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 curable silicone composition comprising at least the following components: (A) an epoxy-containing organopolysiloxane; (B) a curing agent for epoxy resin; and (C) an epoxy compound represented by the specific general formula; is characterized by excellent handleability and reduced oil-bleeding, and, when cured, forms a cured body of excellent flexibility and adhesion.

Abstract: A method of manufacturing a layered silicone composite material comprising the steps of: applying a second addition-curable organopolysiloxane composition that contains a second adhesion promoter onto a first silicone layer that is formed by curing a first addition-curable organopolysiloxane composition containing a first adhesion promoter and where the first silicone layer has a hardness of less than JIS A 50; and forming a second silicone layer that has hardness of JIS A 50 or more by curing said second addition-curable organopolysiloxane composition.

Abstract: A silicon-containing polymer represented by the following average unit formula: (O2/2SiR1-R2-C6H4-R2-SiR1O2/2)x [R3 SiO(4-a)/2]y(R4O1/2)z (wherein R1 designates identical or different, substituted or unsubstituted monovalent hydrocarbon groups; R2 designates identical or different, substituted or unsubstituted alkylene groups; R3 designates substituted or unsubstituted monovalent hydrocarbon groups; R4 designates alkyl groups or hydrogen atoms; ‘a’ is a positive number that satisfies the following condition: 0=a=3; and ‘x’, ‘y’, and ‘z’ are positive numbers that satisfy the following conditions: 0<x<0.1; 0<y<1; 0=z<0.1; and (x+y+z)=1); and a curable polymer composition comprising: (A) the aforementioned silicon-containing polymer; (B) an organosilicon compound that contains in one molecule at least two silicon-bonded hydrogen atoms; and (C) a hydrosilylation catalyst.

Abstract: A curable organopolysiloxane composition comprising: (A) a solvent-soluble organopolysiloxane obtained by conducting a hydrosilylation reaction between (i) an organopolysiloxane represented by the following average structural formula: RaSiO(4-a)/2 (wherein R1 represents a substituted or non-substituted monovalent hydrocarbon group, the content of alkenyl groups in all groups represented by R1 is within the range of 0.

Abstract: A liquid transporting apparatus which transports a liquid includes a channel unit having a surface which is electroconductive and a liquid channel which includes a pressure chamber; a piezoelectric actuator applying a pressure to the liquid in the pressure chamber and having a piezoelectric layer arranged to face the surface of the channel unit and to cover the pressure chamber, electrodes which are arranged in the piezoelectric layer to face the pressure chamber, and a first isolating film arranged between the piezoelectric layer and the surface of the channel unit to cover the pressure chamber; and a deterioration detecting mechanism detecting a deterioration of the first isolating film and having a second isolating film which is electroconductive and stacked on a surface, of the first isolating film, on a side of the piezoelectric layer, and which is insulated from both the electrodes and the channel unit.

Abstract: A curable organopolysiloxane composition comprising: (A) an novel organopolysiloxane represented by the following average structural formula: R1aSiO(4-a)2 {wherein R1 represents a substituted or non-substituted monovalent hydrocarbon group, an alkoxy group, a hydroxyl group, or an organopolysiloxane residue of the following general formula: —X—(SiR2O)mSiR23 (wherein R2 are the same or different, substituted or unsubstituted monovalent hydrocarbon groups; X represents oxygen atoms or a bivalent hydrocarbon group; and ‘m’ is an integer equal to or greater than 1); however, at least one R1 in one molecule is the aforementioned organopolysiloxane residue, at least one R1 is a monovalent hydrocarbon group having aliphatic carbon-carbon double bonds, and ‘a’ is a positive number that satisfies the following condition: 0<a<2)}; (B) an organic silicon compound having in one molecule at least two silicon-bonded hydrogen atoms; and (C) a hydrosilylation catalyst; is capable of forming a cured product of high flex

Abstract: A method of manufacturing a layered silicone composite material comprising the steps of: applying a second addition-curable organopolysiloxane composition that contains a second adhesion promoter onto a first silicone layer that is formed by curing a first addition-curable organopolysiloxane composition containing a first adhesion promoter and where the first silicone layer has a hardness of less than JIS A 50; and forming a second silicone layer that has hardness of JIS A 50 or more by curing said second addition-curable organopolysiloxane composition.

