Abstract: A process includes the steps of: 1) heating a mold at a temperature ranging from 100° C. to 200° C.; 2) feeding a silicone encapsulant composition including a mold release agent, where the composition has a viscosity ranging from 100 cps to 3,000 cps at operating temperatures of the process, to an assembly for preventing the silicone encapsulant composition from flowing backward out of the assembly; 3) injecting the silicone encapsulant composition from the assembly into a mold having a horizontal orientation and having a mold cavity through a gate, where the mold cavity has a top and a bottom, a vent is located at the top of the mold cavity, the vent comprises a channel 0.1 mm to 1 mm wide by 0.0001 mm to 0.

Abstract: A polymer that is a polysiloxane polymer has Levofloxacin groups, or pharmaceutically acceptable salts thereof, attached via linkers. The linkers may be hydrolytically labile thereby providing a manner of releasing the Levofloxacin from the polymer.

Abstract: The present invention relates to the production of amphiphilic copolymer networks or co-networks that are both hydrophobic and hydrophilic, the copolymer networks comprise polyalkylene glycol segments and disubstituted polysiloxane segments. Furthermore, the present invention relates to products and/or films made from the amphiphilic copolymer networks or co-networks produced in accordance with the synthesis methods of the present invention. In one embodiment, amphiphilic networks or co-networks are synthesized using functional multiblock co-polymers according to the formula (AY)x(BY)y, where A represents an alkylene glycol polymer having n repeating alkylene glycol units, B represents a disubstituted siloxane polymer having m repeating siloxane units, and Y represents a molecule (e.g., a silane) that functions both as a chain extender and a crosslinker.

Abstract: Described is a method for producing a molded silicone rubber product using a liquid silicone rubber (LSR) base comprising at least one vinyl siloxane polymer, at least one hydride crosslinker, and optionally at least one injection molding inhibitor. The single LSR base is fed into a feed line, and into the feed line are fed an inhibitor master batch comprising at least one liquid injection molding inhibitor and at least one vinyl siloxane polymer, and a catalyst master batch comprising at least one catalyst and at least one vinyl siloxane polymer. The invention is further directed to: said LSR base; said inhibitor master batch; said catalyst master batch; and a molded silicone rubber article produced by the methods and compositions described herein.

Abstract: A method for the preparation of hydrophilic elastomers involves the synthesis of polydimethylsiloxane with tunable hydrophilic surface properties. An elastomeric monolith with desired hydrophilic properties is produced by combining a polyethylene oxide polymeric surfactant additive with a PDMS base and curing agent during polymerization. The surfactant chain segment lengths are varied to control the hydrophobic/hydrophilic balance.

Abstract: A process for making a foam control composition comprising a cross-linked polyorganosiloxane in which is dispersed a filler, with hydrophobic surface, comprising step (A) mixing (i) a finely divided filler, (ii) a polyorganosiloxane having on at least two reactive substituents, for example on average two reactive substituents, and (iii) a polyorganosiloxane having at least three reactive substituents, capable of addition reaction via hydrosilylation; (B) hydrosilylation reaction of components (ii) and (iii) until the mixture at least partially gels, followed by applying shearing forces to this at least partially gelled mixture. Optionally step (A) comprises a diluent or solvent and after step (B) an emulsification step is carried out to make the foam control composition into an O/W emulsion.

Abstract: The present invention is to provide a silicone having (meth)acryl groups on both ends of a molecule and represented by the formula (I): wherein R1 is represented by the following formula: wherein n is 3 or 4, k is an integer of from 1 to 15, j is an integer of from 0 to 15, and Q2 is a methyl group or a hydrogen atom; R2 is, independently of each other, a group selected from the group consisting of hydrocarbon groups and halogenated hydrocarbon groups, both having 1 to 10 carbon atoms; R3 is a group represented by the following formula: —CmH2mO(C2H4O)x(C3H6O)yQ1 wherein m is 3 or 4, x is an integer of from 1 to 15, y is an integer of from 0 to 15, and Q1 is a methyl group or a hydrogen atom; a is an integer of from 1 to 500; and b is an integer of from 1 to 100, with a total of a and b being 50 to 500.

Abstract: The present invention is directed to compositions and processes that are useful in making organosilicon polymers, including cross-linked organosilicon networks. The invention is also directed to articles that incorporate the cross-linked organosilicon networks.

