Abstract: A barium carbonate powder having a specific surface area of at least about 20 m2/g is mixed with a titanium oxide powder to form a powder mixture. The titanium oxide powder has such a specific surface area that the specific surface area ratio of the titanium oxide powder to the barium carbonate powder is at least about 1. The powder mixture is calcined and thus results in a fine barium titanate powder having a high content of tetragonal crystals and a small range of compositional variation.

Abstract: In a coated article comprising an undercoat and an overcoat on a substrate, the undercoat comprising a compound having a hydrolyzable group-bearing silyl group represented by SiX3−a wherein X is a hydrolyzable group and “a” is equal to 0, 1 or 2; and the overcoat is based on a composition comprising a silicone resin-containing emulsion resulting from emulsion polymerization of a mixed solution containing (A-1) a silanol group-bearing silicone resin comprising 30-100 mol % of T units and based on the T units, 30-80 mol % of T-2 units, and having a Mn of at least 500, and (A-2) a radical-polymerizable vinyl monomer. Due to a firm bond between the overcoat and the undercoat, the coated article exhibits a weather and water resistance sufficient to withstand long-term outdoor exposure.

Abstract: A piezoelectric ceramic composition capable of obtaining a piezoelectric member that can provide a sufficient sintering density even by firing at a low temperature besides only allowing small amount of Pb to be evaporated by firing to reduce deterioration of electrical characteristics, wherein the piezoelectric member comprises a perovskite structure oxide of the piezoelectric ceramic composition containing Pb, Ti, Zr, Ma (Ma represents at least one of Cr, Mn, Fe and Co) and Md (Md represents at least one of Nb, Sb, Ta and W), and wherein a represents the total content (in mole) of Ma, and b, c, d and e (in mole) represent the contents of Sb, Nb, Ta and W, respectively, and 0.50<a/(b+c+d+2e).

Abstract: In a coated article comprising an undercoat and an overcoat on a substrate, the undercoat comprising a compound having a hydrolyzable group-bearing silyl group represented by SiX3−a wherein X is a hydrolyzable group and “a” is equal to 0, 1 or 2; and the overcoat is based on a composition comprising a silicone resin-containing emulsion resulting from emulsion polymerization of a mixed solution containing (A-1) a silanol group-bearing silicone resin comprising 30-100 mol % of T units and based on the T units, 30-80 mol % of T-2 units, and having a Mn of at least 500, and (A-2) a radical-polymerizable vinyl monomer. Due to a firm bond between the overcoat and the undercoat, the coated article exhibits a weather and water resistance sufficient to withstand long-term outdoor exposure.

Abstract: A game system comprises a first storing device storing data for identifying strength and weakness of characters belonging to a player and an opponent; a first display control device for displaying a first game picture which expresses a state of a competitive game in which the player and the opponent compete by using the characters; an outcome determining device for determining an outcome of the competitive game based on the data stored in the first storing device; a second storing device storing data for identifying, with respect to a plurality of areas defined by dividing a predetermined field into a matrix, that each of the areas belongs to a territory of the player or the opponent; a second display control device for displaying a second game picture, on which the field is expressed in such a manner that the territory belonging to the player can be differentiated from the territory belonging to the opponent, based on the data stored in the second storing device; and a data updating device for changing the d

Abstract: A resin-coated carrier for an electrophotographic developer which comprises a carrier core coated with an acryl-modified silicone resin the silicone resin of which has a methyl group and other organic groups, the molar ratio of the methyl group to the total organic groups inclusive of the methyl group [methyl group/(methyl group+other organic groups)]being 64 mol % or higher and lower than 70 mol %, and the acrylic resin to silicone resin weight ratio ranging from 2/8 to 4/6.

Abstract: An improved intake structure of an internal combustion engine intended to attain a reduction of weight and improve engine performance. A mounting flange and a surge tank are integrally formed as a manifold constituent, and branch pipes are formed separately from the manifold constituent.

Abstract: A coating composition comprising a mixture of a methyl-rich silicone resin (S-1) and an acrylic resin (A-1) obtained by polymerizing at least one radical polymerizable vinyl monomer (M-1), or a reaction product obtained by reacting the silicone resin (S-1) with the radical polymerizable vinyl monomer (M-1) is suitable for coating carrier particles to form an electrophotographic carrier.

