摘要:
A surface treatment composition comprises a polyfluoropolyether silane. The polyfluoropolyether silane and the surface treatment composition are produced by reacting a perfluoropolyether-containing compound and a hydrosilane in the presence of a hydrosilylation catalyst and an isomer reducing agent.
摘要:
A surface treatment composition comprises a polyfluoropolyether silane. The polyfluoropolyether silane and the surface treatment composition are produced by reacting a perfluoropolyether-containing compound and a hydrosilane in the pres-ence of a hydrosilylation catalyst and an isomer reducing agent.
摘要:
The present invention relates to a compound represented by the following general formula (I): wherein R1 and R2 independently represent a monovalent hydrocarbon group; R3 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms; X represents a divalent hydrocarbon group; and R4, R5 and R6 independently represent a monovalent organic group or a group represented by the following general formula (II): in which R7 and R8 independently represent a monovalent hydrocarbon group; and R9 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, with the proviso that R5 and R6 may combine together to form a divalent hydrocarbon group. The aforementioned compounds are useful as a polymerization inhibitor and the like.
摘要:
An objective of the present invention is to provide a curable silicone composition of the present invention exhibiting superior adhesive properties with respect to a poor-adhesive resin such as PPS, even if the composition is cured at a relatively low temperature for a short period. The aforementioned objective of the present invention is achieved by a curable silicone composition comprising: (A) an organopolysiloxane having at least two alkenyl groups in a molecule, (B) an organopolysiloxane having at least two silicon-bonded hydrogen atoms in a molecule, (C) a hydrosilylation-reaction catalyst, and (D) an acid anhydride having an alkoxy group bonding to a silicon atom or an alkoxyalkoxy group bonding to a silicon atom.
摘要:
An objective of the present invention is to provide a curable silicone composition of the present invention exhibiting superior adhesive properties with respect to a poor-adhesive resin such as PPS, even if the composition is cured at a relatively low temperature for a short period. The aforementioned objective of the present invention is achieved by a curable silicone composition comprising: (A) an organopolysiloxane having at least two alkenyl groups in a molecule, (B) an organopolysiloxane having at least two silicon-bonded hydrogen atoms in a molecule, (C) a hydrosilylation-reaction catalyst, and (D) an acid anhydride having an alkoxy group bonding to a silicon atom or an alkoxyalkoxy group bonding to a silicon atom.
摘要:
The present invention relates to a compound represented by the following general formula (I): wherein R1 and R2 independently represent a monovalent hydrocarbon group; R3 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms; X represents a divalent hydrocarbon group; and R4, R5 and R6 independently represent a monovalent organic group or a group represented by the following general formula (II): in which R7 and R8 independently represent a monovalent hydrocarbon group; and R9 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, with the proviso that R5 and R6 may combine together to form a divalent hydrocarbon group. The aforementioned compounds are useful as a polymerization inhibitor and the like.
摘要:
A paper tube of a propeller tube 12 is made by winding a single faced corrugated fiberboard 16 in which a wavy corrugating medium 16b is fixed to one side of a flat linerboard 16a so that the corrugating medium 16b is oriented outwards, and the corrugating medium 16b contacts with an inner surface of the propeller tube 12, so as to enhance a vibration controlling function. When winding the single faced corrugated fiberboard 16, since the single faced corrugated fiberboard 16 cannot be wound in a direction oblique to a direction of ridges of the corrugating medium 16b, there are no fears that the shape of the single faced corrugated fiberboard 16 is collapsed to taper axially, thereby it becomes possible to prevent a reduction in vibration controlling function that would otherwise be caused due to a change in the shape of the paper tube.
摘要:
In a contactless ignition control system having a dwell time control circuit for an internal combustion engine, there is provided a speed responsive bias voltage circuit, a bias voltge switching circuit and a wave shaping circuit. The speed responsive bias voltage changes the switching level of the wave shaping circuit, thereby elongating the dwell time of the current flowing through an ignition coil.In the dwell time control, when the ignition timing comes, the bias voltage switching circuit prevents application of the speed responsive bias voltage so that the ignition timing is made irrespective of the speed responsive bias voltage.
摘要:
In the present invention, when an organopolysiloxane is produced by a dealcoholization condensation reaction between a silicon atom-bonded hydroxy group and a silicon atom-bonded alkoxy group, a quaternary ammonium ion-containing compound such as an alkylammonium hydroxide compound or a silanolate thereof is used as a catalyst. The catalyst for the dealcoholization condensation reaction of the present invention is easily removed after use and is stable. For this reason, when an organopolysiloxane is produced using the aforementioned catalyst, it is not necessary to use complicated production steps or a large amount of the catalyst.
摘要:
A power transmission device comprises a propeller shaft (PS) and a rear axle device (AR) that is linked and transmits rotational drive force. In the structure linking the propeller shaft and the rear axle device, a first mark indicating the direction of rotational imbalance in the propeller shaft is provided to the propeller shaft, a second mark is provided to a companion flange (30) linked to the propeller shaft in the rotation transmission device, for indicating the direction of rotational imbalance in the companion flange (30), and the propeller shaft and the companion flange are linked on the basis of the first and second marks.