. The scaffold structure has a polymer system obtainable by photostructuring a starting material containing precursor molecules or inorganic polymers thereof having an organically polymerizable radical with at least one C?C double bond, an inorganically polymerizable silane-based radical and a functional group or derivative thereof.

Abstract: The invention relates to a method for producing a shaped body by means of a radiation-induced printing process according to the technique of the one-photon polymerization process, characterized in that the shaped body is produced by solidifying a liquid or viscous material which contains a polysiloxane component produced by hydrolytic condensation of one or more monomeric silanes having exclusively two or three hydrolyzable groups and at least one organically polymerizable radical being bonded to the silicon atom via carbon, and contains an initiator and/or catalyst for the radiation-induced polymerization of the organically polymerizable residue, and the solidification is effected by directing light onto a region of a surface of a substrate, whereby a layer of the material located there is polymerized and thereby solidified, whereupon further layers are successively solidified.

Abstract: The invention relates to a shaped body and a process for its production by means of a radiation-induced printing process, characterized in that the shaped body is produced from a liquid or viscous material which contains a starting component with cycloolefinic groups, a thiol with at least two thiol groups per molecule and an initiator and/or catalyst for the light-induced thiol-ene addition reaction between the thiol groups and a double bond of the cycloolefinic groups, and the solidification takes place by directing light from a radiation source onto a region of a surface of a substrate, a layer of the liquid or viscous material located there being subjected to organic polymerisation by the action of radiation and thereby solidified, whereupon further layers of the liquid or viscous material, which are each located on the layer of the most recently solidified material, are successively solidified with the aid of this radiation source.

Abstract: The invention relates to a method for producing a shaped body by means of a radiation-induced printing process according to the technique of the one-photon polymerization process, characterized in that the shaped body is produced by solidifying a liquid or viscous material which contains a polysiloxane component produced by hydrolytic condensation of one or more monomeric silanes having exclusively two or three hydrolyzable groups and at least one organically polymerizable radical being bonded to the silicon atom via carbon, and contains an initiator and/or catalyst for the radiation-induced polymerization of the organically polymerizable residue, and the solidification is effected by directing light onto a region of a surface of a substrate, whereby a layer of the material located there is polymerized and thereby solidified, whereupon further layers are successively solidified.

Abstract: The present invention concerns a silane of formula (1) R1aSiR4-a??(1) where the group R1 or each of the groups R1 independently is bound to the silicon via an oxygen atom, comprises a straight or branched hydrocarbonaceous chain having one or more elements, wherein (a) each of the elements has not more than 8 consecutive carbon atoms, each of plural elements of the hydrocarbonaceous chain being separated from the next element by a cleavable group and/or (b) the elements have one or more cleavable groups and any hydrocarbonaceous chains remaining upon cleavage of said group(s) are water soluble, wherein said cleavable groups are selected from ester, anhydride, amide, carbonate, carbamate, ketal, acetal, disulfide, imine, hydrazone and oxime groups, has at least one thiol or a primary or secondary amino group, the group R or each of the groups R is independently a hydrolytically condensable group, and a is 1, 2, 3 or 4.

Abstract: A three-dimensional scaffold structure and a process for its manufacture. The scaffold structure has a polymer system obtainable by photostructuring a starting material containing precursor molecules or inorganic polymers thereof having an organically polymerizable radical with at least one C?C double bond, an inorganically polymerizable silane-based radical and a functional group or derivative thereof.

Abstract: The invention relates to a silane or silane mixture obtainable by reacting a hydrolysable silane of the formula (A): SiR4 in which R is a hydrolytically condensable group or hydroxyl with a compound R*(OH)x where x is 1, 2, 3 or greater 3, where R* has a straight-chain or branched hydrocarbon skeleton which, according to the number x, is monovalent, divalent, trivalent or multivalent, and has a hydrocarbonaceous chain interrupted by at least two —C(O)O— groups, wherein there are a maximum of 8 successive carbon atoms in the individual hydrocarbon units formed by interruptions within this chain and the, or in the case of branched structures at least one, end of the hydrocarbonaceous chain at the opposite end to the sole hydroxyl group or one of the hydroxyl groups bears an organically polymerizable group, wherein the alcohol is otherwise unsubstituted or has further substituents.

