Abstract: A silicone composition is described that includes components having SiH/SiOH groupings and that can be polymerized/cross-linked by a dehydrocondensation reaction in the presence of a non-metal catalyst such as non-silylated, pentasubstituted guanidine, requiring a low activation temperature.

Abstract: The invention concerns a preparation process of a hybrid organic-inorganic material including the following successive steps: a) preparation of a neutral organosilicon sol in at least one organic solvent, b) incorporation of a doping agent into the neutral organosiliconsol, and production of a doped sol, c) incorporation into the doped sol, of an accelerating agent in order to activate the subsequent gelation of the sol, d) condensation of the sol in order to obtain a crosslinked gel, e) drying of the gel and production of a stable doped gel. and the material obtainable by such a method.

Abstract: A method for fabricating a ceramic material includes impregnating a porous structure with a mixture that includes a preceramic polymer and a filler. The filler includes at least one free metal. The preceramic polymer material is then rigidized to form a green body. The green body is then thermally treated to convert the rigidized preceramic polymer material into a ceramic matrix located within pores of the porous structure. The same thermal treatment or a second, further thermal treatment is used to cause the at least one free metal to move to internal porosity defined by the ceramic matrix or pores of the porous structure.

Abstract: The invention relates to a process for manufacturing porous materials, which comprises the following steps: preparation of a solution of at least one structuring agent, having at least two structuring parts linked by at least one type of reversible non-covalent interaction; formation of the structured or porous material; separation of the at least two parts of the structuring agent at low temperature; and recovery of at least 50% by weight of the two non-degraded structuring parts and the porous material.

Abstract: Methods for making foamed adhesive compositions suitable for use in adhesive dressings for topical application to the body, the method including providing a molten adhesive composition, combining an inert gas with the molten adhesive composition in a first mixer, mixing the molten adhesive composition comprising the inert gas in the first mixer under conditions effective to form a first foamed adhesive composition; and mixing the first foamed adhesive composition in a second mixer that includes a rotating mixing blade under conditions effective to provide a second foamed adhesive composition having a substantially homogenous distribution of closed cells containing the inert gas.

Abstract: Polyisocyanurate foams of closed cell structure and low density are obtained by reaction of an amino-functional hyperbranched organopolysiloxane polyol, polyisocyanate, trimerization catalyst, and blowing agent.

Abstract: A nanoporous material exhibiting a lamellar structure is disclosed. The material comprises three or more substantially parallel sheets of an organosilicate material, separated by highly porous spacer regions. The distance between the centers of the sheets lies between 1 nm and 50 nm. The highly porous spacer regions may be substantially free of condensed material. For the manufacture of such materials, a process is disclosed in which matrix non-amphiphilic polymeric material and templating polymeric material are dispersed in a solvent, where the templating polymeric material includes a polymeric amphiphilic material. The solvent with the polymeric materials is distributed onto a substrate. Organization is induced in the templating polymeric material. The solvent is removed, leaving the polymeric materials in place. The matrix polymeric material is cured, forming a lamellar structure.

Abstract: The present invention relates to a porous polymer and a synthetic method thereof. The porous polymer has the following general formula: wherein, the positions marked with the numeral 1-10 are C, CH, N, or CH with its H being substituted by methyl, ethyl, amido, carboxyl, methoxyl, hydroxyl, or ester group; the positions marked with letter a or b are C, N+, or B?.

Abstract: The disclosure provides granular forms of porous biomaterials and methods for forming and applying these biomaterials, including uses to promote vascularization and tissue ingrowth.

Abstract: The present invention is a process for making an inorganic/organic hybrid totally porous spherical silica particles by self assembly of surfactants that serve as organic templates via pseudomorphic transformation.

Abstract: Silicone-containing polyurethane foams of low density, good pore structure, and high surface quality are prepared by reacting a branched, preferably hyperbranched silicone polyol with a polyisocyanate and a silicone resin in the presence of a reactive or non-reactive blowing agent.

Abstract: Silicone foams having good foam structure and rapid cure are produced from foamable mixtures containing a physical blowing agent and an organically modified organopolysiloxane containing at least one urea or urethane group and an alkoxy(alkyl)siloxy unit.

Abstract: Methods of forming an insulating material comprising combining a polysilazane, a cross-linking compound, and a gas-generating compound to form a reaction mixture, and curing the reaction mixture to form a modified polysilazane. The gas-generating compound may be water, an alcohol, an amine, or combinations thereof The cross-linking compound may be an isocyanate, an epoxy resin, or combinations thereof The insulating material may include a matrix comprising one of a reaction product of a polysilazane and an isocyanate and a reaction product of a polysilazane and an epoxy resin. The matrix also comprises a plurality of interconnected pores produced from one of reaction of the polysilazane and the isocyanate and from reaction of the polysilazane and the epoxy resin. A precursor formulation that comprises a polysilazane, a cross-linking compound, and a gas-generating compound is also disclosed.

