Abstract: The present invention relates to a process comprising the steps of reacting a reactive mixture comprising at least one silicone-containing component, at least one hydrophilic component, and at least one diluent to form an ophthalmic device having an advancing contact angle of less than about 80°; and contacting the ophthalmic device with an aqueous extraction solution at an elevated extraction temperature, wherein said at least one diluent has a boiling point at least about 10° higher than said extraction temperature.

Abstract: A silicone rubber emulsion composition comprising (A) 100 parts diorganopolysiloxane having at least two silicon-bonded alkenyl groups, (E) 0 to 60 parts reinforcing silica filler, (B) 10 to 250 parts water containing a smectite clay, (C) 0.1 to 15 parts emulsifier, and (D) a cross-linking agent (e.g., an organohydrogenpolysiloxane) in an amount sufficient for cross-linking component (A) and a catalyst (e.g., a platinum-type catalyst). A method for preparing the aforementioned emulsion composition comprising mixing components (A) and (E) with other components in a high-speed stirrer-equipped mixer. A method of manufacturing a silicone rubber comprising either heating and dehydrating the aforementioned emulsion composition.

Abstract: A polymer cures by both radiation and moisture curing mechanisms. The polymer is prepared by hydrosilylation. The polymer is useful in adhesive compositions. The polymer includes units of formulae (I), (R22Si02/2)b, (R2Si03/2)c, (Si04/2)d, (R1)f, and (R23SiO1/2)g, where each R1 is independently an oxygen atom or a divalent hydrocarbon group; each R1 is independently divalent hydrocarbon group; each R2 is independently a monovalent organic group that is free of terminal aliphatic unsaturation each X is independently a monovalent hydrolyzable group; each J is independently a monovalent epoxy functional organic group; subscript a has a value of 1 or more; subscript b has a value of 0 or more; subscript c has a value of 0 or more; subscript d has a value of 0 or more; subscript e has a value of 1 or more; subscript f has a value of 0 or more; subscript g has a value of 0 or more; subscript s is 1, 2, or 3; and subscript t is 1, 2, or 3.

Abstract: An ultra violet light transmitting polymer is obtainable by the polymerisation of at least one compound having a substantially non UV absorbing core group comprising; linear or branched aliphatic hydrocarbons which may contain an aliphatic ring; or polydialkylsiloxanes. The compounds have at least one functional group comprising formula (A), (B) or (C):and each of the groups —R3— are, independently, linking groups which may be present or absent and, where present, may be a C1 to C10 hydrocarbon chain, which may contain an ether linkage. Methods for producing the polymers and uses for the polymers are also described.

Abstract: Vesicle compositions from high molecular weight silicone polyether copolymers, methods for preparing the vesicle compositions, and personal, household, and healthcare formulations containing the vesicle compositions are disclosed.

Abstract: The present invention relates to a silicone elastomer composition for an artificial integument which satisfies the following formula: tan ??0.23?0.006X wherein tan ? represents the loss tangent of a cured product of the aforementioned composition; and X represents the Asker C hardness of a cured product of the aforementioned composition. With the composition of the present invention, an artificial integument which has not only a similar outer appearance, but also a similar flexible feeling on touch to the skin, can be obtained by a simple process.

Abstract: Polymers whose surfaces are modified by endgroups that include amphipathic surface-modifying moieties. An amphipathic endgroup of a polymer molecule is an endgroup that contains at least two moieties of significantly differing composition, such that the amphipathic endgroup spontaneously rearranges its positioning in a polymer body to position the moiety on the surface of the body, depending upon the composition of the medium with which the body is in contact, when that re-positioning causes a reduction in interfacial energy. An example of an amphipathic surface-modifying endgroup is one that has both a hydrophobic moiety and a hydrophilic moiety in a single endgroup. For instance, a hydrophilic poly(ethylene oxide) terminated with a hydrophilic hydroxyl group is not surface active in air when the surface-modifying endgroup is bonded to a more hydrophobic base polymer.

Abstract: Film-forming materials include resins and/or crosslinkers having a covalently bonded phosphorous atom, the phosphorous atom having at least one covalently bonded oxygen atom. Film-forming resins containing phosphorous can include epoxy, acrylic, polyurethane, polycarbonate, polysiloxane, polyvinyl, polyether, aminoplast, and polyester resins. A process to produce a film-forming resin includes reacting various polymers to incorporate a pendent group comprising a covalently bonded phosphorous atom. Film-forming resins can be used in methods of producing coating compositions. Coating compositions can be used to coat a substrate, such as a metal substrate, by electrodeposition. Applied coatings containing the film-forming resins can be cured to form crosslinked films on substrates.

