Abstract: There is disclosed a simulator having timing error detecting from input and output signal level changes. Different timing error verifications are carried out for respective elements. In similar constructions, different test rule error verifications are also carried out for the respective elements as a function of the contents of a test rule check value definition file.

Abstract: A logic function block having an output signal potential sensing function is substituted for each of logic function blocks of which fault conditions cannot be detected on the basis of predetermined input/output signal combinations for determining whether or not the semiconductor integrated circuit device operates correctly. Probe lines and sense lines are connected only to the logic function blocks having output signal potential sensing function. The probe lines are driven from a probe line driver, and a sense line receiver reads out signals on the sense lines. Thus, without reducing fault detecting efficiency, the areas of an active region and a wiring region required for forming a fault detecting arrangement can be reduced.

Abstract: A silicone rubber composition comprising (A) an organopolysiloxane, (B) an organic peroxide and (C) carbon black cures under anaerobic conditions into silicone rubber having improved physical properties. A composition further comprising (D) an organopolysiloxane copolymer consisting essentially of M and Q units in a molar M/Q ratio of 6/10 to 9/10 forms an anaerobic adhesive composition which is a useful sealant.

Abstract: A UV and moisture-curable organopolysiloxane composition comprising (i) an organopolysiloxane terminated with a radical of formula (1): ##STR1## wherein R.sup.1 is a hydrogen atom or monovalent hydrocarbon radical, each of R.sup.2 and R.sup.3 is a divalent hydrocarbon radical which may contain a NH bond or ether bond, each of R.sup.4 and R.sup.5 is a monovalent hydrocarbon radical which may contain an ether bond, and a is equal to 0 or 1, (ii) a photo-polymerization initiator, and (iii) a curing catalyst. The composition readily cures either upon exposure to UV radiation or upon contact with moisture and from the surface to the deep interior within a short time, yielding cured products having satisfactory physical properties.

Abstract: A impression composition comprising:(A) a polyether polymer having at least two alkenyl groups in its molecule,(B) a polyorganohydrogensiloxane having at least three silicon-bonded hydrogen atoms in its molecule,(C) a platinum catalyst,(D) an inorganic filler, and(E) an antioxidant.This composition of has hydrophilic nature and a small cure shrinkage; hence it enables precise impression in a wet environment like in a mouth.

Abstract: A novel organopolysiloxane compound having, in a molecule, at least one silyl-substituted ethyl group of the general formula ##STR1## in which R.sup.1 is a hydrogen atom or a methyl group, R is a monovalent hydrocarbon group and the subscripts a is 2 or and b is 1, 2 or 3, or a linear organopolysiloxane having, at each molecular chain end, at least one of such a group, can be prepared by first reacting a vinyl-containing organopolysiloxane with a hydrogen chlorosilane compound to effect the hydrosilation reaction between the silicon-bonded vinyl groups and the silicon-bonded hydrogen atoms and then the silicon-bonded chlorine atoms are subjected to a dehydrochlorination reaction with a silanol compound of the general formula ##STR2## A composition comprising the organopolysiloxane and a photopolymerization initiator is highly sensitive to light and readily cured into a rubbery elastomer by irradiation with ultraviolet light.

Abstract: Silicone rubber compositions which comprise (A) an organopolysiloxane, which possesses at least one triorganosilyl-amine group expressed by the following equation (1) at its molecular end and a degree of polymerization which is at least 2000, and the silicone rubber compositions which further comprise (B) a fine powdered silica whose specific surface area is at least 50 m.sup.2 /g, ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are each a substituted or unsubstituted monovalent hydrocarbon group, each of which can be the same or different. The silicone rubber compositions are a non-fluidity type; therefore, they offer superior workability and formability. Further, silicone rubber obtained by the curing of the said compositions possess superior physical properties, extremely low hardness, flexibility, and good rubber elasticity, thus they are useful as raw materials of various products.

