摘要:
An object of the present invention is to provide a novel sulfur-containing cyclic olefin resin having high transparency and high refractive index and being expected to utilization to optical materials such as various plastic lenses represented by a condensing lens, prism sheets, antireflective films, transparent coating materials such as an optical fiber coating material, optical films and the like, and its production method.The present invention relates to a sulfur-containing cyclic olefin resin comprising a unit represented by the following general formula (1) and having a weight average molecular weight of from 1,000 to 1,000,000. (Here, R1 to R6 each independently represents a hydrogen atom, an alkyl group having from 1 to 20 carbon atoms, an aralkyl group having from 1 to 20 carbon atoms, an aromatic group having from 1 to 20 carbon atoms, a cyano group, an alkoxy group having from 1 to 10 carbon atoms or a heterocyclic compound, further R3 to R6 may be a halogen atom, R3 and R4, and R5 and R6 may form a ring containing carbon, oxygen, sulfur or nitrogen, R7 and R8′, each independently represents a hydrogen atom or a methyl group, . . . represents a single bond or a double bond, and 1 and m each is 0 or 1.)
摘要:
A method of controlling an intake air passage of an internal combustion engine is provided. The intake air passage cyclically communicates to a combustion chamber of the internal combustion engine, thereby inducting fresh air into said combustion chamber. The cyclic communication of the intake air passage to the combustion chamber generates a pressure wave in the intake air passage. The method comprises reducing an effective length of a transmission path of the pressure wave in an upstream direction of the intake air passage as a desired air flow to the combustion chamber decreases. In accordance with the method, the effective length of the pressure wave transmission path is reduced as desired air flow decreases. With the reduced effective length, the pressure wave bounces back and forth between ends of the transmission path more often before the next cyclic communication. The more bouncing attenuates the pressure wave at the next cyclic communication. Therefore, the cylinder air charge can be stabilized when the desired air flow is decreased.
摘要:
A method of controlling an intake air passage of an internal combustion engine is provided. The intake air passage cyclically communicates to a combustion chamber of the internal combustion engine, thereby inducting fresh air into said combustion chamber. The cyclic communication of the intake air passage to the combustion chamber generates a pressure wave in the intake air passage. The method comprises reducing an effective length of a transmission path of the pressure wave in an upstream direction of the intake air passage as a desired air flow to the combustion chamber decreases. In accordance with the method, the effective length of the pressure wave transmission path is reduced as desired air flow decreases. With the reduced effective length, the pressure wave bounces back and forth between ends of the transmission path more often before the next cyclic communication. The more bouncing attenuates the pressure wave at the next cyclic communication. Therefore, the cylinder air charge can be stabilized when the desired air flow is decreased.
摘要:
A nitrogen-heterocyclic compound is provided which is represented by General Formula (1): where R1 and R2 are independently hydrogen, an alkyl group, an aryl group, or a heteroaryl group; R3 is hydrogen or an aryl group; R4 is a substituted amino group, an alkoxy group, a nitro group, or halogen; m is an integer from 0 to 2; and n is 0 or 1. A process for producing the above compound is also provided. This compound is useful as a source material of medicines, pesticides, electronic materials, and intermediates for other substituted nitrogen-heterocyclic compounds.
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:
An apparatus for controlling a rotational phase is disclosed. The apparatus comprises an input member provided so as to be rotatable, an output member co-axially provided with the input member so as to be rotatable, a planetary gear mechanism co-axially provided with the input member and the output member for connecting the input member with the output member, the planetary gear mechanism including three elements, namely a sun gear, a planetary carrier supporting planetary gears and a ring gear, a drive apparatus connected with one of the three elements of the planetary gear mechanism for shifting a rotation phase, the drive means including two members which are rotatable with respect to each other. One of the input member and the output member is connected with the ring gear, and the other of the input member and the output member is connected with the planetary carrier. The two members of the drive apparatus is co-axially provided with the planetary gear mechanism. One of the two members is secured to the fixed side, and the other of the two members is connected with the sun gear.
摘要:
To provide a catalyst composed of a salt of a phosphazenium cation and an active hydrogen compound anion, which can be easily synthesized, does not contain metal components at all, and does not leave any odor on a resulting product; a method for its production; an economical and efficient method for producing a polyalkylene oxide by means thereof; and a salt of a phosphazenium cation and an active hydrogen compound anion, represented by the following formula (2): [in the above formula (2), each of R1 and R2 which are independent of each other, is a C1-10 alkyl group, an unsubstituted or substituted C6-10 phenyl group, or an unsubstituted or substituted C6-10 phenylalkyl group, provided that R1 and R2, or R2's, may be bonded to each other to form a ring structure, n is a real number of from 1 to 8, and Yn− is an anion of an active hydrogen compound which is obtained by removing n protons from an active hydrogen compound Y] is used as a polyalkylene glycol producing catalyst.
摘要:
To provide a catalyst composed of a salt of a phosphazenium cation and an active hydrogen compound anion, which can be easily synthesized, does not contain metal components at all, and does not leave any odor on a resulting product; a method for its production; and an economical and efficient method for producing a polyalkylene oxide by means thereof.A salt of a phosphazenium cation and an active hydrogen compound anion, represented by the following formula (2): [in the above formula (2), each of R1 and R2 which are independent of each other, is a C1-10 alkyl group, an unsubstituted or substituted C6-10 phenyl group, or an unsubstituted or substituted C6-10 phenylalkyl group, provided that R1 and R2, or R2's, may be bonded to each other to form a ring structure, n is a real number of from 1 to 8, and Yn- is an anion of an active hydrogen compound which is obtained by removing n protons from an active hydrogen compound Y] is used as a polyalkylene glycol producing catalyst.
摘要:
An object of the present invention relates to provision of a terphenylene derivative having excellent oxidation resistance and capable of forming a semiconductor active phase by a coating process and an oxidation-resistant organic semiconductor material using the sane, as well as an organic thin film.The invention relates to production of a terphenylene derivative represented by the formula (1) by tetralithiating a tetrahaloterphenyl derivative with a lithiating agent and subsequently treating the resulting compound with a copper compound: wherein R1 to R14 are the same or different and each represents a hydrogen atom, a fluorine atom, a chlorine atom, an aryl group having 4 to 30 carbon atoms, an alkynyl group having 3 to 20 carbon atoms, an alkenyl group having 2 to 30 carbon atoms, an alkyl group having 1 to 20 carbon atoms or a halogenated alkyl group having 1 to 20 carbon atoms, or a diarylamino group having 8 to carbon atoms; and l, m, and n each represents an integer of 0 or 1.
摘要:
A novel class of polyaryleneamines improved in physical and chemical properties, particularly in heat resistance and solvent resistance, and a process for producing the same are disclosed: said polymers having tertiary arylamino units bound in series.