Abstract: The silica film forming material of the present invention comprises a silicone polymer which comprises, as part of its structure, CHx, an Si—O—Si bond, an Si—CH3 bond and an Si—CHx- bond, where x represents an integer of 0 to 2.

Abstract: Cyclic silazanes containing an oxamido ester group and methods of making these compounds are described. The compounds can be used, for example, to make oxamido ester-terminated siloxanes, which can be precursors for the preparation of various polymeric materials such as, for example, polydiorganosiloxane polyoxamides.

Abstract: A curing resin composition which enables formation of an antireflection layer having good antiscratchability and a cured film obtained from such a curing resin composition are disclosed. The curing resin composition contains (A) a siloxane oligomer having an average molecular weight of 500-10000 in terms of ethylene glycol and (B) a fluorine compound having a number-average molecular weight of 5000 or more in terms of polystyrene and having a fluoroalkyl structure and a polysiloxane structure.

Abstract: Defoamer compositions of high effectiveness containing at least one siloxane-based antifoam and polysiloxane copolymers obtained by coupling a polysiloxane bearing active-hydrogen-containing hydrophilic polymer moieties by means of a di- or polyisocyanate.

Abstract: The present invention relates to a coating composition for a dielectric insulating film comprising a) an organosiloxane polymer, b) first metal ions selected from the group consisting of Rb ions, Cs ions, and a mixture thereof, and c) an organic solvent, in which the first metal ions are comprised at 1 to 200 ppm based on the weight of the composition, a dielectric insulating film prepared therefrom, and an electric or electronic device comprising the same. A dielectric insulating film prepared from the coating composition of the present invention has an improved dielectric constant and superior mechanical strength and electric properties.

Abstract: The present invention relates to a polymer matrix for specifically tethering surface epitopes or receptors of cells, said polymer matrix having been pretreated by molecular imprinting. The invention also relates to a method of producing such a polymer matrix. The polymer matrices according to the present invention are used in therapeutic and diagnostic applications as well as for isolating cells.

Abstract: A self-adhesive organopolysiloxane composition is provided comprising (A) an organopolysiloxane containing at least two silicon-bonded alkenyl groups, (B) an organohydrogenpolysiloxane containing at least two SiH groups, (C) a hydrosilylation catalyst, and (D) an adhesive component obtained by previously mixing (i) a titanium chelate catalyst and/or a tetraorganoxytitanium and (ii) a silane coupling agent and aging the mixture. The composition cures at room temperature or lower temperature while it is fully adhesive to metal and plastic substrates.

Abstract: The present invention is directed to organo-silicone compound that have alkoxylated allyl alcohol groups of different degree of ethylene oxide and or propylene oxide present on two or more different groups. It is also directed to the use of that compound in personal care and other applications. These compounds by virtue of their unique structure provide outstanding emulsions including microemulsions.

Abstract: A process for condensation between at least one ?SiOH unit and at least one ?SiOR unit is provided. In accordance with the present invention, R=a hydrogen or a C1-C20 hydrocarbon group optionally comprising one or more heteroatoms, and the ?SiOH and ?SiOR units belong to at least one identical or different (organo)silicon compound P. The process is conducted in the presence of an effective amount of at least one catalyst C, comprising a carbene. Compositions are also provided.

Abstract: This invention pertains to a silsesquioxane resin with improved lithographic properties (such as etch-resistance, transparency, resolution, sensitivity, focus latitude, line edge roughness, and adhesion) suitable as a photoresist; a method for in-corporating the fluorinated or non-fluorinated functional groups onto silsesquioxane backbone. The silsesquioxane resins of this invention has the general structure (HSiO3/2)a(RSiO3/2)b wherein; R is an acid dissociable group, a has a value of 0.2 to 0.9 and b has a value of 0.1 to 0.8 and 0.9?a+b?1.0.