Abstract: The present invention relates to a silphenylene compound represented by the following formula (1): in which R1 to R4 each independently represents a hydrogen atom or a monovalent hydrocarbon group having 1 to 6 carbon atoms, and R5 and R6 each independently represents a divalent hydrocarbon group having 2 to 8 carbon atoms. The silphenylene compound of the present invention is useful as a flexible printed wiring board material, a passivation film for IC chips, and a panel material for liquid crystals.

Abstract: A curable silicone composition comprising at least the following components: (A) a diorganopolysiloxane having in one molecule at least two alkenyl groups; (B) at least two resin-like organopolysiloxanes that have different mass-average molecular weights as reduced into standard polystyrene measured gel permeation chromatography and that are composed of SiO4/2 units, R12R2SiO1/2 units, and R13SiO1/2 units, wherein R1 is an optionally substituted univalent hydrocarbon group that is free of aliphatic unsaturated bonds and R2 is an alkenyl group; (C) an organopolysiloxane that contains in one molecule at least two silicon-bonded hydrogen atoms; and (D) a hydrosilylation catalyst; possesses excellent flowability and filling ability and that can be prepared without extreme viscosity even if the composition contains resin-like organopolysiloxanes required to form a cured silicone body of appropriate strength and hardness.

Abstract: A solvent-free silicone composition for release paper, comprising a mixture prepared by i) subjecting the organopolysiloxane (I) which is composed of R13SiO1/2 units, SiO4/2 units and (HO)SiO3/2 units, and has an OH group content of from 0.02 to 0.1 mol/100 g, to a partial condensation reaction in an organic solvent in the presence of an alkaline catalyst and the organopolysiloxane (II) represented by the following formula (2), and ii) removing the organic solvent, said mixture having an OH group content of less than 0.02 mol/100 g. The composition forms a tight-release layer stable with time.

Abstract: A novel polyether-modified organopolysiloxane and a novel diorganopolysiloxane-polyether block copolymer are more resistant to oxidation than the heretofore existing polyoxyalkylene-modified organopolysiloxanes and are thus more resistant to producing allergenically antigenic oxidation products during elapsed time in storage. Methods of producing this novel polyether-modified organopolysiloxane and novel diorganopolysiloxane-polyether block copolymer are also provided, as well as cosmetic that the modified organopolysiloxane or diorganopolysiloxane-polyether block copolymer.

Abstract: Alkoxysilyl-functional polyether-siloxanes and processes for preparing them by noble metal-catalysed SiC coupling of hydrogensiloxanes having SiH groups with unsaturated polyethers bearing alkoxysilyl groups or by alkoxylation of polyethersiloxanes or polysiloxanes by means of epoxy-functional alkoxysilanes in the presence of double metal cyanide catalysts.

Abstract: In a polycarbonate resin composition containing a polycarbonate resin and a polycarbosilane compound, the use of the polycarbosilane compound modifies the surface properties of the polycarbonate resin composition without adversely affecting the intrinsic characteristics of the polycarbonate resin, such as transparency, heat resistance, and mechanical properties, e.g., impact resistance. A polycarbonate resin composition containing 100 parts by mass of a polycarbonate resin, 0.001 to 1 part by mass of a metal salt compound, and 0.005 to 5 parts by mass of a polycarbosilane compound has significantly improved flame resistance and high transparency and causes markedly reduced outgassing and mold fouling, without losing impact resistance and heat resistance.

Abstract: This invention pertains to silsesquioxane resins useful in antireflective coatings wherein the silsesquioxane resin comprises the units (Ph(CH2)rSiO(3-x)/2(OR?)x)m(HSiO(3-x)/2(OR?)x)n (MeSiO(3-x)/2(OR?)x)c, (RSiO(3-x)/2(OR?)x)p (R1SiO(3-x)/2(OR?)x)q where Ph is a phenyl group, Me is a methyl group; R? is hydrogen atom or a hydrocarbon group having from 1 to 4 carbon atoms; R is selected from a carboxylic acid group, a carboxylic acid forming group, and mixtures thereof; and R1 is selected from substituted phenyl groups, ester groups, polyether groups; mercapto groups, sulfur-containing organic functional groups, hydroxyl producing group, aryl sulphonic ester groups, and reactive or curable organic functional groups; and r has a value of 0, 1, 2, 3, or 4; x has a value of 0, 1 or 2; wherein in the resin m has a value of 0 to 0.90; n has a value of 0.05 to 0.99; o has a value of 0 to 0.95; p has a value of 0.01 to 0.5; q has a value of 0 to 0.5; and m+n+o+p+q?1.

