Abstract: A skin treatment composition of the present invention is an external composition for skin comprising an alkylene oxide derivative expressed by Formula (I): R1O—[(AO)m(EO)n]—R2??(I) wherein AO is an oxyalkylene group of C3 or C4; EO is an oxyethylene group; m and n are 1?m?70 and 1?n?70 respectively, wherein EO is 20˜80% by weight with respect to a total of AO and EO; each of R1 and R2 is a hydrogen or a hydrocarbon group having C1-4. The alkylene oxide derivative (I) has a moisturizing effect, a rough skin improving effect, a stickiness improving effect, and a transdermal absorption promoting effect. When a refreshing agent is used together therewith in the composition of the present invention, the refreshing effect lasts for a long time and it is excellent in feeling of use without skin stimulation.

Abstract: A method of extracting residual pesticides in an agricultural product and a kit to be used therein. Namely, a method of extracting residual pesticides which comprises: (1) a step of processing an agricultural product into a form allowing the extraction of the residual pesticides; (2) a step of treating the thus processed agricultural product with a dehydrating agent; and (3) a step of extracting the residual pesticides from the thus dehydrated agricultural product by using a hydrophobic solvent, which has an octanol/water partition coefficient (logPow) of from 0 to 4, or a mixed solvent of hydrophobic solvent and hydrophobic solvent. A kit to be used in the method as described above. By using the above method and kit, the procedure can be simplified and an effect of reducing the amount of extracted contaminants such as pigments can be established.

Abstract: The present invention is to provide a new surfactant that can be used as an emulsifier excellent in emulsion stability and texture in use and as a cleanser excellent in cleansing power and texture in use and having low skin irritation. A surfactant consisting of a compound represented by the below-described general formula (1). Y—O-(EO)l-(AO)m-(EO)n-X??(1) (In the formula, AO represents an oxyalkylene group having 3 to 4 carbon atoms; m is the average addition mole number of the oxyalkylene group and satisfies 5?m?100. EO represents an oxyethylene group; l and n are the average addition mole numbers of the oxyethylene groups and satisfy 0?l?4 and 0?n?4. Either X or Y or both are a functional group represented by —SO3M, —COOM, —HPO3M, —(CH2)q-SO3M, or —(CH2)q-COO, wherein M is a hydrogen ion or a monovalent inorganic or organic cation, and q is the number of carbon atoms of the linked alkylene group and satisfies 1?q?4.

Abstract: An object of the present invention is to provide a gel composition with an excellent gelation ability and an excellent feeling in use. The gel composition comprises (a) 0.1 to 60 mass % of a block-type alkylene oxide derivative, (b) an oil, and (c) 0.

Abstract: A method of extracting residual pesticides from livestock meat fat and a kit to be used therefor. Namely, a method of extracting residual pesticides comprising; (1) a step of homogenizing livestock meat fat, which is a solidified state, in the presence of water and then separating the fat, (2) a step of treating the thus treated fat with a dehydrating agent, and (3) a step of dissolving the dehydrated fat in a solvent in which fat is soluble, re-dissolving the pesticides in a hydrophilic solvent and then concentrating the solution of the hydrophilic solvent to give a liquid sample for measuring the residual pesticides. A kit to be used in the above-described method. Use of the above method and kit makes it possible to simplify the procedure while achieving an effect of reducing the amount of impurities (an organic acid, etc) extracted.

Abstract: A skin treatment composition that characteristically contains alkylene polyglycol dineopentanoate having a specific structure. The object is to provide a skin treatment composition that gives a refreshing sensation at the time of application and contains an oil component that is highly safe with low skin irritation. The skin treatment composition specifically contains diethyleneglycol dineopentanoate, triethyleneglycol dineopentanoate, tetraethyleneglycol dineopentanoate, dipropyleneglycol dineopentanoate, tripropyleneglycol dineopentanoate, etc. Dipropyleneglycol dineopentanoate and tripropyleneglycol dineopentanoate are particularly preferable in terms of the sensation at the time of application; they provide a skin treatment composition that is particularly superior in absorption into the skin and a sensation of permeation and highly safe.

Abstract: A one-phase microemulsion composition, which can be easily prepared without the use of special equipment, has high safety, and stays stable for a long period in an ultrafine emulsion state when the composition is added to an aqueous formulation, is provided by appropriately adjusting the ratio of (A) a hydrophilic nonionic surfactant, (B) a lipophilic nonionic surfactant, (C) an oil component, (D) a water-miscible solvent that does not interdissolve with the oil component, and the critical micelle concentration (CMC) of the hydrophilic nonionic surfactant in the water-miscible solvent is higher than that of the hydrophilic nonionic surfactant in water, and (E) water.

