摘要:
A process for preparing a high-purity quaternary ammonium salt comprising: (1) adding an oxide or hydroxide of a Group 1, 2, 12 or 13 metal to a quaternary ammonium salt containing a protonic acid salt of a tertiary amine as an impurity and thereby neutralizing the tertiary amine protonic acid salt with the metal oxide or hydroxide to convert the acid salt to a tertiary amine and water and to convert the metal oxide or hydroxide to a metal salt at the same time, and (2) removing the tertiary amine, water and metal salt produced from the system.
摘要:
A thrust-out type container for a rod-like article such as a lipstick comprises, in the order from the outside to the inside as viewed in a diametric direction of the container, an outer cylinder, an inner cylinder and a carrier. The carrier serves to support the rod-like article attached thereto. A control cylinder integrated with the inner cylinder lies outside the outer cylinder. An intermediate cylinder is interposed between the outer cylinder and the control cylinder. The intermediate cylinder comprises an upper portion extending upward beyond an upper end of the control cylinder and a lower portion extending into the control cylinder. A coupling member serving to couple the inner cylinder and the intermediate cylinder to each other is snap-engaged with the lower portion of the intermediate cylinder.
摘要:
An electrolyte solution for electric double layer capacitors, which comprises the following (a) and (b): (a) a compound represented by the formula (1), (b) a mixed solvent comprising ethylmethyl carbonate, at least one kind selected from chain carbonates other than ethylmethyl carbonate, and at least one kind selected from cyclic carbonates, (wherein R1 and R2 may be the same or different and independently denote methyl, ethyl, methoxymethyl or ethoxymethyl, or may form a ring structure).
摘要:
A quaternary ammonium salt of the formula (1), electrolytic solution and electrochemical device using the salt wherein R1 is straight-chain or branched alkyl having 1 to 4 carbon atoms, R2 is straight-chain or branched alkyl having 1 to 3 carbon atoms, and X− is N(CN)2−, SCN−, NO3−, NCO− or NO2−.
摘要:
High odor eliminating property is provided to a building material for interiors by compounding a hydrazide compound. Additionally, the odor eliminating property of the building material for interiors is improved and hygroscopicity and size stability at the time of use are provided by adding and compounding an organic carbide, an inorganic hygroscopic material, and a water repellent. Also, an interior structure in which these building materials for interiors are employed is provided.
摘要:
A cosmetic container (10) comprises a housing assembly (1, 3, 4, 7, 9) with an annular projection (8) and a cap assembly (11, 12) with an inner cap member (12) engageable with the annular projection. The inner cap member has a thin wall portion (15) defined between a pair of upper and lower annular external swells (16, 17), which is deformed to provide air-tight engagement with the annular projection in a capped condition. The lower swell (16) acts as a first stopper against removal of the cap assembly from the housing assembly, whereas the upper swell (17) acts as a second stopper against excessive insertion of the housing assembly into the cap assembly.
摘要:
A process for preparing a highly pure quaternary ammonium salt comprising:(1) adding a quaternary ammonium hydroxide salt or quaternary ammonium carbonate to a quaternary ammonium salt containing a protonic acid salt of a tertiary amine as an impurity and thereby neutralizing the tertiary amine protonic acid salt with the quaternary ammonium hydroxide salt or carbonate to convert the acid salt to a tertiary amine and water and to convert the quaternary ammonium hydroxide salt or carbonate to a quaternary ammonium salt at the same time, and(2) removing the tertiary amine and water produced from the system.
摘要:
An additive of the formula (1) for use in electrolytic solutions wherein A is —CH(X)— or —C═C(X)—, X being hydrogen, halogen, alkyl having 1 to 4 carbon atoms, alkoxycarbonyl having 2 to 5 carbon atoms, benzoyl or alkoxycarbonylalkyl having 3 to 9 carbon atoms, Q1 and Q2 are the same or different and are each alkyl having 1 to 6 carbon atoms, alkoxyl having 1 to 4 carbon atoms, alkoxycarbonylalkyl having 3 to 9 carbon atoms or amino having as a substituent alkyl having 1 to 4 carbon atoms, and A, Q1 and Q2 may form a ring structure.
摘要:
A crosslinking agent or a curing agent for resins, the agent containing as an active component a polyacrylic hydrazide having an average molecular weight of 10,000 to 150,000, a hydrazide conversion ratio of at least 30% and 85 or more hydrazide groups in one molecule and a polyacrylic hydrazide having an average molecular weight of 20,000 to 30,000 and 50,000 to 150,000.
摘要:
A vehicle mirror arrangement includes a base and a housing accommodating a mirror. A mechanism movably connects the mirror housing to the base. A device serves to heat the gap between the base and the mirror housing in order to melt ice which may freeze the mirror housing to the base and thus which may prevent adjustment of the orientation of the mirror housing.