Abstract: The present invention relates to compounds and silicic acid (hetero)polycondensates comprising structures of formulas (1) and/or (2), R2 is a hydroxy group or a free carboxylic acid residue or a carboxylic acid ester derived therefrom or a salt derived therefrom, R3 denotes a residue having a hydrocarbon-containing branched or unbranched backbone which is bonded to silicon by carbon, and can be arbitrarily interrupted by heteroatoms or coupling groups or by other heteroatom-containing groups, where the zigzag line purely schematically denotes the hydrocarbon-containing backbone, the three not more closely characterized bonds of the Si-atom represent additional residues bonded to the silicon atom, selected from residues that can be hydrolyzed from silicon, hydroxy groups and residues bonded to silicon by carbon which can have the same meaning as R3 or can have a different meaning deviating therefrom, or represent oxygen bridges to further silicon atoms and/or other metal atoms in the case the structure (

Abstract: The invention relates to a dental prosthesis comprising a first inner sub-region which has a first organically polymerized material and a second outer sub-region, which has a second organically polymerized material that is an organically modified and organically polymerized silicic acid (hetero)polycondensate. The first inner sub-region has a flexural strength of over 80 MPa according to DIN EN ISO 4049: 2009 and a lower elastic modulus than the second outer sub-region, while the second, outer sub-region has a flexural strength of at least 100 MPa according to DIN EN ISO 4049: 2009. The first organically polymerized material is preferably also an organically modified and organically polymerized material.

Abstract: The invention relates to a silane or silane mixture obtainable by reacting a hydrolysable silane of the formula (A): SiR4 in which R is a hydrolytically condensable group or hydroxyl with a compound R*(OH)x where x is 1, 2, 3 or greater 3, where R* has a straight-chain or branched hydrocarbon skeleton which, according to the number x, is monovalent, divalent, trivalent or multivalent, and has a hydrocarbonaceous chain interrupted by at least two —C(O)O— groups, wherein there are a maximum of 8 successive carbon atoms in the individual hydrocarbon units formed by interruptions within this chain and the, or in the case of branched structures at least one, end of the hydrocarbonaceous chain at the opposite end to the sole hydroxyl group or one of the hydroxyl groups bears an organically polymerizable group, wherein the alcohol is otherwise unsubstituted or has further substituents.

Abstract: A compound has at least three functionalities, including a first functionality (a) that is a sulfonate group or a sulfate group of the formula —(O)d—SO3M with d=0 or 1 and with M=hydrogen or a monovalent metal cation or a corresponding portion of a multivalent metal cation; a second functionality (b) that is a (meth)acryl residue; and a third functionality (c) that is a carboxylic acid function and/or a thioether group. When the compound is free of silicon, the sulfonate or sulfate group and the (meth)acryl residue are separated from each other by a hydrocarbon-containing residue having a carbon chain. The carbon chain is interrupted by S or NH, or the carbon chain contains a linking group, selected from C(O)NH, NHC(O), NR8C(O), NHC(O)O, NR8C(O)O, NHC(O)NH, C(O)NHC(O) and —C(O)S—, wherein R8 is alkyl or alkenyl or a (meth)acryl group.

Abstract: [Problem] To provide a polymerizable composition having an excellent transparency in near-infrared wavelength and excellent heat resistance, and a method for producing the same.

Abstract: A compound has at least three functionalities, including a first functionality (a) that is a sulfonate group or a sulfate group of the formula —(O)d—SO3M with d=0 or 1 and with M=hydrogen or a monovalent metal cation or a corresponding portion of a multivalent metal cation; a second functionality (b) that is a (meth)acryl residue; and a third functionality (c) that is a carboxylic acid function and/or a thioether group. When the compound is free of silicon, the sulfonate or sulfate group and the (meth)acryl residue are separated from each other by a hydrocarbon-containing residue having a carbon chain. The carbon chain is interrupted by S or NH, or the carbon chain contains a linking group, selected from C(O)NH, NHC(O), NR8C(O), NHC(O)O, NR8C(O)O, NHC(O)NH, C(O)NHC(O) and —C(O)S—, wherein R8 is alkyl or alkenyl or a (meth)acryl group.

