Abstract: To provide a medical device which is excellent in wettability and lubricity and is also scarcely broken since it is soft, by a medical device in which a layer made of an acidic polymer and a basic polymer is formed on at least a part of a surface of a low water content soft base material, the low water content soft base material containing, as a main component, a copolymer containing a monofunctional monomer component M having one polymerizable functional group and one silicone moiety per molecule.

Abstract: The present invention is directed to binder based on an alkoxy- and/or silanol-functional polysiloxane A), one or more dicarboxylic or polycarboxylic acids B), one or more di- or polyols C), one or more di- or polyisocyanates and one or more aminosilanes D1) or one or more isocyanatosilanes D2), the constituents A) to D1) or D2) being present condensed with one another in the binder.

Abstract: The invention provides compositions and methods relating to self-assembly of structures of various size and shape complexity. The composition include synthetic single-stranded polymers having a backbone and pre-determined linear arrangement of monomers.

Abstract: A resin composition for producing an insulating material includes (A) 40 to 50% by weight of a base resin formed with a polyolefin-based resin or a derivative thereof, (B) 40 to 50% by weight of a magnesium hydroxide flame retardant of which surface is treated with vinyl silane, (C) 1 to 2% by weight of an antioxidant in which a first antioxidant and a second antioxidant are mixed in a weight ratio of 1:1 to 3, (D) 0.5 to 2% by weight of a lubricant, (E) 2 to 3% by weight of organosilane, (F) 0.05 to 0.2% by weight of an initiator, and (G) 1 to 4% by weight of a catalyst.

Abstract: The present invention relates to macroinitiators comprising at least one hydrophobic segments in a molecule, wherein a molecular weight of the hydrophobic segment is 300 to 1800. The present invention further relates to block copolymers, wetting agent and polymeric materials having the block copolymers of the present invention associated with, which is suitable for medical devices, particularly for ophthalmic devices, including contact lenses, ophthalmic lenses, punctal plugs and artificial corneas.

Abstract: Silicone polyether microemulsions are disclosed containing i) at least 20% by weight of a water immiscible dispersed phase comprising certain polydialkylsiloxane-polyoxyalkylene copolymers having 0.1 to 10 wt % ethylene oxide (C2H4O) groups, optionally a water immiscible silicone or hydrocarbon fluid, and ii) at least 5% by weight of an emulsifier. The silicone polyether microemulsions are optically transparent and have an average particle size of less than 100 nanometers. They may be used in a variety of personal care product formulations. In particular, the silicone polyether microemulsions may be used to prepare “clear” personal care products.

Abstract: The present invention relates to an ionic interpenetrating polymer network comprising at least one elastomer and an ionic supramolecular structure comprising the reaction product of at least two chemical compounds wherein each of said compounds has at least two functional groups and wherein said compounds are able to undergo Lewis acid-base reactions. The interpenetrating polymer network may be used as dielectric electroactive polymers (DEAPs) having a high dielectric permittivity.

Abstract: The present invention discloses a hybrid organic silicon thermoplastic elastomer and a preparation method thereof. The copolymer, namely the elastomer, has a structural formula as shown in formula I. In the preparation method, the preparation proceeds in a solution or main body polymerization system through organopolysiloxane with two functionalized ends, a compound with a structural formula of OCN—Y—NCO, a branched compound with a structural formula of and a compound with a structural formula of NH2—Z—NH2, which can be added or not. The softening temperature of the copolymer is in a range of 40° C.˜190° C., and the present invention has high processing mobility.

Abstract: The present invention relates to antifouling coatings capable of being switched by using heat or ultraviolet light. Prior to switching, the coating includes an onium cation component having antimicrobial and antibacterial properties. Upon switching, the coating is converted to a conjugated polymer state, and the cationic component is released with any adsorbed biofilm layer. Thus, the coatings herein have switchable and releasable properties. Methods of making and using such coatings are also described.

Abstract: Consumer product compositions comprising organopolysiloxane conditioning polymers. Also disclosed are processes for making such compositions and to methods of using such compositions to provide a conditioning benefit.