Abstract: A composition includes a copolymer including a mixture of monomeric units having structures (A), (B), and (C), and one or more of structures (D) or (E): HSiO(3-a)/2(OH)a??(A) Si(3-b)/2(OH)b—CH2)n—SiO(3-c)/2(OH)c??(B) R1SiO(3-d)/2(OH)d??(C) MeSi(3-e)/2(OH)e??(D) R2SiO(3-f)/2(OH)f??(E) wherein a, b, c, d, e, and f are independently from 0 to 2, n is from 0 to about 10, R1 is a chromophore, and R2 is a hydrophilic group.

Abstract: A compound having the formula below. Each R is methyl or phenyl; R2 comprises one or more of silane, siloxane, and aromatic groups; n is a nonnegative integer; and m is 1 or 2. The dashed bond is a single bond and the double dashed bond is a double bond, or the dashed bond is a double bond and the double dashed bond is a triple bond. A polymer made by a hydrosilation reaction of a polyhedral oligomeric silsesquioxane having pendant siloxane groups with an acetylene- and silicon-containing compound having at least two vinyl or ethynyl groups, and a crosslinked polymer thereof. The reaction occurs between the pendant siloxane groups and the vinyl or ethynyl groups.

Abstract: The present invention is directed to a series of vinyl ether based silicone polymers and their use in personal care applications. They are prepared by the hydrosilylation reaction of a vinyl ether and a silanic hydrogen compound. The compounds find use in personal care applications.

Abstract: Provided are polycarbosilane and a method of producing the same. The polycarbosilane contains an allyl group, and thus can be cured by UV absorption when not exposed to the air.

Abstract: A curable organopolysiloxane composition and an optical semiconductor element sealant, each comprising (A) a diorganopolysiloxane that has at least 2 alkenyl groups wherein at least 70 mole % of all the siloxane units are methylphenylsiloxane units and the total content of 1,3,5-trimethyl-1,3,5-triphenylcyclotrisiloxane and 1,3,5,7-tetramethyl-1,3,5,7-tetraphenylcyclotetrasiloxane is no more than 5 weight %, (B) an organopolysiloxane that has at least 2 silicon-bonded hydrogen atoms wherein at least 15 mole % of the silicon-bonded organic groups are phenyl groups, and (C) a hydrosilylation reaction catalyst. An optical semiconductor device in which an optical semiconductor element within a housing is sealed with the cured product from the aforementioned composition.

Abstract: A perfluoropolyether-polyorganosiloxane copolymer comprising at least one perfluoropolyether block, at least one polyorganosiloxane block which may has a silalkylene group, and two monovalent groups represented by the following formula (1), each one at both ends of the copolymer, wherein X is a hydrolyzable group, R1 is an alkyl group having 1 to 4 carbon atoms or a phenyl group, y is an integer of from 1 to 5, and a is an integer of 2 or 3, said copolymer having a number average molecular weight, reduced to polystyrene, of from 7,000 to 25,000.

Abstract: A silicone resin composition and process for coating a light transmitting surface of an optoelectronic device is disclosed. The process involves applying a silicone resin to the light transmitting surface, and causing the silicone resin to cure to form a light transmitting protective coating on the light transmitting surface, the silicone resin having a sufficiently low proportion of organosiloxanes having molecular weights of up to about 1000, such that the protective coating includes less than about 10% of the organosiloxanes having molecular weights of up to about 1000.

Abstract: Provided in one aspect is a method of melt blending comprising providing an extruder possessing addition points from a zero point to a 100 point the length of the extruder; adding at least one thermoplastic and at least one curable polymer at the zero to 10 point of the extruder; adding at least one silicone hydride at the 5 to 30 point of the extruder; adding at least one metal catalyst at the 20 to 60 point of the extruder, with the proviso that the metal catalyst is added at least 5 points farther down the extruder than the silicone hydride. Provided in another aspect is a hydrosilylation curative composition comprising a silicone hydride having the formula wherein H is hydrogen, and each R? is independently selected from hydrogen and C1 to C10 alkyl groups; R? is selected from C1 to C10 alkyl groups; n is an integer from 5 to 45; and m is an integer from 5 to 45.

Abstract: Ru(0) complexes containing sulfoxide ligands and aliphatically unsaturated ligands are effective hydrosilylation catalysts useful in particular for addition curing organosilicon compositions.

