A polysiloxazane compound including a repeating unit of the following general formula (1), and having a number average molecular weight of 500 to 100,000 as measured by gel permeation chromatography versus polystyrene standards, ##STR00001##
wherein R.sup.1 and R.sup.2 each independently represent a substituted or unsubstituted C.sub.1-C.sub.50 monovalent hydrocarbon group optionally containing a hetero atom, Xs each independently represent a methyl group, an oxygen atom, NH—SiX.sub.2, or (NH).sub.(3-r)/2—SiR.sup.1R.sup.2.sub.r (R.sup.1 and R.sup.2 have the same meaning as provided above), or Xs are joined to one another to represent an oxygen atom, n is an integer of 0 to 8, when the number of NH—SiX.sub.2 is denoted by p, p satisfies 0≤p/(2n+4)≤0.5, r is an integer of 0, 1, or 2, and a and b are numbers satisfying 0<a≤1, 0≤b<1, and a+b=1.

An object of the present invention is to provide a curable coating agent composition excellent in adhesion to a substrate such as a (meth)acrylic resin, appearance of a thick coating film, and friction resistance of a cured coating film. A curable coating agent composition including a silicone oligomer (A) having a hydrolyzable functional group, a condensation reaction catalyst (B), a silane compound (C), and an organic solvent (D), in which the component (C) contains at least one or more of a silane compound (c1) having a primary amino group and a hydrolyzable functional group and at least one or more of a silane compound (c2) having a secondary amino group and a hydrolyzable functional group.

A non-curable thermally conductive material contains: (a) a matrix material containing: (i) 90 to 98 wt % of a non-functional non-crosslinked organosiloxane fluid having a dynamic viscosity of 50 to 350 centiStokes; and (ii) 2 to less than 10 wt % of a crosslinked hydrosilylation reaction product of an alkenyl terminated polydiorganosiloxane having a degree of polymerization greater than 300 and an organohydrogensiloxane crosslinker with 2 or more SiH groups per molecule where the molar ratio of SiH groups to alkenyl groups is 0.5 to 2.0; (b) greater than 80 wt % to less than 95 wt % thermally conductive filler dispersed throughout the matrix material; and (c) treating agents selected from alkyltrialkoxy silanes where the alkyl contains one to 14 carbon atoms and monotrialkoxy terminated diorganopolysiloxanes having a degree of polymerization of 20 to 110 and the alkoxy groups each contain one to 12 carbon atoms dispersed in the matrix material.

A thermally conductive composition contains a base polymer, an adhesive polymer, and thermally conductive particles. A thermal conductivity of the thermally conductive composition is 0.3 W/m.Math.K or more. The thermally conductive particles include inorganic particles (a) with a specific surface area of 1 m.sup.2/g or less. The inorganic particles (a) are coated with the adhesive polymer. The production method includes a first mixing process of mixing the adhesive polymer and the inorganic particles (a) with a specific surface area of 1 m.sup.2/g or less so that the inorganic particles (a) are coated with the adhesive polymer, a second mixing process of adding and mixing the base polymer; and a curing process. Thus, the present invention provides a thermally conductive composition that has high thermal conductive properties, a high compression repulsive force, and less interfacial debonding resulting from stress, and a method for producing the thermally conductive composition.

A soil wetting agent is shown and described herein. The soil wetting agent comprises (a) a siloxane alkoxylate; (b) a polymeric dispersant; (c) a pH adjuster; (d) a sugar; and (e) a carrier resin. The soil wetting agent can provide improved distribution of water and/or bioactive materials or nutrients to an area of soil, which can help to improve irrigation of the area as well as improved properties of the crops grown in the area in terms of germination, crop yield, crop size, etc.

The present invention relates to an intermediate for preparing porous silicon oxycarbide, a method of preparing the same, and a lithium secondary battery including porous silicon oxycarbide prepared from the same as a negative electrode active material. According to the present invention, since an intermediate prepared by adding a polyhedral oligomeric silsesquioxane (POSS) to a reaction mixture for preparing silicon oxycarbide, which is composed of a polysiloxane polymer and an aromatic compound, is pyrolyzed to prepare porous silicon oxycarbide (SiOC), although the content of a free carbon region is lower compared to conventional silicon oxycarbide, the cage structure of the POSS is maintained in the pyrolysis to form many pores uniformly distributed in the SiOC matrix, and thus rapid diffusion of electrolyte ions is possible, and because the contents of SiO.sub.3C and SiO.sub.2C.sub.2 in the SiOC matrix are increased, a reversible capacity in the Si—O—C phase can be enhanced.

A coat-forming composition including (A) to (C) below, and containing 100 to 2000 parts by mass of (C) below relative to 100 parts by mass of (A) below: (A) a mixture of coating film-forming components containing (A-1) and (A-2) below at a mass ratio of (A-1):(A-2)=1:1.1 to 1:4.9, (A-1) a hydrolyzable group-containing silicone oligomer having a kinematic viscosity at 25° C. of 10 mm2s-1 or less, and (A-2) a reactive silicone oil having, at one terminal, a functional group from the group of a mercapto group, an amino group, and a monocarbinol group, provided that the reactive silicone oil having a monocarbinol group at one terminal has a functional group equivalent of 4500 g/mol or less; (B) a hydrolysis catalyst; and (C) an organic solvent. The coat-forming composition can form a coating film having both water sliding ability and durability (water sliding ability after abrasion).

The present disclosure provides a fine particle containing silicon, wherein the fine particle has a number-average particle diameter of a primary particle of 0.05 μm or more and 0.20 μm or less, wherein the fine particle contains a silicon atom at a ratio of 20% or more with respect to all elements in measurement by X-ray fluorescence.

An aerogel and drying method, the aerogel having a larger size, good productivity, and high transparency. The aerogel has a silsesquioxane structure and exhibits two exothermic peaks observed in a temperature range of 300 to 600° C. as measured by TG-DTA (thermogravimetry-differential thermal analysis) under an inert gas atmosphere containing 80% by volume of an inert gas and 20% by volume of oxygen. A method for producing aerogel includes a drying step including a first step in which an aerogel which has undergone condensation of a hydrolysate is placed in a liquid phase system having a first liquid phase and a second liquid phase; a second step in which a first solvent constituting the first liquid phase is evaporated from the first liquid phase at a temperature greater than room temperature; and a third step in which heating is still continued after the first liquid phase is evaporated off.

A photochromic compound of the present invention comprises at least two monovalent photochromic basic structure groups PC including a T-type photochromic moiety, the photochromic basic structure groups being bonded to an organic group having a non-SO aromatic ring containing neither a sulfur atom nor an oxygen atom.