摘要:
The invention provides a crosslinkable aromatic resin having a protonic acid group and a crosslinkable group, suitable for electrolytic membranes and binders used in fuel cells, etc., and electrolytic polymer membranes, binders and fuel cells using the resin. The crosslinkable aromatic resin has a crosslinkable group, which is not derived from the protonic acid group and can form a polymer network without any elimination component. This resin exhibits excellent ion conductivity, heat resistance, water resistance, adhesion property and low methanol permeability. Preferably, the crosslinkable group is composed of a C1 to C10 alkyl group directly bonded to the aromatic ring and/or an alkylene group having 1 to 3 carbon atoms in the main chain in which at least one carbon atom directly bonded to the aromatic ring bonds to hydrogen, and a carbonyl group, or a carbon-carbon double bond or triple bond. The aromatic resins such as aromatic polyethers, aromatic polyamides, aromatic polyimides, aromatic polyamideimides, aromatic polyazoles, etc., which contain such a crosslinkable group, are preferred as the crosslinkable aromatic resins having a protonic acid group and a crosslinkable group.
摘要:
This invention provides a binder for a fuel cell which has high adhesion, low methanol solubility, high methanol permeability and high proton conductivity, a composition for electrode formation, an electrode for a fuel cell, and a fuel cell using them. The binder is particularly suitable for a binder for a direct methanol type fuel cell which requires high proton conductivity. The binder for a fuel cell comprises a block copolymer which comprises a block having a repeating structural unit of a divalent aromatic group that contains a protonic acid group and a block having a repeating structural unit of a divalent aromatic group that does not contain a protonic acid group, and which has a glass transition temperature (Tg) of 180° C. or less. In particular, it is preferable that the block copolymer has an ion exchange group equivalent of from 200 to 1,000 g/mole and a weight retention ratio of 90% or more as measured by immersion in a 64 weight % aqueous methanol solution at 25° C. for 24 hours.
摘要:
This invention provides a binder for a fuel cell which has high adhesion, low methanol solubility, high methanol permeability and high proton conductivity, a composition for electrode formation, an electrode for a fuel cell, and a fuel cell using them. The binder is particularly suitable for a binder for a direct methanol type fuel cell which requires high proton conductivity.The binder for a fuel cell comprises a block copolymer which comprises a block having a repeating structural unit of a divalent aromatic group that contains a protonic acid group and a block having a repeating structural unit of a divalent aromatic group that does not contain a protonic acid group, and which has a glass transition temperature (Tg) of 180° C. or less. In particular, it is preferable that the block copolymer has an ion exchange group equivalent of from 200 to 1,000 g/mole and a weight retention ratio of 90% or more as measured by immersion in a 64 weight % aqueous methanol solution at 25° C. for 24 hours.
摘要:
A raindrop detection device includes a first fixing member which is fixed to a windshield and has a first engagement portion, an inner housing in which a detection unit is accommodated, an outer housing in which the inner housing is accommodated and which is fixed to the inner housing, a second fixing member having a second engagement portion which is detachably engaged with the first engagement portion of the first fixing member, and a leaf spring which is engaged with the inner housing to press and bias the inner housing toward the windshield. The second fixing member has a leaf-spring biasing portion, which contacts the leaf spring to elastically bias the leaf spring toward the windshield at a predetermined pressing force.
摘要:
A wiper control device for a vehicle with a wiper includes a day/night detecting device for detecting whether the vehicle is in day-like or night-like conditions. The device also includes a moisture detection device that detects a quantity of moisture on the vehicle and a controlling device that controls the wiping action of the wiper based on a wiping sensitivity to the quantity of moisture detected. The controlling device adjusts the wiping sensitivity between night-like wiping sensitivity and day-like wiping sensitivity. The controlling device adjusts wiping sensitivity to night-like wiping sensitivity when the day/night detecting device detects night-like conditions and to day-like wiping sensitivity when the day/night detecting device detects day-like conditions. Additionally, when the day/night detecting device detects a change between day-like and night-like conditions, the controlling device delays switching between night-like and day-like wiping sensitivity for a predetermined delay time.
摘要:
A raindrop detection apparatus includes a light emitting unit for emitting light to an inner side of a windshield, a light receiving unit for receiving the light reflected by an outer surface of the windshield, a first lens unit which is arranged between the windshield and the light emitting unit to convert the light from the light emitting unit into parallel light, and a second lens unit which is arranged between the windshield and the light receiving unit to converge the reflected light at the light receiving unit. The second lens unit is larger than a radial cross section of the reflected light. An amount of raindrop landed on the outer surface of the windshield is detected based on an intensity of the light received by the light receiving unit.
摘要:
Microstructures, including a plurality of spaced structural members which are bendable under an external force, undergo a treating method using a first treating liquid, to prevent permanent deformation, by removing the microstructure from the first treating liquid to an environment having a pressure less than atmospheric pressure; or moving the microstructure from the first treating liquid to a second treating liquid having a smaller surface tension than the first treating liquid, and then removing the microstructure from the second liquid; or drying the microstructure removed from the first treating liquid by exposing same to a liquid vapor having a smaller surface tension than the first treating liquid; or removing the microstructure from the first treating liquid to the atmosphere, and drying the microstructure using an energy beam of high intensity or an ultrasonic wave.
摘要:
A vehicle presence notification apparatus may include a dynamic speaker for radiating a notification sound from a vehicle in an audible frequency, and a sound pressure supplement unit is provided to control a sound pressure of the notification sound. The apparatus may further include a parametric speaker for generating a supersonic sound of the notification sound from a supersonic sound generation unit. The supersonic sound is emitted from a sound emission opening. The parametric speaker may further include a reflected sound pressure detecting unit for detecting a sound pressure generated by a reflection of the supersonic sound from the sound emission opening. The sound pressure supplement unit increases the sound pressure of the notification sound radiated by the dynamic speaker based on the sound pressure detected by the reflected sound pressure detecting unit.
摘要:
According to one embodiment, a method for producing a developing agent includes pulverizing a mixture in the form of coarse particles of a toner material including a coloring agent and a binder resin by mechanical shearing, aggregating and fusing the resulting fine particles. The solid content concentration in a dispersion liquid including the aggregated particles is from 5.0% to 40.0%, the volume average particle diameter of the aggregated particles is from 1.0 μm to 10.0 μm, and the ratio of the standard deviation to the volume average particle diameter is 30.0% or less.
摘要:
A raindrop detection apparatus includes a light emitting unit for emitting light to an inner side of a windshield, a light receiving unit for receiving the light reflected by an outer surface of the windshield, a first lens unit which is arranged between the windshield and the light emitting unit to convert the light from the light emitting unit into parallel light, and a second lens unit which is arranged between the windshield and the light receiving unit to converge the reflected light at the light receiving unit. The second lens unit is larger than a radial cross section of the reflected light. An amount of raindrop landed on the outer surface of the windshield is detected based on an intensity of the light received by the light receiving unit.