Abstract: According to the method of the invention, it is possible to separate and selectively remove alkyltetralins coexisting in a small amount in a LAB mixture which is an intermediate raw material for surfactants for detergents, the method conveniently being carried out in a continuous manner using a solid adsorbent.

Abstract: An extended frame memory is provided in parallel with a frame memory, and tomographic images having a number required for computing the cubage of a part to be ultrasonically scanned are stored in the extended frame memory. Thereafter, the thus stored tomographic images are successively read out, and sectional areas are computed from the stored tomographic images. Then, the cubage of the part to be ultrasonically scanned of an examinee is calculated from the thus computed sectional areas. The computation of the cubage is conducted after the tomographic images having a number required for the computation of the cubage are stored in the extended frame memory, thereby it is possible to reduce the burden to the examinee.

Abstract: A process for stabilizing a composition containing an anionic surfactant by using a cationized xanthan gum, a stabilizer for the composition containing an anionic surfactant which contains a cationized xanthan gum as a component, and a anionic surfactant-containing composition stabilized by inclusion of a cationized xanthan gum.

Abstract: A method of sealing the nose a packaging flat tube band after opening thereof. The method comprises separately adsorbing the upper and lower films and separating these films away from each other thereby to open the nose, charging a matter to be packaged through the opened nose in the horizontal direction, welding the tube band at both sides of the packaged matter transversely, and cutting the portion of the flat the tube band adjacent to the feed side. These steps are repeatedly to sucessively seal the nose of the packaging flat tube band. Disclosed also is an apparatus suitable for carrying out this nose sealing method.

Abstract: A film strip of a thermoplastic synthetic resin, as a bag or package material, is continuously supplied, from an extruder to a printing machine, bag-making machine, packaging machine or like machine. In the apparatus, the material film strip supplied from the extruder at the initial stage of operation thereof, is first led to and wound by a winder, and then fed to such machine. A switching mechanism is provided for shifting the strip from one travel course to another.

Abstract: A film strip of a thermoplastic synthetic resin, as a bag or package material, is continuously supplied from an extruder to a printing machine, bag-making machine, packaging machine, or like machine.The material film strip supplied from the extruder at the initial stage of operation thereof is first led to and wound by a winder means, and then fed to such machine. The apparatus is provided with means for shifting the strip from one travel course to another.