摘要:
A compound represented by the following formula (a): CH2═CR1—CONJ-CKR2—(CH2)n—COO-Q1-Rf1 (a) is provided. This compound is capable of forming a polymer having an oil repellency equivalent to polymers containing a polyfluoroalkyl group containing at least 8 carbon atoms, although the polyfluoroalkyl group contains up to 6 carbon atoms. In the formula, R1 is hydrogen atom or methyl group, R2 is hydrogen atom or a group represented by —(CH2)m—COO-Q2-Rf2 (r), n and m are independently an integer of 0 to 4, Rf1 and Rf2 are independently a polyfluoroalkyl group or a polyfluoroether group containing 1 to 6 carbon atoms, Q1 and Q2 are independently single bond or a divalent linkage group, J is hydrogen atom or an alkyl group containing 1 to 3 carbon atoms, K is hydrogen atom or an alkyl group containing 1 to 3 carbon atoms, and j and k are independently single bond or an alkylene group containing 1 to 3 carbon atoms with the proviso that j and k are not simultaneously single bond.
摘要:
A compound represented by the following formula (a): CH2═CR1—CONJ-CGR2—(CH2)n—COO-Q1-Rf1 (a) is provided. This compound is capable of forming a polymer having an oil repellency equivalent to polymers containing a polyfluoroalkyl group containing at least 8 carbon atoms, although the polyfluoroalkyl group contains up to 6 carbon atoms. In the formula, R1 is hydrogen atom or methyl group, R2 is hydrogen atom or a group represented by —(CH2)m—COO-Q2-Rf2 (r), n and m are independently an integer of 0 to 4, Rf1 and Rf2 are independently a polyfluoroalkyl group or a polyfluoroether group containing 1 to 6 carbon atoms, Q1 and Q2 are independently single bond or a divalent linkage group, J is hydrogen atom or an alkyl group containing 1 to 3 carbon atoms, and G is hydrogen atom or an alkyl group containing 1 to 3 carbon atoms.
摘要:
The present invention provides an LED (Light Emitting Diode) illumination unit, an LED illumination device, and an LED illumination system with better visual effect. The LED illumination unit includes: a substrate, having a carrying surface with an x direction as a length direction and a y direction as a width direction and facing a z direction; a plurality of LED chips, supported by the carrying surface of the substrate; a casing, allowing the light emitted from the LED chips to penetrate and covering the LED chips; and a heat dissipation component, having a pair of outside surfaces being planar, and mounted with the substrate and the casing, wherein the pair of outside surfaces is configured opposite and parallel to each other in the y direction at an interval, and is longer than the substrate in the x direction.
摘要:
A jump destination site determination method and system determine a site which is a jump destination of a hyperlink selected in a terminal apparatus. The system and method include receiving a jump destination distribution ratio representing a ratio of jumping to each of a plurality of sites storing same contents, which varies over time, and contents including a hyperlink to which the jump destination distribution ratio is correlated, judging whether a time period elapsing from a time the contents are received until a time the hyperlink included in the contents is selected is equal to or longer than a predetermined time period, and acquiring a jump destination distribution ratio effective at a point in time at which the hyperlink is selected from the server responsive to determining that the time period elapsed is equal to or longer than the predetermined time period.
摘要:
The present invention provides an LED (Light Emitting Diode) illumination unit, an LED illumination device, and an LED illumination system with better visual effect. The LED illumination unit includes: a substrate, having a carrying surface with an x direction as a length direction and a y direction as a width direction and facing a z direction; a plurality of LED chips, supported by the carrying surface of the substrate; a casing, allowing the light emitted from the LED chips to penetrate and covering the LED chips; and a heat dissipation component, having a pair of outside surfaces being planar, and mounted with the substrate and the casing, wherein the pair of outside surfaces is configured opposite and parallel to each other in the y direction at an interval, and is longer than the substrate in the x direction.
摘要:
An LED lighting device A1 includes a plurality of LED chips 32, an LED unit 2 in which the LED chips 32 are mounted, and a mount 1 holding the LED unit 2. This arrangement allows the appearance or structure of the LED lighting device to be adapted for various applications. For instance, the LED lighting device may be mounted on an indoor ceiling to illuminate the floor surface or an upper part of a wall surface.