Abstract: An intake system-draining structure for an engine to remove water or other liquids that may collect on the surface of an intake manifold. The intake system-draining structure has several plate-like members that are disposed between branch pipes of an intake manifold positioned in the dust chamber of an air cleaner. A pair of communication members connects the branch pipes with the dust chamber. A water drain hole portion is formed through one of the plate-like members. The plate-like member with the water drain hole portion is positioned lower than the other plate-like members to efficiently drain water.

Abstract: A process for preparing an organic functional group-containing organopolysiloxane of the following average compositional formula (1)YmR.sup.1 nSi(OR.sup.2)pO.sub.(4-m-n-p)/2 (1)wherein Y represents an organic group having a functional group, R.sup.1 represents at least one monovalent substituted or unsubstituted hydrocarbon group, R.sup.2 represents a hydrogen atom, an alkenyl group and/or an alkenyl group, 0<m.ltoreq.1, 0.ltoreq.n<2, and 0.ltoreq.p.ltoreq.2 provided that 0<m+n+p.ltoreq.3. The organopolysiloxane is obtained by subjecting an organic functional group-containing alkoxysilane, with or without a functional group-free alkoxysilane, siloxane and/or silicone obtained from the group-free alkoxysiloxane and/or siloxane, to hydrolysis and polycondensation in the presence of a substantially neutral fluorine-containing compound. The functional group includes an epoxy group, a (meth)acryloxy group, a mercapto group and the like.

Abstract: There is provided a method of producing organopolysiloxanes by using organoalkoxysilanes and/or organoalkoxysiloxanes as starting materials and subjecting them to a hydrolytic condensation reaction, wherein at least 50% by weight of said starting materials is constituted of organoalkoxysilanes and/or organoalkoxysiloxanes represented by an average compositional formula (A):R.sup.1 .sub.a SiX .sub.b Y .sub.c O .sub.(4-a-b-c)/2 (A)wherein R.sup.1 groups are the same or different and each of them represents an unsubstituted or substituted alkyl, alkenyl or aryl group, X represents an alkoxy group containing 1 to 10 carbon atoms, Y represents an alkoxy group containing 2 to 10 carbon atoms which is different from the alkoxy group represented by X and has a hydrolysis rate lower than that of X, a is a real number from 0 to 2, b and c are each a real number from 0.1 to 3, provided that a+b+c.ltoreq.4.

Abstract: This invention offers the coating agents in order to manufacture electrophotography carrier particles with a superior endurance. Coating agents for the electrophotography carriers which are characterized by having the organopolysiloxane expressed by the general formula below:R.sub.a.sup.1 Si(OR.sup.2).sub.b (OR.sup.3).sub.c (OR.sup.4).sub.d O.sub.(4-a-b-c-d)/2wherein R.sup.1 is an organic group with 1 to 12 carbon atoms; R.sup.2 is --C.sub.m H.sub.2m+1 as herein m.gtoreq.3; R.sup.3 is --C.sub.n H.sub.2n+1 as herein n is either 1 or 2; R.sup.4 is in each case a hydrogen atom or group expressed by formulae (1) and (2) below; and subscripts a, b, c, and d are numbers which satisfy the following conditions of 0.5<a<2, 0<b.ltoreq.3, 0<c.ltoreq.3, 0<d.ltoreq.0.5 and 0.5<a+b+c+d.ltoreq.4. ##STR1## R.sup.5 in the above formulae (1) and (2) is an organic group with 1 to 6 carbon atoms and x in the formula (1) satisfies 1.ltoreq.x.ltoreq.2.

Abstract: A curable resin composition containing (a) a homo- or copolymer of an organohydrogenpolysiloxane macromonomer, (b) an alkenyl group-containing polymer, and (c) a hydrosilylation catalyst is disclosed. The organohydrogenpolysiloxane macromonomer may be incorporated into a single polymer entity together with an alkenyl group-containing monomer unit to produce a self-crosslinkable copolymer.