Abstract: [Problem] To provide a polymerizable composition having an excellent transparency in near-infrared wavelength and excellent heat resistance, and a method for producing the same.

Abstract: The present invention relates to compounds and silicic acid (hetero)polycondensates comprising structures of formulas (1) and/or (2), R2 is a hydroxy group or a free carboxylic acid residue or a carboxylic acid ester derived therefrom or a salt derived therefrom, R3 denotes a residue having a hydrocarbon-containing branched or unbranched backbone which is bonded to silicon by carbon, and can be arbitrarily interrupted by heteroatoms or coupling groups or by other heteroatom-containing groups, where the zigzag line purely schematically denotes the hydrocarbon-containing backbone, the three not more closely characterized bonds of the Si-atom represent additional residues bonded to the silicon atom, selected from residues that can be hydrolyzed from silicon, hydroxy groups and residues bonded to silicon by carbon which can have the same meaning as R3 or can have a different meaning deviating therefrom, or represent oxygen bridges to further silicon atoms and/or other metal atoms in the case the structure (

Abstract: The invention relates to a compound, comprising at least three functionalities, that is (a) a sulfonate or sulfate group of the formula —(O)d—SO3M with d=0 or 1 and M=hydrogen or a monovalent metal cation or the corresponding fraction of a polyvalent metal cation, (b) a (meth)acryl group, and (c) either (c1) at least one further (meth)acryl group or an inorganically condensable group, and/or (c2) a further carboxylic acid function, and/or (c3) a function which increases the refractive index of a material produced from the compounds, that is a thioether group, with the proviso that a sulfonate or sulfate group and a (meth)acrylate group are separated from one another in a silicon-free compound via a hydrocarbon-containing group, the carbon chain of which is either interrupted by O, S or NH or contains a linking group.

Abstract: The present invention relates to silicic acid (hetero)polycondensates comprising structural units of a following formula (1) wherein radicals, indices, and bonding symbols have the following meaning: R1 refers to a group that is accessible to a thiol-ene polyaddition when a thiol is added and can also be polymerized by a ROMP (ring opening metathesis polymerization), R2 is selected from (a) organically polymerizable groups that are available to a thiol-ene polyaddition when a thiol is added, but not to a ROMP, (b) —COOR8 with R8 equal to R4 or M1/xx+, (c) —OH or COOH, and (d) —(O)bP(O)(R5)2, wherein b is equal to 0 or 1, —SO3M1/xx+, NR72 or NR7+3.

Abstract: The invention relates to a layer or three-dimensional molded articles comprised of or composing an organically modified polysiloxane or a derivative thereof, the silicon atoms of which are completely or partially replaced with other metal atoms, wherein the organic share of the polysiloxane or derivative thereof has an organic cross-link with thiol-ene addition products bonded to silicon and/or to other metal atoms via carbon and/or oxygen, which are obtainable via a two-photon or multi-photon polymerization reaction, wherein the article has two areas with differing primary and/or secondary structures, available through the following process: a) Providing a substrate or a mold, b) Providing a material selected from sols, gels, and organically modified materials containing polysiloxanes, all of which contain metal and/or metalloid, wherein said provided material has free SH groups and isolated C?C double bonds, c) Applying or attaching the provided material on or to the substrate or pouring it into the mold,

Abstract: The invention relates to a layer or a three-dimensional molded article comprised of or composing an organically modified polysiloxane or a derivative thereof, the silicon atoms of which are completely or partially replaced with other metal atoms, wherein the organic share of the polysiloxane or derivative thereof has an organic cross-link with (i) C?C addition polymers and/or thiol-ene addition products bonded to silicon and/or to other metal atoms via carbon and/or oxygen, which are obtainable via a two-photon or multi-photon polymerization reaction, as well as with (ii) organic molecules integrated into the organic cross-link copolymerized via C?C double bonds or through a thiol-ene addition to double bonds or to SH groups of an organic radical, wherein the article has two areas with differing primary and/or secondary structures, available through the following process: a) Providing a substrate or a mold, b) Providing a material selected from sols, gels, and organically modified materials containing polysi