Abstract: A droplet ejecting apparatus, including: a head having a cavity unit with pressure chambers and a piezoelectric actuator; and a voltage application device, the actuator including: first and second active portions; a first potential electrode; a second potential electrode including a second trunk portion; and individual electrodes each having a connection portion, wherein the connection portion is disposed to overlap the second trunk portion as seen in a superposition direction of the cavity unit and the actuator, wherein the individual electrodes are arranged in rows to correspond to rows of the pressure chambers, and all connecting portions belonging to any one row are disposed on the same side in a direction of arrangement of the rows, and wherein the connecting portions of the individual electrodes that belong to one and the other of any adjacent two rows are disposed on mutually opposite sides with respect to the corresponding pressure chambers.

Abstract: In a liquid droplet jetting mode of jetting liquid droplets, a controller controls a piezoelectric actuator to perform a liquid droplet jetting operation in which volume of a pressure chamber is decreased to a decreased volume smaller than a predetermined volume, and then the volume of the pressure chamber is increased to an increased volume greater than the predetermined volume, and the volume of the pressure chamber is again decreased to the decreased volume. On the other hand, in a warm-up mode of heating the liquid in the pressure chamber, the controller controls the piezoelectric actuator to perform at least one of a first warm-up operation in which the volume of the pressure chamber is changed repeatedly between the predetermined volume and the increased volume, and a second warm-up operation in which the volume of the pressure chamber is changed repeatedly between the predetermined volume and the decreased volume.

Abstract: A curable organopolysiloxane composition comprising an organopolysiloxane containing alkenyl groups and phenyl groups, an organohydrogenpolysiloxane, a copolymer of a vinyl monomer and a vinyl monomer with hydrosilyl groups, and a platinum catalyst; a curing process that consists of two or more stages of thermal curing; an optical semiconductor device that has a light-transmitting portion made from a cured body of the aforementioned composition; and an adhesion promoter that consists of a copolymer of a vinyl monomer and a vinyl monomer with hydrosilyl groups.

Abstract: A droplet ejecting apparatus, including: a droplet ejecting head including a cavity unit with pressure chambers and a piezoelectric actuator; and a voltage application device, the actuator including: first active portions; second active portions; a first potential electrode which is constantly given a first potential by the voltage application device; a second potential electrode which includes second branch portions respectively corresponding to the second active portions and a second trunk portion that connects the second branch portions and which is constantly given a second potential different from the first potential by the voltage application device; and individual electrodes to each of which the first and second potentials are selectively given at a connection portion thereof by the voltage application device, wherein the connection portion is disposed so as to overlap the second trunk portion as seen in a superposition direction in which the cavity unit and the actuator are superposed.

Abstract: A liquid transporting apparatus includes a channel unit in which liquid transporting channel transporting the liquid is formed, the liquid transporting channel including a pressure chamber; a piezoelectric actuator which is connected to the channel unit, and which applies a pressure to the liquid in the pressure chamber, the piezoelectric actuator having: a piezoelectric layer; a first electrode arranged on a first surface of the piezoelectric layer to face the pressure chamber; a second electrode which is arranged, to face the first electrode, on a second surface of the piezoelectric layer different from the first surface; third electrodes arranged on the piezoelectric layer to sandwich the first electrode in a plan view; and fourth electrodes which are arranged, to face the third electrode, on the piezoelectric layer; a voltage applying mechanism which applies a voltage to the piezoelectric actuator; and a controller which controls the voltage applying mechanism.