Abstract: A curable composition having good curability and adhesion comprising: (A) an reactive silicon group-containing organic polymer, (B) a titanium chelate represented by the general formula (1) or (2) and (C) a high molecular weight plasticizer having a number average molecular weight of 1,000 to 15,000. General formula (1): wherein each of n R1s is independently a substituted or unsubstituted hydrocarbon group having 1 to 20 carbon atoms, each of (4-n) R2s is independently hydrogen atom or a substituted or unsubstituted hydrocarbon group having 1 to 20 carbon atoms, each of (4-n) A1s and (4-n) A2s is independently —R3 or —OR3 where R3 is a substituted or unsubstituted hydrocarbon group having 1 to 20 carbon atoms, n is 1, 2 or 3. General formula (2): wherein R2, A1 and A2 are the same as defined above, R4 is a substituted or unsubstituted divalent hydrocarbon group having 1 to 20 carbon atoms.

Abstract: The invention relates to the synthesis of siloxane polymers containing self-complementary quadruple hydrogen bonding groups (4H-units). The resulting polymers show unique new characteristics that result from the reversible, physical interactions between the polysiloxane chains that are based on the (supramolecular) interactions between the 4H-units. The polysiloxanes in this invention show unprecedented bulk material properties and are used as gelling agents for silicone fluids. The resulting gels are clear and display good material properties, while having unparalleled high silicone fluid contents.

Abstract: Disclosed is a method of removing a residual catalyst metal compound from a polymer solution. The method comprises the steps of: a) mixing a solution in which at least one organic nitrogen compound is dissolved in a polar solvent and the polymer solution to precipitate a chelate compound of the organic nitrogen compounds and the residual catalyst metal compound, b) adding the polar solvent to the solution mixture to dissolve a chelate compound and to precipitate a polymer, and c) filtering the precipitated polymer. After the polymer polymerization is completed, an organic nitrogen compound solution is added to perform a chelate reaction with the residual catalyst metal compound in a solution phase, and the polar solvent is added to precipitate the polymer so that only polymer precipitates are filtered while an additional filtration process in respect to the chelate compound is not performed to easily remove the residual catalyst metal compound.

Abstract: A polycarbosilane has a main chain in which silicon atoms and carbon atoms are alternately repeated, and includes a structural unit shown by the following general formula (1), a structural unit shown by the following general formula (2), a structural unit shown by the following general formula (3), and a structural unit shown by the following general formula (4).

Abstract: Provided is a silicone composition, including: (A) an organopolysiloxane represented by an average composition formula R1nSiZ[(4?n)/2] (in which, R1 represents a monovalent hydrocarbon group, an alkoxy group or a hydroxyl group, provided that from 5 to 50 mol % of all R1 groups are alkenyl groups, and from 10 to 80 mol % of all R1 groups are aryl groups, Z represents an oxygen atom or a bivalent hydrocarbon group, provided at least 80 mol % of all Z groups are oxygen atoms, and n is a number that satisfies 1=n<2), in which from 5 to 50 mol % of all silicon atoms exist within structures represented by an average formula: —SiR22—X—(SiR22O)1SiR22—X—SiR22O— (in which, R2 represents a monovalent hydrocarbon group, provided that from 10 to 80 mol % of all R2 groups are aryl groups, X represents an oxygen atom or a bivalent hydrocarbon group, and l represents an integer of 3 or greater), (B) an organohydrogenpolysiloxane having at least 2 SiH groups within each molecule, and (C) an addition reaction catalyst.

Abstract: This invention discloses a process for manufacturing an elastomeric article by liquid injection molding, said process comprising the steps of: (I) heating a curable composition comprised of (1) a liquid polymer comprised of repeat units that are derived from a conjugated diolefin monomer, wherein said liquid polymer has a weight average molecular weight which is within the range of 5,000 to 100,000, and wherein the liquid polymer is functionalized with an amine moiety, (2) a carbonyl inhibited platinum catalyst, and (3) a tetrakis(dialkyl siloxy) silane crosslinking agent, to a temperature which is within the range of 30° C. to 100° C.; (II) injecting the heated curable composition into a mold at a temperature which is within the range of 100° C. to 210° C. to produce the elastomeric article; and (III) removing the elastomeric article from the mold.

Abstract: This invention provides a film forming composition for nanoimprinting, which has excellent resistance to etching with oxygen gas, can prevent the separation of a transfer pattern, can eliminate a problem of a holing time on a substrate, and is also excellent in transferability, and photosensitive resist, a nanostructure, a method for pattern formation using the same, and a program for realizing the method for pattern formation. The film forming composition for nanoimprinting comprises a polymeric silicon compound having the function of causing a photocuring reaction. Preferably, the polymeric silicon compound has a functional group cleavable as a result of response to electromagnetic waves and causes a curing reaction upon exposure to electromagnetic waves. More preferred are siloxane polymer compounds, silicon carbide polymer compounds, polysilane polymer compounds, and silazane polymer compounds, or any mixture thereof.