Abstract: Compositions suitable for producing polyurethane foams which include at least an isocyanate component, a polyol component, a catalyst catalyzing formation of a urethane or isocyanurate bond, and at least one compound containing at least one structural element of formula (I)

Abstract: Disclosed herein is a foam that includes a polysiloxane block copolymer; the polysiloxane block copolymer including a first block that comprises a polysiloxane block and a second block that includes an organic polymer; the second block not containing a polysiloxane; the polysiloxane block being about 5 to about 45 repeat units; the foam having average pore sizes of less than or equal to about 100 nanometers.

Abstract: A process for the preparation of thermoplastic auxetic foams comprising the steps of: a) taking conventional thermoplastic foam; b) subjecting said foam to at least one process cycle wherein the foam is biaxially compressed and heated; c) optionally subjecting the foam to at least one process cycle wherein the biaxial compression is removed and the foam mechanically agitated prior to reapplying biaxial compression and heating; d) cooling said foam to a temperature below the softening temperature of said foam; and e) removing said compression and heat.

Abstract: The invention relates to polyurethane prepolymers, to a method for the production thereof, and the use thereof as binding agents for adhesives, coatings, or foams.

Abstract: The invention relates to polyurethane prepolymers, to a method for the production thereof, and to the use thereof as binding agents for adhesives, coatings, or foams.

Abstract: A method of forming a porous composite material in which substantially all of the pores within the composite material are small having a diameter of about 5 nm or less and with a narrow PSD is provided. The porous composite material includes a first solid phase having a first characteristic dimension and a second phase comprised of pores having a second characteristic dimension, wherein the characteristic dimensions of at least one of said phases is controlled to a value of about 5 nm or less.

Abstract: A crosslinkable foamable composition with low content of monomeric isocyanates comprising a) 10 to 90 wt % of a prepolymer of polyester diols reacted with an excess of diisocyanates and subsequent removal of the excess monomeric diisocyanate, b) 90 to 10 wt % of a component based on polyether polyols which possesses at least one Si(OR)3 group or at least one NCO group, c) 0.1 to 30 wt % additives, d) and at least one blowing agent, wherein the polyester diols and the polyether diols have a molecular mass (MN) below 5000 g/mol and the mixture of a and b comprises a content of monomeric diisocyanates below 2 wt %.

Abstract: In the elastomer porous material of the invention, when cells in a first observation region of a first cross section are observed at a certain magnification, cells having an aspect ratio a/b, wherein a represents the maximum diameter of each cell and b represents the length of the minor axis of that cell as measured in a direction orthogonal thereto, of 1.3 or less account for 70% or more of all cells in the first observation region, and, when cells in a second observation region of a second cross section orthogonal to the first cross section are observed at a certain magnification, cells having an aspect ratio a/b, wherein a represents the maximum diameter of each cell and b represents the length of the minor axis of that cell as measured in a direction orthogonal thereto, of 1.3 or less account for 70% or more of all cells in the second observation region.

Abstract: In the elastomer porous material of the invention, when cells in a first observation region of a first cross section are observed at a certain magnification, cells having a shape factor SF1, which indicates the roundness of a circle and is represented by the following formula: SF ? ? 1 = ? ? ? a 2 4 ? A × 100 (wherein a represents the length of major axis of each cell, and A represents the area thereof), of 150 or less account for 80% or more of all cells in the first observation region, and, when cells in a second observation region of a second cross section orthogonal to the first cross section are observed at a certain magnification, cells having a shape factor SF1, which indicates the roundness of a circle and is represented by the same formula (wherein a represents the length of major axis of each cell, and A represents the area thereof), of 150 or less account for 80% or more of all cells in the second observation region.

Abstract: In the elastomer porous material of the invention, when cells in a first observation region of a first cross section are observed at a certain magnification, cells having a shape factor SF2, which indicates the remoteness from complete roundness and is represented by the following formula: SF ? ? 2 = P 2 4 ? ? ? ? A × 100 (wherein A represents the area of each cell, and P represents the perimeter length thereof), of 130 or less account for 80% or more of all cells in the first observation region, and, when cells in a second observation region of a second cross section orthogonal to the first cross section are observed at a certain magnification, cells having a shape factor SF2, which indicates the remoteness from complete roundness and is represented by the same formula (wherein A represents the area of each cell, and P represents the perimeter length thereof), of 130 or less account for 80% or more of all cells in the second observation region.

Abstract: A silicone composition is described that includes components having SiH/SiOH group and that can be polymerized/cross-linked by a dehydrocondensation reaction in the presence of a catalyst such as an iron-based complex or salt, requiring a low activation temperature.