Abstract: A positive-type photosensitive siloxane composition which comprises (I) two or more polysiloxanes that differ in the rate of dissolution in aqueous tetramethylammonium hydroxide (TMAH) solutions, (II) a polysiloxane that gives a film which after prebaking has a rate of dissolution in 2.38 wt-% aqueous TMAH solution of 50-1,000 ?/sec and that has a group soluble in aqueous TMAH solution, other than silanol, (III) a diazonaphthoquinone derivative, and (IV) a solvent.

Abstract: A pre-dispersion composition comprising (i) a silsesquioxane; (ii) a dispersing agent; and (iii) a curable resin.

Abstract: A silicone pressure-sensitive adhesive composition is provided comprising (A) an organopolysiloxane having at least two alkenyl-containing organic groups, (B) a polyorganosiloxane comprising R23SiO1/2 and SiO4/2 units in a molar ratio of 0.5 to 1.0, (C) a polyorganohydrogensiloxane containing at least three Si—H groups, (D) a platinum group metal base catalyst, and (E) an adhesion promoting compound containing at least one recurring unit of formula (3) and at least one Si—H group.

Abstract: The silicone composition for sealing a semiconductor, comprises: (A) 100 parts of a polyorganosiloxane having one or more alkenyl groups, obtained by reacting (a1) 60 to 99 parts of an organosiloxane containing at least a trifunctional siloxane unit not taking part in a hydrosilylation reaction, with (a2) 40 to 1 parts of an organosiloxane containing a bifunctional siloxane unit having an alkenyl group and/or a monofunctional siloxane unit having an alkenyl group; (B) an amount of a polyorganohydrogensiloxane having two or more hydrogen atoms having a viscosity at 25° C. of 1 to 1000 mPa·s so that an amount of the hydrogen atoms is 0.5 to 3.0 mol per mol of the alkenyl groups; and (C) a platinum-based catalysts, wherein a decrease in storage modulus of a cured product thereof from 25° C. to 50° C. is 40% or more.

Abstract: The present invention aims to reduce excess scattering in light emitting arrangements. A composition comprising a transparent matrix comprising an anionic organic moiety, and metal cations dispersed in the matrix is disclosed. The anionic organic moiety and the metal cations form an organometallic complex, and wherein the metal cations are capable of forming transparent nano-crystals upon contact with an agent comprising at least one element selected from the group consisting of sulfur and selenium. Also an optical composition comprising a transparent matrix comprising an organic moiety residue, and unmodified nanocrystals is disclosed. Further, a method of preparing an optical composition comprising the steps of: providing a transparent matrix comprising an anionic organic moiety; dispersing metal cations into the matrix; and contacting the organometallic complex with an agent in order to in situ convert at least part of the metal cations into transparent nanocrystals.

Abstract: The invention relates to rubber compositions containing at least one diene-based elastomer containing dual functionalized styrene/butadiene elastomers and filler reinforcement for the elastomer(s) comprised of pre-hydrophobated precipitated silica together with processing aid for the pre-treated precipitated silica comprised of zinc salt of fatty acids. The invention further relates to a pneumatic tire with tread comprised of such.

Abstract: A radical polymerizable composition includes a siloxane compound represented by a formula (HO)2(R)Si.O[—Si(R)(OH).O-]n-Si(R)(OH)2 in which R represents a methacryloyl group; and n represents 0 or 1; and a monomer having a viscosity lower than that of the siloxane compound. The composition is preferably cured with UV light from an LED.

Abstract: There is set forth herein a silicon-based patch formulation comprising about 25 to 66 percent by volume of a solvent; about 4 to 10 percent by volume of a silicon-comprising binding material; and about 30 to 65 percent by volume of a patching material, the patching material comprising particles having one or more non-actinide Group IIIA elements, wherein a molar ratio of the one or more non-actinide Group IIIA elements to silicon within the patch formulation is about 0.95 to 1.25.

Abstract: The invention relates to curable polyorganosiloxane compositions for the use as an encapsulant for a solar cell module, in particular, for the encapsulation of photovoltaic modules, cured polyorganosiloxane composition made therefrom and photovoltaic modules comprising the same as encapsulant.

Abstract: The present invention provides a dense silicic film and a producing method thereof. This method comprises coating a composition for coating film, which comprises a polymer having a silazane bond on a substrate, on a substrate, irradiating with light having a maximal peak in the range of 160-179 nm wavelength, and then irradiating with light having 10-70 nm wavelength longer maximal peak wavelength than the light used in the previous irradiation.