Abstract: A plasma cross-linked surface coating of an oligomer has resulted in a low friction surface coating that is also highly durable. The coated device comprises a metal substrate and a plasma cross-linked coating of an oligomer having a molecular weight less than 10,000, and in one embodiment a molecular weights between 1000 and 10,000.

Abstract: A light filter or an array of filters can be either one or two dimensional. The filter or filters use multiple beam interference by varying an optical path length between semi-reflective surfaces. The optical path length between the semi-reflective surfaces is varied by changing a thickness of a polymer film in response to an electric field formed between two semi-transparent electrodes. The filter can be configured in either a transmissive or reflective mode.

Abstract: Radiation-curable silsesquioxane resin materials are employed for micro- and nanolithography. The resin materials can include a radiation-curable silsesquioxane resin and a photo-initiator having low viscosity. The low viscosity of the liquid system allows imprinting with low pressure and low temperature; e.g. room temperature. The resist's dry etching resistance is increased and the cured film is more easily separated from the mask. Due to its high modulus after cure, the material allows the fabrication of micro- and nano-features having high aspect ratios while providing a high throughput. Various pattern sizes, for example, ranging from tens of microns to as small as a few nanometers, may be achieved with the UV-curable material system.

Abstract: Provided is a room temperature-curable, heat-conductive silicone rubber composition, including: (A) a diorganopolysiloxane with both molecular chain terminals blocked with hydroxyl groups and/or organooxy groups, (B) a heat-conductive filler other than a palladium powder, (C) an organosilane containing two or more hydrolyzable groups, and/or a partial hydrolysis-condensation product thereof, and (D) a palladium powder. The composition improves on the drawbacks of the conventional technology, is able to suppress the quantity of hydrogen gas produced from the heat-conductive filler, exhibits superior storage properties, and yields a low-hardness cured product upon curing. The cured product is useful as a heat-conductive material for a heat-generating electronic component.

Abstract: Disclosed is a simplified method for producing a polysiloxane in which wastes discharged during the production are reduced. This method for producing a polysiloxane is characterized in that a mixture of a silicon-containing compound represented by the following average composition formula (A): R1a(R2O)bSiO[(4-a-b)/2] (where R1s represent the same or different substituted or unsubstituted monovalent hydrocarbon groups; R2 represents a monovalent hydrocarbon group having 4 or less carbon atoms; and a and b satisfy 0?a?3; 0<b?4; and 0<a+b?4) and water is subjected to a hydrolysis-condensation reaction at a temperature of not less than 200° C. under a pressure of not less than 2.5 MPa.

Abstract: A process for preparing a binder which comprises a heterocondensate of silicon compounds and metal and/or boron compounds. The process comprises mixing a silicon component which comprises (A), at least one hydrolyzable silicon compound having a non-hydrolyzable polymerizable group, with water to form a hydrolysis product, and 15 s to 15 min after mixing (A) with water, the addition of (B), at least one compound of boron or a metal selected from Al, Ga, In, Tl, Ge, Ga, Sn, Pb, Ti, Zr, Hf, Sc, Y and La.

Abstract: An organosilicon compound having a structure represented by following general formula: R1: methyl group or ethyl group, R2: a branched or linear, saturated or unsaturated aliphatic hydrocarbon group having 3 to 8 carbon atoms, n: 0.5˜2.5 (an average composition), R3: a divalent hydrocarbon group of —CH2—, —CH2CH2—, —CH2CH2CH2—, —CH2CH2CH2CH2—, —CH2CH2CH2CH2CH2—, —CH(CH3)—, —CH2CH(CH3)—, —C(CH3)2—, —CH(C2H5)—, —CH2CH2CH(CH3)—or —CH2CH(CH3)CH2—, X: S, S(C?O)—R4, SH or NH(3-p), and R4: a branched or linear, saturated or unsaturated aliphatic hydrocarbon group having 1 to 30 carbon atoms. When X?S, p=2 and m=1˜10. When X?S(C?O)—R4, p=1 and m=1. When X?SH, p=1 and m=1. When X?NH(3-p), p=1˜3 and m=1. The organosilicon compound simultaneously suppresses discharge of volatile alcohols generated during the reaction with an inorganic filler and exhibits great reactivity with the inorganic filler.

