Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Other

The Procter Gamble Company

Nissan Chemical Industries Limited

Julius-maximilians-universitat Wurzburg

Nissan Chemical Corporation

Gellermann, Carsten

Wolter, Herbert

Nique, Somchith

Bausen, Denise

Herbert Wolter

Werner Storch

Somchith Nique

Klaus Rose

Christian Egger

Carsten Gellermann

Thomas Ballweg

Johannes Schwaiger

Mona Seyfried

Helmut Schmidt

Michael Popall

Kentaro Ohmori

Ruth Houbertz-Krauss

Karl Joachim Deichmann

Tetsuo Sato

Sebastian Hasselmann

Doris Heinrich

Sebastien Cochet

Marco Schott

Kerstin Obel

Siegfried Schmitzer

Carina Kolb

Somclith Nique

Jeannette Hoffmann

Denise Bausen

Helma Baeuerlein

Caroline Kopittke

Thomas Dipl-Phys Ballweg

Werner Dipl-Phys Storch

Ruth Houbertz

Florian HÄUSLER

Jeanette Hoffmann

Nique Somchith

The present invention concerns a silane of formula (1)RSIR  (1) The invention further relates to organically modified, polymerized silicic acid polycondensates which have been obtained by reaction and optionally subsequent hydrolytic condensation of such a silane or of silicic acid polycondensates therefrom with a bridging compound, which undergo an addition reaction with the at least one thiol or primary or secondary amino group of the radical Rof the silane of the formula (1).

Degradable silane having thio and amino groups, silicic acid polycondensates and hybrid polymers produced therefrom, use thereof and method for producing the silanes

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.

Three-dimensional scaffold structures with selectively functionalized polymer systems, their use and process for their manufacture

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 Furthermore, the invention relates to a shaped body based on an organically polymerized silica (hetero)polycondensate, which was produced by organic polymerization of the aforementioned polysiloxane component, with superior mechanical properties.

Production of molded bodies from an inorganic-organic hybrid polymer with high resolution using 3D printing, molded bodies with a high flexural strength and elastic modulus, and the use thereof for dental purposes

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 &#x2014;C(O)O&#x2014; 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. The invention further relates to an organically modified silica polycondensate formed as a result of hydrolytic condensation of the silane or silane mixture and optionally a subsequent organic polymerization of the organically polymerizable groups, with optional addition of an organic, at least difunctional compound to the silica polycondensate prior to the organic polymerization.

Biodegradable hybrid polymers usable in medical technology or in biology, starting silanes therefor, and preparation process therefor and uses thereof

The present invention relates to compounds and silicic acid (hetero)polycondensates comprising structures of formulas (1) and/or (2), 

Silane and silicic acid (hetero)polycondensate having aromatic compounds linked via coupling groups which are suitable as or for matrix systems having high translucency and good mechanical properties

A compound has at least three functionalities, including a first functionality (a) that is a sulfonate group or a sulfate group of the formula &#x2014;(O)&#x2014;SOM 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), NRC(O), NHC(O)O, NRC(O)O, NHC(O)NH, C(O)NHC(O) and &#x2014;C(O)S&#x2014;, wherein Ris alkyl or alkenyl or a (meth)acryl group.

Compounds containing (meth)acrylate groups and sulfonate or sulfate groups, polymers and condensates therefrom and use of the polymers and condensates

[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. [Means of Solving the Problem] A polymerizable composition includes: a reactive silicone compound obtained by polycondensing a diaryl silicic acid compound of Formula [1] below with a silane compound, selected under compounds of Formula [2] and Formula [2b] below in the presence of an acid or a base; and (b) a compound having at least one polymerizable group selected from the group consisting of alkenyl group and (meth)acryl group, wherein Arand Arare independently a phenyl group optionally substituted with a C-Calkyl group, and X is a group which can undergo a hydrolytic condensation reaction, and wherein Aris naphthyl or anthracyl substituted with at least one group having a polymerizable double bond, or wherein Aris phenyl substituted with at least one group having a polymerizable double bond other than vinyl, or is phenyl substituted with at least two groups having a polymerizable double bond. 

Polymerizable compositions, cured products obtained therewith, and use of these materials

The invention relates to a compound, comprising at least three functionalities, that is (a) a sulfonate or sulfate group of the formula &#x2014;(O)&#x2014;SOM 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.

Compounds containing (meth)acrylate groups and sulfonate or sulfate groups, polymers and condensates made therefrom and use of the polymers and condensates

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:Rrefers 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),Ris 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) &#x2014;COORwith Requal to Ror M, (c) &#x2014;OH or COOH, and (d) &#x2014;(O)P(O)(R), wherein b is equal to 0 or 1, &#x2014;SOM, NRor NR.