Abstract: A silicone composition is described that includes components having SiH/SiOH groupings and that can be polymerized/cross-linked by a dehydrocondensation reaction in the presence of a non-metal catalyst such as non-silylated, pentasubstituted guanidine, requiring a low activation temperature.

Abstract: Ceramic oxide aerogels incorporating periodically dispersed flexible linkages are provided. The flexible linkages impart greater flexibility than the native aerogels without those linkages, and have been shown to reduce or eliminate the need for supercritical CO2-mediated drying of the corresponding wet gels. The gels may also be polymer cross-linked via organic polymer chains that are attached to and extend from surface-bound functional groups provided or present over the internal surfaces of a mesoporous ceramic oxide particle network via appropriate chemical reactions.

Abstract: A silicone composition is described that includes components having SiH/SiOH groupings and that can be polymerized/cross-linked by a dehydrogenative condensation reaction in the presence of a non-metal tri- or tetrasubstituted non-silylated guanidine catalyst and requiring a low activation temperature.

Abstract: A silicone composition is described that includes components having SiH/SiOH groupings and that can be polymerized/cross-linked by a dehydrogenative condensation reaction in the presence of a zinc catalyst and requiring a low activation temperature.

Abstract: This invention relates to a composition comprising a mixture of: (A) an elastomeric material having a modulus at 100% elongation of 0.1-10 MPa; and (B) a non-reactive silicone fluid having a viscosity of 1,000-3,000,000 mPas at 25° C. The elastomer is preferably a silicone elastomer. The invention also provides an impact-resistant material comprising the composition and a shaped article, e.g. a moulded article, made therefrom. The composition provides impact resistance.

Abstract: Provided are methods for making textured implantable materials made from two part RTV silicone foams and having a desired color or tone without the need for dyes or colorants.

Abstract: Novel particles and materials for chromatographic separations, processes for preparation and separations devices containing the chromatographic particles and materials are provided by the instant invention. In particular, the invention provides a porous inorganic/organic hybrid particle, wherein the inorganic portion of the hybrid particle is present in an amount ranging from about 0 molar % to not more than about 49 molar %, wherein the pores of the particle are substantially disordered. The invention also provides a porous inorganic/organic hybrid particle, wherein the inorganic portion of the hybrid particle is present in an amount ranging from about 25 molar % to not more than about 50 molar %, wherein the pores of the particle are substantially disordered and wherein the particle has a chromatographically enhancing pore geometry (CEPG). Methods for producing the hybrid particles, separations devices comprising the hybrid particles and kits are also provided.

Abstract: Disclosed and claimed herein are hybrid silica aerogels containing non-polymeric, functional organic materials covalently bonded at one or both ends to the silica network of the aerogels through a C—Si bond between a carbon atom of the organic material and a silicon atom of the aerogel network. Methods of their preparation are also disclosed.

Abstract: The present invention relates to binders, to processes for the preparation thereof, and to the use thereof in formulations, surface coatings, inks and plastics.

Abstract: Crosslinkable compositions containing a crosslinkable organosilicon compound; a silica filler; a silicate or halogen analog thereof, a non-silicate resin-forming monomer; and a solid blowing agent containing intercalated liquid or liquid of crystallization, produce uniform foams of good pore structure, with firm adhesion to substrates, with water repellency and water vapor permeability, and with high elongation and low compression set, and are suitable for use in applications where foamed chloroprene rubber has been used, and in other applications as well.

Abstract: Closed cell silicone foams are formed by subjecting a silicone base to an inert gas at an elevated pressure, preferably after a pre-curing step, reducing the pressure to allow the base to expand to produce closed cell silicone foam and curing this expanded foam at an elevated temperature.

Abstract: Polymer composite roofing materials are provided which contain resin, and about 20-75 wt. % fillers and additives, in which the fillers contain at least one bulk filler for reducing the amount of resin needed to make the roofing material, and at least one aesthetically functional filler for providing the roofing material with an aesthetic appearance. The bulk filler and the aesthetically functional filler of this embodiment are non-toxic, resistant to microbial attack, and have a Mohs hardness of less than about 5.

Abstract: The present invention relates to a pump and pumping system for a microfluidic lab-on-a-chip, and a fabricating method thereof. An exemplary embodiment of the present invention provides a method of fabricating a pump for microfluidic lab-on-a-chips, the method including: infiltrating PDMS (polydimethylsiloxane) solution into a porous lump of water-soluble material; performing soft baking of the porous lump of water-soluble material containing the PDMS solution; and dissolving the porous lump of water-soluble material via water to obtain a porous PDMS structure.

Abstract: This invention relates to curable compositions containing hydroxyl compounds that carry silyl groups as well as to the use of said compositions.