Abstract: The present invention relates to a perfluoropolyoxyalkylene group-containing polymer represented by the following formula (1), wherein Rf is a group having a perfluoropolyoxyalkylene group; W1 is a divalent organosiloxane group having at least one group represented by the following formula (2); W2 is a monovalent group selected from an alkyl group, an alkenyl group, an alkenyloxyalkyl group, an aryl group and an organosiloxane group represented by the following formula (3), and the combinations thereof, the monovalent group having 1 to 300 carbon atoms and being optionally substituted with one or more fluorine atoms; Q is, independently of each other, a divalent linking group having 2 to 12 carbon atoms, optionally containing one or more oxygen atoms, nitrogen atoms, or fluorine atoms; and p is an integer of from 1 to 20, wherein X is a hydrolysable group; R1 is an alkyl group having 1 to 4 carbon atoms or a phenyl group; y is an integer of from 1 to 5; and a is 2 or 3, wherein, R2 a

Abstract: The present invention relates to a composition for a thermosetting silicone resin including: (1) a dual-end silanol type silicone oil; (2) an alkenyl-containing silicon compound; (3) an organohydrogensiloxane; (4) a condensation catalyst; and (5) a hydrosilylation catalyst, in which the (4) condensation catalyst includes a tin complex compound.

Abstract: The invention provides novel siloxane monomers useful in a variety of adhesive applications. In one aspect, the siloxane compounds described herein can be used as Diels-Alder type curatives for bismaleimide or poly-maleimide monomers. The unsaturated resins shown here are attractive for use as maleimide curatives due to their poly-functionality. Each substituted styrenyl residue can react with two maleimide functional groups. Thus, an invention adhesive composition typically contains an excess of bismaleimide monomers.

Abstract: A process is disclosed for the preparing silicone polyethers by reacting; (A) a polyether having at least one terminally unsaturated aliphatic hydrocarbon group and an alkali metal content of less than 50 ppm, (B) an organohydrogensiloxane having an acid number of less than 0.005, via a hydrosilylation reaction. The process is particularly useful to prepare silicone polyethers of improved quality via a continuous process.

Abstract: An organohydrogenpoly siloxane resin having the formula (I): (R1R32SiO½)w(R32SiO½)x(R1SiO3/2)y(SiO4/2)z, wherein R1 is C1 to C10 hydrocarbyl or C1 to C10 halogen-substituted hydrocarbyl, both free of aliphatic unsaturation, R3 is R1 or an organosilylalkyl group having at least one siliconbonded hydrogen atom, w is from 0 to 0.8, x is from 0 to 0.6, y is from 0 to 0.99, z is from 0 to 0.35, w+x+y+z=1, y+z/(w+x+y+z) is from 0.2 to 0.99, w+x/(w+x+y+z) is from 0.01 to 0.8, and at least 50 mol % of the groups R3 are organosilylalkyl; a silicone composition containing the resin, and a cured silicone resin prepared by curing the silicone composition.

Abstract: A silicon-containing compound of formula (1), and a curing composition containing a silicon-containing compound of formula (1) wherein Z is hydrogen, a silicon-containing compound of formula (1) wherein Z is C2-C4 alkenyl or alkynyl and a hydrosilylation catalyst. The composition has excellent handling and curing properties and provides a cured product with excellent heat resistance and flexibility. In formula (1), Ra-Rg=C1-C12 saturated aliphatic hydrocarbon group or C6-C12 aromatic hydrocarbon group. Re and Rf do not simultaneously represent C1-C12 saturated aliphatic hydrocarbon group; Y=C2-C4 alkylene; Z=hydrogen or C2-C4 alkenyl or alkynyl; K is 2-7; T is 1-7; P is 0-3; and M and N are numbers selected such that N:M=1:1 to 1:100, that all M's and N's total at least 15, and that the mass average molecular weight of the compound of formula (1) is 3,000 to 1,000,000.

Abstract: A one or two part organopolysiloxane composition capable of cure to an elastomeric body, the composition comprising a polymer having a polymer backbone selected from an organopolysiloxane backbone and a telechelic backbone, which polymer has not less than two reactable silicon-bonded groups selected from alkenyl group, condensable groups, silyl-hydride groups, 5 to 50% by weight of the composition of an extender; a suitable cure catalyst; and optionally a siloxane and/or silane cross-linker having at least two groups per molecule which are reactable with the reactable groups in (a) and/or one or more fillers. The extender is selected from an alicyclic ester having at least two ester groups, and a boiling point of at least 180° C. or a mixture thereof having a boiling point range commencing at 180° C. or above; each ester group being the same or different and comprising from 2 to 30 carbon atoms.