Abstract: A curable silicone composition containing an organopolysiloxane that contains in one molecule at least one epoxy-containing organic group, has a polystyrene-referenced weight-average molecular weight at least 500, and is expressed by the following general unit formula: (RSiO3/2)x[R1aSiO(4-a)/2]y (where R represents a cycloalkyl group, and R1 represents hydrogen atom or a univalent organic group, except for an aromatic group and a cycloalkyl group, at least one R1 in one molecule being an epoxy-containing univalent organic group, and where the following condition is observed: 0<a?3; x>0; y>0; and x+y=1).

Abstract: A curable silicone composition comprising: (A) an organopolysiloxane that has a branched molecular structure and contains in one molecule at least two univalent hydrocarbon groups with phenolic hydroxyl groups therein; (B) a linear-chain organopolysiloxane having at least two univalent hydroxyl groups with epoxy groups that are free of aromatic rings; and (C) a curing accelerator.

Abstract: A curable organopolysiloxane composition comprising at least the following components: (A) a linear diorganopolysiloxane with a mass average molecular weight of at least 3,000, (B) a branched organopolysiloxane, (C) an organopolysiloxane having, on average, at least two silicon-bonded aryl groups and, on average, at least two silicon-bonded hydrogen atoms in one molecule, and (D) a hydrosilylation reaction catalyst; has excellent curability and, when cured, forms a flexible cured product of high refractive index, optical transmissivity, excellent adherence to various substrates, high hardness and slight surface tack.

Abstract: A curable organopolysiloxane composition comprising an organopolysiloxane containing alkenyl groups and phenyl groups, an organohydrogenpolysiloxane, a copolymer of a vinyl monomer and a vinyl monomer with hydrosilyl groups, and a platinum catalyst; a curing process that consists of two or more stages of thermal curing; an optical semiconductor device that has a light-transmitting portion made from a cured body of the aforementioned composition; and an adhesion promoter that consists of a copolymer of a vinyl monomer and a vinyl monomer with hydrosilyl groups.

Abstract: A curable liquid epoxy resin composition comprising: (I) a liquid epoxy resin; (II) an acid anhydride; (III) a diorganosiloxane represented by the following general formula: A-R2—(R12SiO)nR12Si—R2-A {where R1 designates identical or different, substituted or unsubstituted univalent hydrocarbon groups, which are free of aliphatic unsaturated bonds; R2 designates bivalent organic groups; “A” represents a siloxane residue radical expressed by the following average unit formula: (XR12SiO1/2)a(SiO4/2)b (where R1 is the same as defined above, X designates a single bond, a hydrogen atom, a group designated by R1, an epoxy-containing alkyl group, or an alkoxysilylalkyl group; however, in one molecule at least one X should be represented by a single bond, and at least two groups designated by X should be represented by epoxy-containing alkyl groups; “a” is a positive number; “b” is a positive number; and a/b is a number ranging from 0.

Abstract: A piezoelectric actuator unit includes a piezoelectric layer, a first electrode and a second electrode which are arranged to be sandwiching the piezoelectric layer, and which form an active portion of the piezoelectric layer by sandwiching the piezoelectric layer, a capacitor which is connected in series to the active portion, and a voltage applying mechanism which applies a first voltage to the capacitor, and a second voltage between the first electrode and the second electrode to cause a piezoelectric deformation in the active portion of the piezoelectric layer.

Abstract: A composition includes: (I) an alkenyl functional, phenyl-containing polyorganosiloxane, an Si—H functional phenyl-containing polyorganosiloxane, or a combination thereof; (II) a hydrogendiorganosiloxy terminated oligodiphenylsiloxane having specific molecular weight, an alkenyl-functional, diorganosiloxy-terminated oligodiphenylsiloxane having specific molecular weight, or a combination thereof; and (III) a hydrosilylation catalyst. A light emitting device is made by applying the composition onto a light source followed by curing. The composition provides a cured material with mechanical properties suited for use as an encapsulant for a light emitting device.