摘要:
A method containing a step of reacting a conjugated diene polymer having an alkali metal or alkaline earth metal active end with a hydrocarbyloxysilane compound having one or more of each of the following functional groups I and II in its molecule to obtain a modified conjugated diene polymer containing a functional group II, and a step of mixing the modified conjugated diene polymer and a compound such as organic acid. A modified conjugated diene rubber which can be used as a raw material of a cross-linked rubber which can be used in tire treads and the like and can enhance low fuel consumption performance is provided. The functional group I is a hydrocarbyloxysilyl group. The functional group II is a nitrogen-containing group in which both of two hydrogen atoms of a primary amino group are substituted with protective groups.
摘要:
Objects of the present invention are to provide a rubber composition that can obtain a rubber elastic body having small rolling resistance and excellent impact resilience and a method for producing the same, and to provide a tire having small rolling resistance and excellent impact resilience. The rubber composition of the present invention is obtained by kneading a rubber component containing 30 to 95% by mass of a conjugated diene polymer (A) and 5 to 70% by mass of cross-linked rubber particles (B) with 20 to 100 parts by mass of silica (C) based on 100 parts by mass of the rubber component.
摘要:
A traction machine base includes a top member, a bottom member, a bottom member, first bolts, and second bolts. The top member is intended for supporting a traction machine. A plurality of attachment holes for fixing the top member are formed in the bottom member. A plurality of attachment holes for fixing the top member are formed in the bottom member. The first bolts pass through the attachment holes and fix the top member to the bottom member. The second bolts pass through the attachment holes and fix the top member to the bottom member. The top member is fixed to the bottom member using a smaller number of the first bolts than the number of the attachment holes. The top member is fixed to the bottom member using a smaller number of the second bolts than the number of the attachment holes.
摘要:
A rubber composition that can obtain a rubber elastic body having small rolling resistance and excellent impact resilience and a method for producing the same, and a tire having small rolling resistance and excellent impact resilience are provided.The rubber composition of the present invention is obtained by kneading a rubber component containing a conjugated diene polymer (A) having at least one functional group selected from a tertiary amino group, a thiol group, a hydroxyl group, an epoxy group, a carboxylic acid group, a thioepoxy group, a hydrocarbylthio group and a hydrocarbylsilyl group and a conjugated diene polymer (B) having no functional group chemically bondable to silica, silica (C) and a dispersing agent (D) composed of an organic compound having at least one element selected from the group consisting of nitrogen, carbonyl oxygen and ether oxygen.
摘要:
A rubber composition that can be used in applications such as automotive tires and can improve the fuel efficiency performance and driving stability of automobiles and the like, a method for producing a rubber composition, and a tire using the same are provided.A rubber composition comprising: (A) a conjugated diene rubber which is obtained by polymerizing a conjugated diene compound or polymerizing a conjugated diene compound and an aromatic vinyl compound and has a group having an active hydrogen and a group capable of chemically binding to a silica, (B) a silica, (C) a silane coupling agent (I) capable of reacting with a carbon-carbon double bond of the conjugated diene in the conjugated diene rubber, and (D) a silane coupling agent (II) capable of reacting with the group having an active hydrogen; a method for producing a rubber composition, which comprises mixing the above-mentioned composition; and a tire which is obtained by crosslinking and molding the rubber composition obtained by the method for production.
摘要:
A method for producing an improved dried egg white includes preparing a dried egg white by drying a liquid egg white so that the dried egg white after drying has a pH of 9 or more, and dissipating carbon dioxide contained in the dried egg white, wherein, by dissipating carbon dioxide contained in the dried egg white, the pH of the dried egg white is increased to 0.01 to 1 to obtain a pH of 9.5 or more and carbon dioxide concentration in a sealed 250 ml vial is decreased to 1% or less, when 25 g of the improved dried egg white is stored in the vial at 75° C. for 24 hours.
摘要:
A board stacking connector chip, which is interposed between opposed first and second printed boards, for stacking both the printed boards, comprises an upper joint portion joined to a connection terminal of the first printed board, a pair of side portions which extend downward from terminal portions of the upper joint portion and are opposed to each other, and a pair of lower joint portions which extend by being bent inward transversely from the lower ends of side portions, being opposed to each other, and are joined to a connection terminal of the second printed board, the upper joint portion, paired side portions, and paired lower joint portions being formed into a substantially rectangular shape in section by bending a plate.
摘要:
A rubber composition that can be used in applications such as automotive tires and can improve the fuel efficiency performance and driving stability of automobiles and the like, a method for producing a rubber composition, and a tire using the same are provided.A rubber composition comprising: (A) a conjugated diene rubber which is obtained by polymerizing a conjugated diene compound or polymerizing a conjugated diene compound and an aromatic vinyl compound and has a group having an active hydrogen and a group capable of chemically binding to a silica, (B) a silica, (C) a silane coupling agent (I) capable of reacting with a carbon-carbon double bond of the conjugated diene in the conjugated diene rubber, and (D) a silane coupling agent (II) capable of reacting with the group having an active hydrogen; a method for producing a rubber composition, which comprises mixing the above-mentioned composition; and a tire which is obtained by crosslinking and molding the rubber composition obtained by the method for production.
摘要:
A method for producing an improved dried egg white includes preparing a dried egg white by drying a liquid egg white so that the dried egg white after drying has a pH of 9 or more, and dissipating carbon dioxide contained in the dried egg white, wherein, by dissipating carbon dioxide contained in the dried egg white, the pH of the dried egg white is increased to 0.01 to 1 to obtain a pH of 9.5 or more and carbon dioxide concentration in a sealed 250 ml vial is decreased to 1% or less, when 25 g of the improved dried egg white is stored in the vial at 75° C. for 24 hours.
摘要:
There is disclosed an NMR detector permitting NMR measurements to be performed well by making use of the merit of a meander coil if a trace amount of solution sample is investigated. Furthermore, an NMR spectrometer equipped with this detector is offered. The NMR detector comprises a planar sample cell and a planar detection coil disposed close to the sample cell. The sample cell has parallel, elongated sample spaces in connection with each other. The detection coil consists of a continuous elongated conductor repeatedly bent into segments which are substantially parallel to the sample spaces. Each of the segments has a major axis in the longitudinal direction of each of the sample spaces.