Abstract: An organic-inorganic composition, which has a backbone containing —Si—O— units with chromophore groups attached directly to at least a part of the silicon atoms. The film forming composition and resulting coating properties can be tailored to suit the specific exposure wavelength and device fabrication and design requirements. By using two different chromophores the refractive index and the absorption co-efficient can be efficiently tuned and a desired Si-content of the anti-reflective coating composition can be obtained—a high Si-content will give good mechanical and thermal properties and also the required wet etch and dry etch properties.

Abstract: The present invention relates to an inkjet recording element having outstanding dye keeping properties in time. Said recording element comprises at least one molecular imprinted polymer having sites of selective recognition of dye molecules corresponding to the dye molecules used in inks for inkjet printing.

Abstract: The present invention relates to a two-step method of preparing methylsilsequixane (MSQ) materials suitable for chromatographic applications comprising treating a MSQ precursor with a suitable acid followed by treatment with a suitable base under conditions to form a MSQ monolith suitable for chromatographic applications.

Abstract: An organopolysiloxane having triazinethiol and alkenyl radicals in a molecule and a primer composition comprising the same are provided. The primer composition assists in establishing a high bond strength between metal and silicone rubber by the mechanism that the triazinethiol moieties form strong chemical bonds with a difficult-to-bond metal such as gold, silver or copper, and the alkenyl moieties are involved in silicone rubber vulcanization.

Abstract: The present invention generally relates to pre-polymer and polymer compositions that can be photopolymerized. In one embodiment, the present invention relates to crosslinking agents that can be used in the photopolymerization of the pre-polymers and polymers disclosed herein. In another embodiment, the present invention relates to processes for producing pre-polymer, polymer and crosslinking compositions useful in photopolymerization reaction schemes. In one instance, the pre-polymers and polymers of the present invention can be crosslinked via a suitable crosslinking agent to produce networks (e.g., amphiphilic networks and/or co-networks).

Abstract: A process for production of an assembly including several silicone elements crosslinked by polyaddition of ?Si—H units onto ?Si-alkenyl (preferably ?Si-vinyl) units, the elements adhering to one another without detracting from their mechanical properties. The process includes: (I) forming (1st coating) a silicone element (i) with a liquid silicone preparation (i) containing polyorganosiloxanes (POS) A with ?Si-vinyl units, (POS) B with ?Si—H units, a platinum catalyst C; (II) crosslinking so that (i) has a surface density SD of unreacted, residual vinyl, per nm2, of 0.0100?SD?0.0040; (III) optionally repeating steps (I) and (II) n times to give n elements (i) that adhere to one another; (IV) forming (2nd coating) a silicone element (ii) with a liquid silicone preparation (ii) of the same type as described above; (v) crosslinking to give crosslinked (ii) that adheres to (i).

Abstract: The present invention concerns items that contain or consist of a plasma polymer product, consisting of carbon, silicon, oxygen and hydrogen, wherein the ESCA spectrum of the plasma polymer product, with calibration to the aliphatic portion of the C 1s peak at 285.00 eV, in comparison with a trimethylsiloxy-terminated polydimethylsiloxane (PDMS) with a kinematic viscosity of 350 mm2/s at 25° C. and a density of 0.97 g/ml at 25° C., the Si 2p peak has a bond energy that is shifted by 0.44 eV, at most, to higher or lower bond energies, and the O 1s peak has a bond energy that is shifted by 0.50 eV, at most, to higher or lower bond energies.

Abstract: Provided is a method of producing a high molecular weight organopolysiloxane with a polystyrene equivalent weight average molecular weight of at least 5×104, comprising the steps of producing an organopolysiloxane by subjecting a silane compound having a hydrolyzable group to a first hydrolysis and condensation, and then subjecting that organopolysiloxane to an additional second hydrolysis and condensation. The high molecular weight organopolysiloxane is stable, resistant to gelling, and resistant to cracking even when formed as a thick film. A resin composition comprising the high molecular weight organopolysiloxane and a condensation catalyst is useful for sealing an optical element and for producing an optical semiconductor device.