Abstract: A thermoconductive silicone elastomer comprising a silicone elastomer being a cured body of a hydrosilation-curable organopolysiloxane composition, a reinforcing fine powder silica, a thermoconductive inorganic powder, and a non-reactive organopolysiloxane that is liquid at room temperature which are dispersed in the aforementioned silicone elastomer; a thermoconductive medium comprising the aforementioned thermoconductive silicone elastomer; a hydrosilation-curable thermoconductive silicone elastomer composition comprising a hydrosilation-curable organopolysiloxane composition, a reinforcing fine powder silica, a thermoconductive inorganic powder, and a non-reactive organopolysiloxane that is liquid at room temperature.

Abstract: A process for preparing aldehyde functional organopolysiloxanes and the products prepared therefrom is disclosed. The process involves a hydrosilylation reaction between an aldehyde having a non -conjugated unsaturated group with a polyorganohydrogensiloxane.

Abstract: A process for preparing a cationically photopolymerizable siloxane oligomer, that includes: combining a platinum group catalyst, a hydrosiloxane compound selected from and a vinyl or allyl compound comprising a cationically photopolymerizable functionality; and then contacting the product with oxygen in the presence of the catalyst to form the cationically photopolymerizable multifunctional siloxane oligomer. R1 and R3 are independently fluoroethyl, methyl or phenyl.

Abstract: A silicone resin containing boron, aluminum, and/or titanium, and having silicon-bonded branched alkoxy groups; a silicone composition containing a silicone resin; and a method of preparing a coated substrate comprising applying a silicone composition on a substrate to form a film and pyrolyzing the silicone resin of the film.

Abstract: Provided is a curable silicone rubber composition, including: (A) an organopolysiloxane containing two or more silicon atom-bonded aliphatic unsaturated groups within each molecule, and containing a phenyl group and/or cyclohexyl group, (B) an organopolysiloxane resin with a three dimensional network structure consisting essentially of Q units and M units, and containing one or more phenyl groups and/or cyclohexyl groups, (C) an organohydrogenpolysiloxane, and (D) a platinum group metal-based catalyst, in which the component (B) exists in a quantity that represents from 20 to 80% by mass of the combination of the component (A) and the component (B), and in the component B, the quantity of low molecular weight substances, for which the weight average molecular weight measured by GPC and calculated against polystyrene standards is not greater than 500, is not greater than 5%.

Abstract: An organopolysiloxane represented by formula (1) shown below and having (3,5-diglycidylisocyanuryl)alkyl groups represented by formula (2) at least at both terminals of the main chain: wherein, each R1 represents, independently, a substituted or unsubstituted monovalent hydrocarbon group of 1 to 20 carbon atoms, R2 is a group represented by formula (2) shown below, X is a group represented by formula (3) shown below, a represents an integer of 0 to 100 and b represents an integer of 0 to 30, provided that 1?a+b, and c represents an integer of 0 to 10 wherein, R3 represents an alkylene group of 2 to 12 carbon atoms wherein, R1 and R2 are as defined above, d represents an integer of 0 to 30, and e represents an integer of 0 to 30.

Abstract: A method for preparing a functionalized polymer, the method comprising the steps of polymerizing monomer to form a reactive polymer, and reacting the reactive polymer with a protected polyoxime compound.

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 thermoconductive silicone elastomer comprising a silicone elastomer being a cured body of a hydrosilation-curable organopolysiloxane composition, a reinforcement fine silica powder, a thermoconductive inorganic powder, and an alkylphenylpolysiloxane that is liquid at room temperature. A hydrosilation-curable thermoconductive silicone elastomer composition comprising: a hydrosilation-curable organopolysiloxane composition, a reinforcement fine silica powder, a thermoconductive inorganic powder, and an alkylphenylpolysiloxane that is liquid at room temperature. A thermoconductive medium comprising the aforementioned thermoconductive silicone elastomer.

Abstract: The present invention is directed to a multifunctional organo-silicone compound and the use of the that compound in personal care and other applications. These compounds by virtue of their unique structure provide outstanding micro emulsions and provide outstanding skin feel.

Abstract: A composition includes: (A) an amide-substituted silicone and (B) a thermally conductive filler. The composition may be used as a thermal interface material for dissipating heat from electronic devices.

Abstract: A filler for filling a gap includes a hydrogenated polysiloxazane having an oxygen content of about 0.2 to about 3 wt %.

Abstract: The present invention is directed to a multifunctional organo-silicone compound and the use of that compound in personal care and other applications. These compounds by virtue of their unique structure provide outstanding micro emulsions and provide outstanding skin feel.

