Abstract:
A fluorine-containing polymer comprising a fluoroalkyl alcohol (meth)acrylic acid derivative represented by a general formula, CnF2n+1(CH2CF2)a(CF2CF2)b(CH2CH2)cOCOCR═CH2 (in the formula, R is a hydrogen atom or a methyl group, n is an integer of 1 to 6, preferably 2 to 4, a is an integer of 1 to 4, b is an integer of 0 to 3, and c is an integer of 1 to 3) containing in 5 to 100 wt % as a polymerization unit. A organic solvent solution or aqueous dispersion of the fluorine-containing polymer is effectively used as, for example, a surface-modifying agent such as a water- and oil-repellent or an oil barrier.
Abstract:
A biopolyester which is poly(3-hydroxyalkanoate) or poly(3-hydroxyalkanoate) copolymer and has a reduced calcium content. It has improved thermal stability due to the reduced calcium content.
Abstract:
An electric lawn mower may include a switch assembly including a first switch, a second switch and a main switch. When the main switch is turned on an electric motor is started. The first and second switch may include first and second actuators, respectively. When the switch assembly is operated according to a proper operation sequence, the first actuator and the second actuator may interact with each other to activate the main switch, and when the switch is operated according to an improper operation sequence, the first actuator and the second actuator may not interact with each other, so that the main switch is not activated.
Abstract:
An electric lawn mower may include a mower body including an electric motor, a cutting blade rotatably driven by the electric motor for mowing a lawn, a battery mount configured to hold a battery, and a lock including a key and a key receiver for locking and unlocking the electric motor. The key receiver may be spaced from the battery mount and when the key is inserted into the key receiver, the electric motor may be unlocked for operation.
Abstract:
In the event of modifying analysis condition, after the simulation of a first time step carried out when the analysis condition is modified finishes and before the simulation of a second time step next after the first step starts, the modified analysis condition is referred and the simulation based on the modified analysis condition is carried out in the next time step.
Abstract:
An object is to provide a liquid level sensor device for liquefied gas enabling measurement on a liquid level of liquefied gas having a boiling point in the vicinity of 21 K, e.g. liquid hydrogen, accurately and with good reproducibility and enabling simple production with good reproducibility. The present invention is a liquid level sensor device for liquefied gas including compound containing magnesium and boron arranged in succession in the longitudinal direction over the entire or a part of surface of a linear conductor made of metal and a portion of the compound thereof dipped in liquid is in a superconductive state at liquid level measurement.
Abstract:
A three-dimensional simulation apparatus includes a memory configured to store form information of a sheet flexible object model formed of first polygons and another object model, an interference determination unit configured to determine whether the sheet flexible object model formed of the first polygons in three-dimensional simulation space interferes with the other object model on the basis of the form information stored in the storage unit, a polygon creation unit configured to form second polygons by dividing the sheet flexible object model in a longitudinal direction when it is determined that the sheet flexible object model interferes with the other object model, and a shape computation unit configured to determine a shape of the sheet flexible object model using the formed second polygons in consideration of a shape of the other object model.
Abstract:
A side stand switch includes a case member having a fixed contact; and a rotor body having a moving contact that can come into contact with the fixed contact, mounted by tightening a securing bolt, and turned together with a side stand bar with respect to the case member. The rotor body has an engagement pin inserted therein and to be inserted into an engagement hole formed in the side stand bar. A width of the engagement pin in the turning direction of the rotor body is larger at a base portion inside the rotor body than at a tip portion protruding from the rotor body.
Abstract:
A fluorine-containing polyether phosphonic acid ester compound represented by the following general formula: (R2O)(R1O)P(O)(CH2)aCF(CF3)[OCF2CF(CF3)]bO(CF2)CO[CF(CF3)CF2O]dCF(CF3)(CH2)eP(O)(OR3)(OR4) (where R1, R2, R3 and R4 are hydrogen atoms, alkyl groups, cycloalkyl groups, aryl groups, alkylaryl groups, aralkyl groups, or any of the foregoing groups substituted with halogen atoms, and subscripts a, b, c, d, and e are in conditions of 2≦a+e≦8, b+d≦28, and 1≦c≦10, and subscripts b and d may be 0). The fluorine-containing polyether phosphonic acid ester compound is produced by reaction of a fluorine-containing polyether dialkyl halide represented by the following general formula: X(CH2)aCF(CF3)[OCF2CF(CF3)]bO(CF2)cO[CF(CF3)CF2O]dCF(CF3)(CH2)eX (X: Cl, Br or I)with a phosphite compound represented by the following general formula: (R1O)(R2O)P(OR) and/or (R3O)(R4O)P(OR) (R: a hydrogen atom or a lower alkyl group).