Abstract: A base for a skin external composition comprises, as a main ingredient, an alkylene oxide derivative represented by the following formula (I): R1O—[(AO)m(EO)n]—R2??(I) wherein AO is an oxyalkylene group having a carbon number of 3 to 4; EO is an oxyethylene group; and R1 and R2 may be the same or different, and are a hydrocarbon group having a carbon number of 1 to 4, or a hydrogen atom. The base is a water-soluble base that can exert both of the smooth feeling and the moist feeling.

Abstract: A skin treatment composition that characteristically contains alkylene polyglycol dineopentanoate having a specific structure.

Abstract: A skin treatment composition of the present invention is an external composition for skin comprising an alkylene oxide derivative expressed by Formula (I):

Abstract: An endermic liniment comprising a polyoxyethylene dicarboxylate represented by the following chemical formula (1). (In this formula, R1 and R2 are hydrogen or alkyl or branched alkyl groups having 1-4 carbon atoms, and m, n, X, and Y are integers 0-5 which are not all zero at the same time. R3 is a branched or linear chain alkylene group having 0-10 carbon atoms.) The endermic liniment of the present invention achieves superior tactile sensation during use, smoothness in particular, without a sticky sensation, while maintaining a lasting moisture retaining effect by means of blending in a humectant and a polyoxyethylene dicarboxylate.

Abstract: An endermic liniment comprising a polyoxyethylene dicarboxylate represented by the following chemical formula (1).

Abstract: Cleansing agents are provided which are highly effective for removing makeup with excellent lathering, while at the same time providing a refreshing after-shampoo feeling. These cleansing agents comprise surfactants and polyoxyalkylene carboxylic acid esters represented by the following formula (1): wherein R1 and R2 are hydrogen or straight or branched chain alkyl groups having 1 to 4 carbon atoms; m, n, X and Y are integers of from 0 to 5 but are not all concurrently 0; and R3 is a straight or branched chain alkylene group having from 0 to 10 carbon atoms.

Abstract: A magnetic head for supplying a magnetic field in recording an. information signal to a recording medium is provided. This magnetic head has a substantially. prism-shaped magnetic core portion having a distal end portion cut out to form a step, the magnetic core portion being form so that the cross-sectional area of the distal end portion is smaller than the cross-sectional area of a proximal end portion, and a coil wound on the outer circumferential surface of the magnetic core portion, wherein the length of one side of the distal end portion is not less than 0.3 mm and not more than 0.45 mm, and the length of the other side orthogonal to the one side is not less than 0.4 mm and not more than 0.55 mm.

Abstract: A magnetic head for supplying a magnetic field in recording an information signal to a recording medium is provided. This magnetic head has a substantially prism-shaped magnetic core portion having a distal end portion cut out to form a step, the magnetic core portion being form so that the cross-sectional area of the distal end portion is smaller than the cross-sectional area of a proximal end portion, and a coil wound on the outer circumferential surface of the magnetic core portion, wherein the length of one side of the distal end portion is not less than 0.3 mm and not more than 0.45 mm, and the length of the other side orthogonal to the one side is not less than 0.4 mm and not more than 0.55 mm.

Abstract: Cleansing agents are provided which are highly effective for removing makeup with excellent lathering, while at the same time providing a refreshing after-shampoo feeling.

Abstract: An error voltage which includes serious fluctuation due to noise is applied to a LPF, and high frequency component due to noise is removed. The error voltage supplied through the LPF and a reference level, for example, 0-level voltage are supplied to a comparator. The comparator compares magnitude of theses two voltage each other, and outputs a signal which indicates polarity corresponding to the comparison result. As described herein above, by removing high frequency component included in the error voltage to be supplied to the comparator with the LPF, the polarity signal with reduced fluctuation due to noise and good quality can be obtained. Thus the polarity of an error voltage for controlling rotation of a disc can be judged correctly.

Abstract: The present invention relates to a recording medium recorded with audio data and general data (including image data for computers and character data) mixed together, provided with data for each control region, where by providing a special simple control region, editing of complicated control regions does not have to be carried out and a memory region is not necessary as a working region for editing.The present invention also provides a playback device where playback can be achieved without mixing the simple control region with the control region for the audio and general data and, by also recording copy-protection information at the simple control region, a playback operation from a recording medium which has been copied illegally will not be possible.The present invention further relates to a recording device a recording device for updating each control region while data updating is being carried out at the recording medium.

Abstract: A recording medium has a user recordable area in which two types of information may be recorded, such as audio data and user data, and a control area having a first area for management information regarding the first type of information and a second area for management information regarding the second type of information. A reproducing apparatus uses the first management information to reproduce the first type of information and to avoid reproducing the second type of information as the first type of information, and uses the second management information to reproduce the second type of information and to avoid reproducing the first type of information as the second type of information. A recording apparatus generates the first management information when the first type of information is recorded and generates the second management information when the second type of information is recorded.