Abstract: Low temperature hydrosilylaltion reactions to create silicone release coatings utilizing hydridosiloxanes that are branched due to the incorporation of T or Q units, and the inclusion of MH terminal units. The hydridosiloxanes of the present invention provide for faster reaction at low temperatures while providing the optimal MH to DHratio and maintaining the required physical properties of the desired polymer product. The silicone release coatings of the present invention are valuable for use on heat-sensitive supports or films.

Abstract: The objective of the present invention is to provide a polycarbosilane having excellent solubility in common organic solvents and a method for production thereof. The polycarbosilane of the present invention is a polymer which is represented by the following general formula (1) and has an oxetanyl group in a side chain. R1 is an alkyl group having no oxetanyl groups, aryl group having no oxetanyl groups, or an organic group having an oxetanyl group, R2 is an organic group having an oxetanyl group, R3 is an alkylene group, an arylene group, or an aralkylene group, and n is an integer of 5 to 200.

Abstract: To provide a curable composition which has a high curing rate and can provide a cured product having good durability. A curable composition comprising an oxyalkylene polymer (A) having a reactive silicon group represented by the following formula (1), and a quaternary ammonium salt (B): —SiX1aR13-a??(1) wherein R1 is a C1-20 monovalent organic group which may have a substituent, X1 is a hydroxyl group or a hydrolyzable group, and a is an integer of from 1 to 3; provided that when plural R1s are present, they may be the same or different from one another, and when plural X1s are present, they may be the same or different from one another.

Abstract: A topcoat composition to be applied on a resist film is provided, the topcoat composition including: (A) an alkali-soluble resin; (B) a compound containing at least one of an Si atom and an F atom, and increasing a contact angle on a surface of the topcoat film; and (C) a solvent.

Abstract: Disclosed herein is a silicone particle with excellent hydrophobic and alkali proof properties. The present invention provides a method of controlling surface hydroxyl groups by treating the surface of silicone particles with alkali metal ions or alkaline earth metal ions. The present invention also provides a coating composition using the silicone particle, in which the amount of hydroxyl groups present on the surface of the silicone particle can be controlled.

Abstract: Branched polysilane copolymers are prepared via a Wurtz-type coupling reaction by reacting a mixture of two different dihalosilanes and a single trihalosilane with an alkali metal coupling agent in an organic liquid medium. The branched polysilane copolymers are recovered from the reaction mixture. Capped branched polysilane copolymers are prepared via the same Wurtz-type coupling reaction with addition of a capping agent to the reaction mixture. The capping agent is a monohalosilane, monoalkoxysilane, dialkoxysilane, or trialkoxysilane. The branched polysilane copolymers and the capped branched polysilane copolymers are soluble in organic liquid medium.

Abstract: A polycarbonate such as aliphatic/aromatic polycarbonate comprises repeating structural carbonate units of the formula (H-1): in which Rh is a radical having the formula (H-2): wherein each of R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24, R25, R26, R27, and R28 is independently a hydrogen, a C1-C6 alkyl group, or a halogen substituted C1-C6 alkyl group. The polycarbonate, and a thermoplastic composition thereof, have improved thermal stability, cost-effectiveness, and exhibit improved manufacturability such as, for example, minimum cyclic carbonate formation and minimum amine acceptor requirement.

Abstract: A curable organopolysiloxane resin composition having a viscosity at 25° C. in the range of 0.001 to 5,000 Pa·s, a total acid number as specified by JIS K 2501 (1992) in the range of 0.0001 to 0.2 mg/g, and light transmittance in a cured state equal to or greater than 80%; an optical part comprised of a cured body of the aforementioned composition. The curable organopolysiloxane resin composition of the invention is characterized by good transparency, low decrease in transmittance when exposed to high temperatures, and excellent adhesion when required.

Abstract: A stacked structure including a soluble organic semiconductor material and a water soluble photosensitive material is provided. The water soluble photosensitive material is disposed on the surface of the soluble organic semiconductor material.

Abstract: The invention relates to, and the general field of the invention is that of, the synthesis of silicone resins, more particularly the synthesis of silicone resins of type MQ. The process relates to the preparation of MQ silicone resins and permits better control of the operating conditions in the step of the polymerization of a sodium silicate (B) in aqueous medium in the presence of an acid (C) to form a silica hydrosol (polysilicic acid). In the course of the polycondensation step the reactants, a sodium silicate and an acid, are mixed, preferably in continuous fashion, dynamically to form a mixture (3), by means of at least one intensive mixing tool (M) producing a power ? per unit volume of more than 10 kW/m3.