Abstract: Implantable biocompatible polymeric medical devices include a substrate with an acid or base-modified surface which is subsequently modified to include click reactive members.

Abstract: A process and apparatus for producing a nanovoided article, a nanovoided coating, and a low refractive index coating is described. The process includes providing a first solution of a polymerizable material in a solvent; at least partially polymerizing the polymerizable material to form a composition that includes an insoluble polymer matrix and a second solution, wherein the insoluble polymer matrix includes a plurality of nanovoids that are filled with the second solution; and removing a major portion of the solvent from the second solution. An apparatus for the process is also described, and includes a webline, a coating section, a partial polymerization section, and a solvent removal section.

Abstract: Modified alkoxylation products of the formula (I), their use and processes for preparing them

Abstract: The invention relates to novel masticatory masses for oral hygiene, made from foamed synthetic polymers, a method for production and use thereof.

Abstract: Described herein are foam-like materials having substantially the same physical structure of polyurethane foams but with properties that can be tailored for a particular application. Methods of forming these foam-like materials are also described.

Abstract: Method and devices for rapidly fabricating monolithic aerogels, including aerogels containing chemical sensing agents, are disclosed. The method involves providing a gel precursor solution or a pre-formed gel in a sealed vessel with the gel or gel precursor at least partially filling the internal volume of the vessel and the sealed vessel being positioned between opposed plates of a hot press; heating and applying a restraining force to the sealed vessel via the hot press plates (where the restraining force is sufficient to minimize substantial venting of the vessel); and then controllably releasing the applied restraining force under conditions effective to form the aerogel. A preferred device for practicing the method is in the form of a hot press having upper and lower press plates, and a mold positioned between the upper and lower plates. Doped aerogel monoliths and their use as chemical sensors are also described.

Abstract: The present invention relates to the use as an antisoiling coating of a porous coating comprising a polysiloxane matrix and a porous volume such that the potential filling ratio of the total volume of said coating by oleic acid is at least 25% by volume, having a porosity rate ranging from 25 to 70% by volume and having no photocatalytic properties. The antisoiling porous coating is self-cleaning, easy to clean and can be regenerated by simple washing. It is mainly intended for use in ophthalmic optics, and proves to be very effective against sebum. In the preferred embodiment of the invention, this coating has a mesoporous structure.

Abstract: Process for preparing polymer-reinforced silica aerogels which comprises a one-pot reaction of at least one alkoxy silane in the presence of effective amounts of a polymer precursor to obtain a silica reaction product, the reaction product is gelled and subsequently subjected to conditions that promotes polymerization of the precursor and then supercritically dried to obtain the polymer-reinforced monolithic silica aerogels.

Abstract: A method and system to predict a design of an article of manufacture, which can include the steps of introducing a biological organism into a test environment to activate at least one molecular component of the biological organism representing at least one set of genetic characters of the biological organism; monitoring for change in at least one expression phenomenon pattern in response to the test environment; translating the monitored change in the at least one expression phenomenon pattern into a molecular data profile; interrogating the molecular data profile against a stored database to generate an information pattern of a phenotype correlated to the molecular data profile; and translating the information pattern of the phenotype into a correlated design component of the article of manufacture.

Abstract: A chiral inorganic mesoporous material characterized by having a chiral twisted structure and being mesoporous; a process for producing the material; and a method of using the material. The process for inorganic mesoporous material production is a method in which one or more polymerizable inorganic monomers selected from the group consisting of polymerizable inorganic monomers and polymerizable inorganic monomers having a functional group capable of having a charge are polymerized in the presence of a solvent using as a template a self-assembly of a chiral surfactant such as an N-(higher alkanoyl)amino acid salt. Examples of the use of the inorganic mesoporous material include the separation of racemates and reaction fields for asymmetric syntheses.

Abstract: The present specification discloses porous materials, methods of forming such porous materials, biocompatible implantable devices comprising such porous materials, and methods of making such biocompatible implantable devices.

Abstract: An expandable polyurethane composition contains (A) a polyisocyanate, (B) an active hydrogen containing compound containing (B1) a polyol and (B2) water, and (C) a cross-linking agent composition. The cross-linking agent composition (C) contains a cross-linking agent (C1) and a carboxylic acid (C2). The cross-linking agent (C1) can be selected from an alkanolamine (a) represented by an expression: HxR1yN((R2O)nH)3-x-y, and an aminosilane (b) represented by an expression: (R3O)qR43-qSi—R5—(NHCH2CH2)pNR6R7. A content of the cross-linking agent composition (C) is 0.1 parts by mass to 20 parts by mass relative to 100 parts by mass of the active hydrogen containing compound (B), and the containing number of moles of the cross-linking agent (C1) is larger than that of the carboxylic acid (C2).