Silicic acid polycondensates having cyclic olefin-containing structures, method for the production thereof, and use thereof

The present invention relates to a process for a chain extension of radicals bonded to silicon via carbon in silanes or siloxanes while maintaining or increasing the number of functional groups on the respective Si&#x2014;C-bonded radicals, wherein a silane or siloxane with a radical bonded to a silicon atom by a carbon atom, which bears at least two functional groups, wherein a first group of the functional groups is an unsaturated, organically polymerizable group and a second group of the functional groups is selected from among

Hydrolysable and polymerizable silanes with adjustable spatial distribution of the functional groups, and use thereof

A polycondensate wherein R is alkylene, arylene, or alkylene-aryiene with 1-10 C, optionally containing O, S, carboxyl or amino; Ris Z'-substituted alkylene, arylene, or alkylene-aryiene with 1-10 C, optionally containing O, S, carboxyl or amino; R&#x2032; is alkyl. alkenyl, aryl, alkylaryl, or arylalkyl with 1-20 C; Ris a bond to another Si or metal atom or is H or alkyl with 1-10 C; B and B&#x2032; is an organically polymerizable group with at least one C&#x2550;C bond and at least 2 C or &#x2014;RSiXor &#x2014;RRSiXis alkylene with 1-10 C; Z&#x2032; is &#x2014;NH&#x2014;C(O)O&#x2014;, &#x2014;NH&#x2014;C(O)&#x2014;, bonded via NH to B&#x2032;, or &#x2014;CO(O)&#x2014;, wherein when C is bonded to B&#x2032;, B&#x2032;&#x2014;Z&#x2032;&#x2014; is not acrylate if B contains acrytate, and B&#x2032;&#x2014;Z&#x2032;&#x2014; is not methacrylate if B contains methacrylate, wherein a is 1 or 2, b is 0 or 1. X may undergo hydrolytic condensation to Si&#x2014;O&#x2014;Si.

Silane and silicic acid polycondensates with radicals containing branched-chain urethane, acid amide and/or carboxylic acid ester groups

The present invention relates to a process for cross-linking a silane with the structure (IIa)   

Process for bridging organically polymerizable silanes or silane resin systems containing hydroxy- or carboxylic acid groups as well as products obtained with said process

A dental composite containing a nanoparticulate filler has a resin matrix with structural element (Ib) R is an open-chain and/or cyclic alkylene, arylene, or alkylene arylene with 1-10 C, optionally modified by oxygen, sulfur, carboxyl or amino, Ris an open-chain and/or cyclic alkylene, arylene, or alkylene arylene with 1-10 C, optionally modified by oxygen, sulfur, carboxyl or amino; R' is an open-chain and/or cyclic alkyl, alkenyl, aryl, alkyl aryl, or aryl alkyl with 1-20 C; B and B&#x2032; are identical or different and are a straight-chain or branched organically polymerizable group with (meth)acrylate residue; Rare identical or different and a bond to another Si or hydrogen, alkyl with 1-10 C, or a bond to another metal atom; a is 1 or 2 and b is 0 or 1.

Tough, long-lasting dental composites

The invention relates to silane of formula (Ia), wherein the radicals and indices have the following meaning: R is an alkylene, arylene or alkylenearylene group that can be interrupted by one or more oxygen or sulfur atoms or carboxyl or amino groups or can carry said atoms/groups on their ends opposite the silicon atom; Ris a Z'-substituted alkylene, arylene or alkylenearylene group, which can be interrupted by one or more oxygen or sulfur atoms or carboxyl or amino groups or can carry said atoms/groups on one of their ends; R&#x2032; is an alkyl, alkenyl, aryl, alkylaryl or arylalkyl group; B and B&#x2032; can be identical or different, both radicals can have the meaning of a straight-chained or branched organic group with at least one C&#x2550;C double bond and at least 2 carbon atoms; B&#x2032; can mean instead thereof but also &#x2014;RSi(OR)or &#x2014;RR&#x2032;Si(OR), wherein Ris an alkylene group and R&#x2032; has the meaning defined above; X represents a group that can enter into a hydrolytic while forming Si&#x2014;O&#x2014;Si bridges; Z&#x2032; means &#x2014;NH&#x2014;C(O)O&#x2014;, &#x2014;NH&#x2014;C(O)&#x2014; or &#x2014;CO(O)&#x2014;, wherein the first two radicals are bonded to radical B&#x2032; by means of the NH group, whereas the carboxylate group can point in both directions except for a minor exception; a represents 1 or 2, and b is 0 or 1. The invention also relates to silicic acid poly (partial) condensates which can be produced by hydrolysis and condensation of said silane, and to the polymer materials with or without filling materials produced therefrom. The invention further relates to a method for the production of the inventive silane. 

The invention relates to inorganic hollow fibers, to a spinning mass and to a method for producing the same as well as to the use thereof for material transports, for the exchange of gases and in separation procedures. The hollow fibers according to the invention are obtainable by processing a spinning mass to a hollow fiber according to general methods, by curing said fiber thermally, via radiation induction or via chemical induction, and by removing the organic components via pyrolysis. The spinning mass is obtained by hydrolytic polycondensation of hydrolyzable compounds of silicon, aluminum, titanium and zirconium and optionally of co-condensable compounds of the elements Li, Na, Mg, Ca, Sr, Ba, Zn, Sn or Pb. The hydrolytic polycondensation is performed by adding water or moisture. If desired, monomers or oligomers which may undergo co-polymerization or (poly)addition, curing catalysts, pore generating additives or compounds of the elements Li, Na, Mg, Ca, Sr, Ba, Zn, Sn and Pb which are soluble in the reaction medium are added to the spinning mass.

Growing community of inventors

Tauberbischofsheim, Germany

Herbert Wolter