摘要:
A catalyst for trimerization of ethylene is disclosed which comprises (a) a chromium complex having a neutral multidentate ligand having a tripod structure, represented by the formula, ACrJnQ3-n wherein A is a neutral multidentate ligand having a tripod structure, J is a carbonyl ligand or halogen, n is an integer of 0-3, and Q is at least one member selected from hydrogen, a C1-C10 hydrocarbon group, a C1-C10 carboxylate group, a C3-C10 diketonato group, an amide group, an imide group, an C1-C10 alkoxide group, a C1-C10 thioalkoxide group, an C6-C15 arene ligand, an C2-C10 alkene ligand, an C2-C15 alkyne ligand, an amine ligand, an imine ligand, an isonitrile ligand, a phosphine ligand, a phosphine oxide ligand, a phosphite ligand, an ether ligand, a sulfide ligand, a sulfone ligand and a sulfoxide ligand, and (b) a metal alkyl compound. The catalyst optionally further comprises (c) at least one compound selected from aromatic tertiary amine compounds, except for an imine, and nitrogen-containing heterocyclic compounds, and (d) a radical anion compound.
摘要:
A catalyst used for trimerization of ethylene into 1-hexene is descrobed, which comprises (i) a specific organometallic complex having a neutral multidentate ligand having a tripod structure, (ii) an alkylaluminoxane, and an optional ingredient selected from: (iii) a halogenated inorganic compound, (iv) a specific alkyl group-containing compound, (v) a combination of a halogenated inorganic compound with a specific alkyl group-containing compound, (vi) an amine compound and/or an amide compound, and (vii) a combination of an amine compound and/or an amide compound with a specific alkyl group-containing compound.
摘要:
A catalyst used for trimerization of ethylene into 1-hexene is descrobed, which comprises (i) a specific organometallic complex having a neutral multidentate ligand having a tripod structure, (ii) an alkylaluminoxane, and an optional ingredient selected from: (iii) a halogenated inorganic compound, (iv) a specific alkyl group-containing compound, (v) a combination of a halogenated inorganic compound with a specific alkyl group-containing compound, (vi) an amine compound and/or an amide compound, and (vii) a combination of an amine compound and/or an amide compound with a specific alkyl group-containing compound.
摘要:
A catalyst used for trimerization of ethylene into 1-hexene is descrobed, which comprises (i) a specific organometallic complex having a neutral multidentate ligand having a tripod structure, (ii) an alkylaluminoxane, and an optional ingredient selected from: (iii) a halogenated inorganic compound, (iv) a specific alkyl group-containing compound, (v) a combination of a halogenated inorganic compound with a specific alkyl group-containing compound, (vi) an amine compound and/or an amide compound, and (vii) a combination of an amine compound and/or an amide compound with a specific alkyl group-containing compound.
摘要:
When a client PC receives a request for printing output data, an imaging apparatus captures an image of a user. The image data of the user captured by the imaging apparatus and the output data is transferred to a management server. The management server performs predetermined image processing on the acquired image data, calculates a characteristic amount of the image data of the user, and registers the calculated characteristic amount and the output data by associating with each other. When the user requests printing of the output data from an image forming apparatus, image data of the user captured by the imaging apparatus is transferred to the management server. The management server calculates a characteristic amount of the acquired image data of the user, compares the calculated characteristic amount with the characteristic amount in the management server, and transfers the output data to the image forming apparatus.
摘要:
An image forming device includes an image forming section that forms an image in accordance with predetermined image formation conditions; a storage section that stores a target darkness of a standard image; a measurement section that measures a physical quantity for specifying the darkness of the image formed by the image forming section; a user calibration section that causes the image forming section to form the standard image in response to an instruction input by a user, causes the measurement section to measure the physical quantity when that standard image is formed, and if there is a discrepancy between the darkness of the standard image specified by the measurement of the physical quantity and the target darkness stored in the storage section, adjusts the image formation conditions such that this discrepancy is eliminated; a manual darkness adjustment section that changes the image formation conditions to content that is specified by the user; a control section that, when the user calibration section causes the image forming section to form the standard image, causes the image forming section to follow image formation conditions that do not reflect the content changed by the manual darkness adjustment section.
摘要:
An optical information recording apparatus, an apparatus and method for setting a write strategy, and a computer program therefor are provided. In the optical information recording apparatus, a write strategy corresponding to different linear velocities of an optical recording medium is set, and, based on the set write strategy, a write strategy corresponding to an arbitrary linear velocity is determined.
摘要:
The present invention provides a rubber composition containing a reclaimed rubber and a method for producing the same. A rubber molded article having excellent rubber properties can be obtaining and the recycling of a used rubber product can be promoted by the present invention. A rubber composition of the present invention is a blend comprising a reclaimed rubber obtained by applying a heat and a shear stress to a vulcanized rubber, a non-vulcanized virgin rubber or/and a thermoplastic resin, wherein the reclaimed rubber contains 40% by weight or more of a residual toluene-insoluble gel component and the network chain density of the rubber in the component is 1/20 to 1/4 based on the network chain density of the rubber of the vulcanized rubber.
摘要:
A catalyst for polymerization of an olefin, which comprises (a) a transition metal compound of the following formula (1), (2) and/or (3): ##STR1## wherein each of M.sup.1, M.sup.2 and M.sup.3 is a titanium atom, a zirconium atom or a hafnium atom, each of Cp.sup.1, Cp.sup.2, Cp.sup.3, Cp.sup.4 and Cp.sup.5 is a cyclopentadienyl group, an indenyl group, a fluorenyl group or a substitution product thereof, R.sup.1 is a hydrogen atom, a C.sub.1-20 hydrocarbon group or a C.sub.1-20 alkylsilyl group, each of X.sup.1, X.sup.2, X.sup.3, X.sup.4, X.sup.5 and X.sup.6 is a hydrogen atom or a C.sub.1-20 hydrocarbon group, Z.sup.1 is a C.sub.1-20 hydrocarbon group, a silicon-containing C.sub.1-20 hydrocarbon group or a C.sub.1-20 alkylsilanediyl group, which serves to connect Cp.sup.3 and Cp.sup.4, Z.sup.2 is a C.sub.1-20 hydrocarbon group, a silicon-containing C.sub.1-20 hydrocarbon group or a C.sub.1-20 alkylsilanediyl group, which serves to connect Cp.sup.5 and J, J is an element of Group 15 or 16 of the Periodic Table, a is a coordination number of J, L is a Lewis base, and b is the number of the Lewis base L, provided 0.ltoreq.b.ltoreq.3, and (b) a modified clay obtained by treating clay or clay mineral with a compound containing an element of Group 15 or 16 of the Periodic Table.
摘要:
A bipolar transistor for clamping an excess input potential is provided near an input pad. A signal from the input pad is supplied through a wire to the gate of a MOS transistor in the input stage. A diode is provided near the gate of the MOS transistor. The diode absorbs a potential oscillation generated in the wire near the gate of the transistor, which is due to action of an inductance involved in the wire.