Abstract: A precursor composition capable to form a solid-state electrolyte having good ion conductivity and high heat-resistance, by simple curing procedure, comprising; (A) a polymerizable ion pair compound represented by formula I, (B) a cross-linker having two or more unsaturated groups co-polymerizable with the polymerizable ion pair compound (A), and (C) non-polymerizable ion pair compound. Each of R1, R2, R3, R4, R5 and R6 represents hydrogen atom, alkyl or aryl group having 1-12 carbon atoms; and each of R7 and R8 represents alkyl or aryl group having 1-12 carbon atoms.

Abstract: A precursor composition capable to form a solid-state electrolyte having good ion conductivity and high heat-resistance, by simple curing procedure, comprising; (A) a polymerizable ion pair compound represented by formula I, (B) a cross-linker having two or more unsaturated groups co-polymerizable with the polymerizable ion pair compound (A), and (C) non-polymerizable ion pair compound. Each of R1, R2, R3, R4, R5 and R6 represents hydrogen atom, alkyl or aryl group having 1-12 carbon atoms; and each of R7 and R8 represents alkyl or aryl group having 1-12 carbon atoms. X designates either of halogen atom, AlCl4?, PF6?, BF4?, bis (oxalato) borate anion, Rf1SO3?, (NC)2N?, (Rf2Y)2N?, (Rf2Y)3C?, and (Rf2Y)2C?Q, where Rf1 designates perfluoro alkyl or aryl group having 1-8 carbon atoms; each Rf2 designates fluorine atom, perfluoro alkyl or aryl group having 1-8 carbon atoms; Y designates —SO2—or —PO—Rf2; and Q designates —H or —CO—Rf2.

Abstract: The machine consists of a bearing box which is secured onto the trunk of the machine and is equipped with a pair of axes at both sides and suspends the center of gravity of the machine to rotate same freely, and a U-type supporting device is installed at the axes respectively, and a revolving or swivel joint is installed at the upper end of the above supporting device so as to enable the machine to rotate freely.