摘要:
A rubber composition comprising a vulcanizable rubber, a reinforcing filler, a softening agent, and other reagents for rubber to which is added in a specific amount of a sulfur compound having the formula (I): —(SxR1)n— (I) wherein R1 represents an organic group, x is a number of 3 to 5 on average, and n is an integer of 1 to 100, or a specific sulfur compound (1) and sulfur (2), and optionally a thiazole base, sulfenamide base, thiuram base, and/or diothio acid base vulcanization accelerator (3).
摘要:
A rubber composition comprising a vulcanizable rubber, a reinforcing filler, a softening agent, and other reagents for rubber to which is added in a specific amount of a sulfur compound having the formula (I): —(SxR1)n— (I) wherein R1 represents an organic group, x is a number of 3 to 5 on average, and n is an integer of 1 to 100, or a specific sulfur compound (1) and sulfur (2), and optionally a thiazole base, sulfenamide base, thiuram base, and/or diothio acid base vulcanization accelerator (3).
摘要:
A butyl rubber having at least one repeating unit of the formulae (I) and (II): wherein R independently represents a hydrogen atom or at least one group selected from the group consisting of methyl, ethyl, propyl, isopropyl and butyl groups.
摘要:
A polysiloxane having a siloxane structure of the following formulas (1) and (2): ##STR1## wherein, R.sup.1 is a C.sub.1 to C.sub.6 alkyl group or C.sub.1 to C.sub.21 acyl group, a is 1 to 200, b is 1 to 200, t is 2 or 3 and r is 1 to 100, and a rubber composition containing the same.
摘要:
A thermoplastic elastomer composition which, when used for the inner tube and/or outer cover of a hose, can improve the hose flexibility at an ordinary temperature and low temperature, oil resistance, and cold resistance and can reduce the production costs since it does not require a vulcanization step and a hose having said properties using this elastomer composition for its inner tube and/or outer cover and a process and apparatus for the production thereof.
摘要:
A process for producing surface-treated carbon black for rubber reinforcement characterized by providing carbon black and organosiloxane together; and then heating the mixture to a temperature of 60.degree. C. to 200.degree. C. to deposit a silicon dioxide residue on the surface of the carbon black and a rubber composition using the same.
摘要:
Provided herein are a phenolic hydroxyl group-containing aromatic polyamide resin and a resin composition containing the resin, such as an epoxy resin composition containing an epoxy resin. The phenolic hydroxyl group-containing aromatic polyamide resin has a structure represented by the following formula (1): wherein m and n are average values satisfying the following formula: 0.005≦n/(m+n)
摘要:
A power transmission device that transmits power from a motor to a wheel via a hydraulically driven friction engagement element and that includes a mechanical pump driven by the motor to produce a hydraulic pressure that is regulated by a pressure regulating valve; an electric pump that produces a hydraulic pressure; a switching mechanism that either switches an output pressure of the regulating valve or an output pressure of the electric pump to a servo of the engagement element based upon a signal pressure; a passage to supply pressure from the mechanical pump to the hydraulic servo; a check valve in the passage that allows supply of the pressure from the mechanical pump to the hydraulic servo and prohibits supply of the pressure from the electric pump to the mechanical pump, and the switching mechanism either shuts off or allows communication through the passage based upon the signal pressure.
摘要:
An automatic transmission including an input shaft connected to a drive source; an output shaft connected to a driving wheel; a one-way clutch; friction engagement elements which establish speeds by changing a transmission path between the input shaft and the output shaft based on the application state of the friction engagement elements and application of the one-way clutch, one of the friction engagement elements being a brake that is applied when coasting in a take-off speed. The automatic transmission also includes a controller that determines whether it is possible to initially establish the take-off speed using the one-way clutch based on a predetermined condition, and, if not possible, then the controller establishes the take-off speed by applying the brake.
摘要:
A manual valve is formed with a drain input port that closes if a shift is made to the D position, and opens for draining if a shift is made to the N position. A switching valve communicates an output port of a pressure regulating valve portion and an oil passage of a clutch and closes a drain port during engine operation when a line pressure is applied, and cuts off communication between the output port of the pressure regulating valve portion and the oil passage of the clutch and communicates the oil passage with the drain port during an engine automatic stop when the line pressure is not applied. The drain input port and the drain port are connected by a drain oil passage.