Abstract: Coating agents for electrophotography carriers are disclosed which are resistant to wear, peel-off, cracks, and prevent the occurrence of a spent phenomenon, and which possess a durability for a long period of use and a superior stability in the carrier charge characteristics. The coating provides long lifetime electrophotography carriers which possess reduced temperature dependency and improved stability in the carrier charge characteristics.The coating agents for the electrophotography carrier are characterized by having an organopolysiloxane expressed by the formula below as a main component:R.sub.a.sup.f R.sub.b.sup.1 Si(OR.sup.2).sub.c O.sub.(4-(a+b+c))/2IwhereinR.sup.f is C.sub.p F.sub.2p+1 Q;p is 1-12;Q is a bivalent organic group with 2-12 carbon atoms;R.sup.1 is alkyl with 1-12 carbon atoms or phenyl;R.sup.2 is H or alkyl with 1-6 carbon atoms; anda, b and c are numbers satisfying the following conditions:0<a.ltoreq.1, 0.ltoreq.b<2, 0.ltoreq.c.ltoreq.3, and 0.ltoreq.a+b+c.ltoreq.4.

Abstract: A coating composition for carriers which are adapted for use in electrophotography is described. The composition comprises an organopolysiloxane of the following average unit formula (1)R.sup.1.sub.a Si(OR.sup.2).sub.b O.sub.[4-(a+b)]/2 (1)wherein R.sup.1 represents an alkyl group having from 1 to 10 carbon atoms or a phenyl group, R.sup.2 represents a hydrogen atom or an alkyl, alkenyl or alkoxyalkyl group, each having from 1 to 10 carbon atoms for the alkyl and alkenyl and from 2 to 10 carbon atoms for the alkoxyalkyl, a is a value of 0.8.ltoreq.a.ltoreq.1.8, b is a value of 0<b<3, an organosilane of the following general formula (2) serving as a crosslinking agent for the organopolysiloxane(CH.sub.3).sub.2 SiX.sub.2 (2)wherein each X represents an alkenoxy group or oxime having from 2 to 10 carbon atoms, and a curing catalyst for the organopolysiloxane. Carriers having core particles and a cured film of the composition formed on individual particles are also described.

Abstract: A curable resin composition comprises (A) a silicone resin having epoxy and phenyl groups and at least two hydrolyzable silyl groups and/or silanol groups in one molecule, (B) a vinyl polymer having a group or groups reactive with the epoxy group in the ingredient (A), and (C) a condensation catalyst for the silicone resin.

Abstract: A process for preparing a polyester-modified silicone resin comprises mixing an alkoxysilane and/or its hydrolyzate, i.e. an alkoxysiloxane, and a polyester resin having at least two hydroxyl groups in the molecule, and subjecting the mixture to hydrolysis and polycondensation reactions in the presence of an acid catalyst. This process is performed by a continuous one-stage reaction sequence including hydrolysis, polycondensation and modification and is simplified. A composition comprising the polyester-modified silicone resin is also described. The composition comprising organozinc compounds along with the modified silicone resin is significantly improved in heat resistance and color-difference.

Abstract: A blend of (A) an acrylic, polyester or epoxy resin having at least two alkenyl or alkynyl groups in a molecule, (B) an organic silicon compound having at least two hydrogen atoms each directly attached to a silicon atom in a molecule, and (C) a hydrosilylaion catalyst is blended with (D) an organic iron or aluminum compound to form a hydrosilylative composition. Component (D) scavenges a catalyst poison, permitting components (A) and (B) to undergo hydrosilylation reaction with the aid of catalyst (C).

Abstract: The present invention provides a coating agent for an electrophotographic carrier comprising as a major component a copolymer of at least one monomer selected from the organopolysiloxanes represented by the following general formulas 1, 2, and 3 with other polymerizable monomer: ##STR1## wherein the general formulas 1, 2, and 3, R.sup.1 is hydrogen atom or methyl group; R.sup.2 is C.sub.1 -C.sub.10 alkyl or phenyl group; R.sup.3 is R.sup.2 or CH.sub.2 .dbd.C(R.sup.1)COOC.sub.3 H.sub.6 ; n, p, and q are defined as n.gtoreq.3, p.gtoreq.0, q.gtoreq.3, and p<q; and r is an integer of 2-20.The coating agent for an electrophotographic carrier resists the formation of wear, peeling, cracks, and the like, which can also prevent the spent condition from occurring and thus, permits use over a long period of time; and it provides a long-life electrophotographic carrier in which the carrier charge characteristics exhibit low temperature dependency.

Abstract: Novel organopolysiloxanes containing both a (meth)acryl group and a carboxyl group in a molecule are well compatible with organic resins and useful as resin modifiers.