Abstract: The present invention provides a heat-curable silicone rubber composition to be cured by hydrosilation reactions and having outstanding physical properties, especially a high tear strength, said composition comprising(A) a polydiorganosiloxane having at least two unsaturated aliphatic hydrocarbon groups and represented by the general formula (1):R.sub.a.sup.1 SiO.sub.(4-a)/2 ( 1)wherein R.sup.1 represents a substituted or unsubstituted monovalent hydrocarbon group containing 0.01 to 15 mole % of an unsaturated aliphatic hydrocarbon group, a is a positive number of from 1.95 to 2.05.(B) a polyorganohydrogensiloxane having at least three hydrogen atoms directly bonded to silicon atom in a molecule,(C) silica filler having a specific surface area of at least 50 m.sup.2 /g, and(D) an addition reaction catalyst,(E) water, and preferably(F) an organosilane represented by the general formula:R.sub.m.sup.2 Si(OR).sub.4-mwherein R.sup.

Abstract: A developing apparatus for developing a latent image on a surface of a photosensitive body by forming a toner cloud in a developing region through electrode wire, in which movably supporting units for supporting electrode supporting unit movably between operative positions and inoperative positions are provided so that the electrode wire supported by the electrode supporting units can be kept in an operative position near to a surface of a developing roll when the electrode supporting units are in their operative positions and, on the other hand, the electrode wire can be kept in an inoperative position far from the surface of the developing roll when the electrode supporting units are in their inoperative positions. Thereby, foreign matters trapped in the electrode wire or accumulated on the electrode wire can be removed easily.

Abstract: A silicone rubber laminate including a conductive layer of cured silicone rubber containing carbon black and a dielectric layer of cured silicone rubber stacked and integrated to each other. The bonding force is enhanced by applying to the conductive layer a dielectric uncured silicone rubber composition comprising (a) an organopolysiloxane containing at least two alkenyl groups per molecule, (b) an organopolysiloxane containing at least two SiH groups per molecule, (c) reinforcing silica, (d) an organic silicon compound having an alkenyl group per molecule, and (e) a platinum catalyst, the molar ratio of the SiH group in component (b) to the total alkenyl group in components (a) and (d) ranging from 1:1 to 4:1, and curing the composition.

Abstract: An air bag coating composition is provided in the form of an aqueous silicone emulsion composition comprising (A) an aqueous emulsion of a hydroxyl-containing organopolysiloxane, (B) a reaction product of an amino functional silane or a hydrolyzate thereof with an acid anhydride, an epoxy-functional silane or a hydrolyzate thereof, or an organosilane having an isocyanate radical and a hydrolyzable radical in a molecule or a hydrolyzate thereof, (C) colloidal silica, and (D) a curing catalyst. The composition is applied and cured to an air bag base fabric to form a tack-free, crack resistant coating thereon.

Abstract: A room temperature vulcanizable silicone rubber composition is provided, comprising (A) an organopolysiloxane containing at least one amino group represented by --R.sup.1 NH.sub.2 in a molecule and having a viscosity of from 25 to 500,000 cst at 25.degree. C. wherein R.sup.1 is a divalent C.sub.1-20 hydrocarbon group or a divalent C.sub.1-20 organic group containing an ether bond or --NH-- bond, (B) an organic silicon compound of the formula: OCNR.sup.2 SiR.sub.a.sup.3 X.sub.3-a wherein R.sup.2 has the same meaning as R.sup.1, R.sup.3 is a monovalent C.sub.1-10 hydrocarbon group, X is an alkoxy, ketoxime, alkenyloxy or acyloxy group, and a is 0 or 1, and (C) a curing catalyst. The composition cures at room temperature, providing a product having improved heat resistance, weather resistance and adhesion.

Abstract: A silicone rubber composition comprises:(A) an organopolysiloxane R.sub.a SiO.sub.(4-a)/2 having an average degree of polymerization of 3000 or greater, wherein R is a substituted or unsubstituted monovalent hydrocarbon group, and 0.0001-0.05 mol % of R is alkenyl; a is 1.95-2.05; and(B) a fine powder of hydrophobic silica, wherein the specific surface area is 50 m.sup.2 /g or greater, the silica surface includes hydrophobic groups f MesiO.sub.3/2 and Me.sub.2 SiO in a weight ratio (MeSiO.sub.3/2)/(Me.sub.2 SiO) or 5/95-95/5, and the total carbon content contained in the MeSiO.sub.3/2 and Me.sub.2 SiO groups account for 0.5 wt % of greater of the silica. A material obtained by hardening this rubber composition has desirable resistance to steam and LLC.