Abstract: Doped polysilanes, inks containing the same, and methods for their preparation and use are disclosed. The doped polysilane generally has the formula H-[AaHb(DRx)m]q-[(AcHdR1e)n]p—H, where each instance of A is independently Si or Ge, and D is B, P, As or Sb. In preferred embodiments, R is H, -AfHf+1R2f, alkyl, aryl or substituted aryl, and R1 is independently H, halogen, aryl or substituted aryl. In one aspect, the method of making a doped poly(aryl)silane generally includes the steps of combining a doped silane of the formula AaHb+2(DRx)m (optionally further including a silane of the formula AcHd+2R1e) with a catalyst of the formula R4wR5yMXz (or an immobilized derivative thereof) to form a doped poly(aryl)silane, then removing the metal M. In another aspect, the method of making a doped polysilane includes the steps of halogenating a doped polyarylsilane, and reducing the doped halopolysilane with a metal hydride to form the doped polysilane.

Abstract: A silicone resin composition for die bonding is provided. The composition includes (A) a straight-chain organopolysiloxane having silicon-bonded alkenyl groups, and with a viscosity of no more than 1,000 mPa·s, (B) a three dimensional network-type organopolysiloxane resin that is either wax-like or solid at 23° C., (C) an organohydrogenpolysiloxane having SiH groups, and (D) a platinum-group metal-based catalyst. The composition produces a cured product with a high hardness, and good heat resistance, transparency, and light transmittance in the low wavelength region.

Abstract: A fixing material includes a silane compound polymer as the main component, the silane compound polymer being produced by condensing a silane compound mixture that includes at least one silane compound (1) shown by the following formula (1): R1Si(OR2)p(X1)3-p (wherein R1 represents a group including an ester structure or a cyanoalkyl group, R2 represents an alkyl group having 1 to 6 carbon atoms or the like, X1 represents a halogen atom, and p is an integer from 0 to 3), and at least one silane compound (2) shown by the following formula (2): Si(OR3)q(X2)4-q (wherein R3 represents an alkyl group having 1 to 6 carbon atoms, X2 represents a halogen atom, and q is an integer from 0 to 4). A sealed optical device includes an optical device that is sealed with a cured product of the fixing material. The fixing material produces a cured product that exhibits high hardness, excellent transparency and heat resistance, and rarely undergoes coloration even when subjected to high-energy light or heat for a long time.

Abstract: A method of manufacturing a purified product of a liquid medium-chain alkyl-modified polydimethylsiloxane that is free of a specific (unpleasant) odor and is practically odorless, the method comprising the steps of: [A] synthesizing a liquid medium-chain alkyl-modified polydimethylsiloxane by carrying out a hydrosilylation reaction between a hydrosilyl-containing polydimethylsiloxane and an ?-olefin with 4 to 18 carbon atoms; and [B] subjecting a crude product of the liquid medium-chain alkyl-modified polydimethylsiloxane obtained in preceding step [A] to an odor-removing treatment by conducting a hydrogenation reaction which is carried out in the presence of a hydrogenation catalyst.

Abstract: Methods are disclosed of making linear and cross-linked, HMW (high molecular weight) polysilanes and polygermanes, polyperhydrosilanes and polyperhydrogermanes, functional liquids containing the same, and methods of using the liquids in a range of desirable applications. The silane and germane polymers are generally composed of chains of Si and/or Ge substituted with R? substituents, where each instance of R? is, for example, independently hydrogen, halogen, alkenyl, alkynyl, hydrocarbyl, aromatic hydrocarbyl, heterocyclic aromatic hydrocarbyl, SiR?3, GeR?3, PR?2, OR?, NR?2, or SR?; where each instance of R? is independently hydrogen or hydrocarbyl. The cross-linked polymers can be synthesized by dehalogenative coupling or dehydrocoupling. The linear polymers can be synthesized by ring-opening polymerization. The polymers can be further modified by halogenation and/or reaction with the source of hydride to furnish perhydrosilane and perhydrogermane polymers, which are used in liquid ink formulations.

Abstract: Curable polyorganosiloxanes are provided that cure in the absence of a hydrosilylation catalyst. The cured polyorganosiloxanes have increased stability and can be used as encapsulation resin is at a temperature far lower than 300° C., have excellent light transmission properties (colorless transparency. in a wavelength region of from ultraviolet light to visible light, light resistance, heat resistance, resistance to moist heat and UV resistance, and do not generate cracks and peeling even in use over a long period of time.