Abstract: The present invention is characterized by adding and mixing an organosilicon compound having alkoxy, groups and an ester linkage in the molecule represented by the following formula: ##STR1## in an amount of 1 to 20 parts by weight per 100 parts by weight of a trifluoropropylalkylpolysiloxane. Said organosilicon compound has a function as a storage stabilizer as well as a curing agent and, according to the present invention, an RTV fluorosilicone composition that has hitherto been difficult to be applied as an adhesive for electric and electronic parts has been made possible to be used in the particular field.

Abstract: Silicone rubber compositions based on an organopolysiloxane are improved in release properties by blending a silane having both a fluorinated hydrocarbon group and an alkanoyloxy group and/or an organopolysiloxane having an alkanoyloxy or alkanoyloxyalkyl group.

Abstract: A silicone rubber composition that will be cured using as catalyst a platinum family metal and an organic peroxide, comprising as its constituent component an organosilizane compound represented by the following general formula:(R.sup.2).sub.3 SiNH(R.sup.3 R.sup.4 SiO).sub.n R.sup.3 R.sup.4 SiNHSi(R.sup.2).sub.3wherein R.sup.2 represents a substituted or unsubstituted monovalent hydrocarbon group, R.sup.3 and R.sup.4, which may be the same or different, each represent a hydrogen atom or a substituted or unsubstituted monovalent hydrocarbon group, and n is an integer of 2 to 20. Even if a large amount of a silica filler is blended in this silicone rubber composition, the silicone rubber composition is excellent in that it has suitable plasticity and is low in crepe hardening and good in workability such as rollability and extrudability.

Abstract: A room temperature curable organopolysiloxane composition comprising a diorganopolysiloxane having a hydroxyl group or alkoxy groups, a filler, a particular alkoxysilane, an organosilicon compound having a particular guanidinyl group, and an organic tin compound, and further comprising an organosilicon compound having at least one group represented by the general formula: ##STR1## where R.sup.4 is a substituted or unsubstituted monovalent hydrocarbon group, or a substituted or unsubstituted phenyl group, R.sup.5 and R.sup.6 are each a hydrogen atom, methyl or ethyl group, and n is an integer of 0, 1 or 2. By virtue of the last component, the composition exhibits markedly good storage stability.

Abstract: A silicone rubber composition having excellent workability and extrusion-moldability and capable of giving cured silicone rubber articles having good mechanical properties is proposed, which is prepared by admixing, in addition to the conventional ingredients of an organopolysiloxane gum, a finely divided reinforcing silica filler and a curing agent such as an organic peroxide, a low molecular-weight organopolysiloxane having, in a molecule, at least three silanolic hydroxy groups which serves as a wetting agent of the silica filler so as to improve the compatibility of the silica filler with the organopolysiloxane gum giving a possibility of increasing the amount of the silica filler without adverse influences such as a decrease in the plasticity of the composition.

Abstract: A die for press-molding an optical element with high precision comprises a base material made of a material excellent in heat resistance, heat shock resistance and mechanical strength at high temperature, an intermediate layer formed on the base material and made of a thin film excellent in grinding machinability and cutting machinability, and a surface protective layer formed on the intermediate layer and made of a metal thin film excellent in heat resistance and mechanical strength at high temperature and less reactive to a material of the optical element. Additional thin film may be inserted between the base material and the intermediate layer so as to enhance the adhesion strength between the base material and the intermediate layer. In place of the additional thin film to be inserted, a peripheral flange part of the intermediate layer is removed and thus on the removed peripheral part, the surface protective layer is directly adhered to the base material.

Abstract: A curable composition comprises an organopolysiloxane-polyoxyalkylene block copolymer terminated at both ends of a molecular chain with a lower aliphatic unsaturated group and consists essentially of organopolysiloxane units having a main chain of the formula, (R.sup.1 R.sup.2 SiO)m, and polyoxyalkylene units of the formula, (R.sup.3 O)n. The organopolysiloxane units and the polyoxyalkylene units are bonded through R.sup.1 R.sup.2 SiR.sup.4 groups, wherein R.sup.1 and R.sup.2 independently represent an unsubstituted or substituted monovalent hydrocarbon group except for an aliphatic unsaturated group, R.sup.3 and R.sup.4 independently represent a divalent hydrocarbon group, and m and n are, respectively, defined integers. The composition further comprises an organohydrogenpolysiloxane having at least two .tbd.SiH groups in one molecule and a curing agent therefor.