Abstract: A core sample collector includes a cylinder and a piston, wherein the piston includes a piston body, upper piston rings and lower piston rings, and a sterilizing agent is held in a space defined between the piston, the cylinder, the upper piston ring and the lower piston ring. The sterilizing agent may be an antimicrobial polymeric gel. A core sample is collected by contacting the cylinder against a surface from which the core sample is to be taken, and causing relative movement between the cylinder and the piston such that: (i) the sterilizing agent is applied to the inner peripheral wall surface of the cylinder, (ii) the upper and lower piston rings scrape the sterilizing agent from the inner peripheral wall, and (iii) a core is received in the cylinder.

Abstract: Disclosed herein is a method of coring a crustal core sample, which comprises using a crustal core sampler equipped with a flow-able coating material-ejecting mechanism for ejecting a flow-able coating material, and ejecting the flow-able coating material composed of a polymer substance having a colloidal particles capturing ability by aggregating function and a water-absorbing polymer substance, from the flow-able coating material-ejecting mechanism of the crustal core sampler thereby coring a crustal core sample in a state coated with the flow-able coating material.

Abstract: A method of taking a crustal core sample, wherein the crustal core sample is obtained in a state coated with an antimicrobial polymeric gel formed of a polymer and an inorganic antimicrobial agent dispersed in the polymer. The inorganic antimicrobial agent is a compound containing at least one of silver, zinc or ions thereof. The inorganic antimicrobial agent is carried on a carrier material. The polymer forming the antimicrobial polymeric gel contains a hydrophilic group, and the antimicrobial polymeric gel contains the inorganic antimicrobial agent in a proportion of 0.0001 to 10.0 mass %.

Abstract: Disclosed herein is a method of coring a crustal core sample, which comprises using a crustal core sampler equipped with a flow-able coating material-ejecting mechanism for ejecting a flow-able coating material, and ejecting the flow-able coating material composed of a polymer substance having a colloidal particles capturing ability by aggregating function and a water-absorbing polymer substance, from the flow-able coating material-ejecting mechanism of the crustal core sampler thereby coring a crustal core sample in a state coated with the flow-able coating material.

Abstract: Disclosed herein is a core sample collector comprising a cylinder and a piston, wherein the piston is equipped with a sterilizing agent-applying mechanism and a sterilizing agent-scraping member. The piston is composed of a piston body, upper piston rings and lower piston rings, and the sterilizing agent-applying mechanism is preferably made up by holding the sterilizing agent within a space partitioned by the upper piston ring and the lower piston ring. The sterilizing agent is preferably an antimicrobial polymeric gel. A method of taking a core sample, comprising using the core sample collector is also disclosed.

Abstract: A method of taking a crustal core sample, wherein the crustal core sample is obtained in a state coated with an antimicrobial polymeric gel formed of a polymer obtained by polymerizing an antimicrobial monomer, preferably a quaternary ammonium salt compound. The polymer preferably contains a component derived from the antimicrobial monomer in a proportion of 1 to 10 mol%.

Abstract: The invention provides a method of taking a crustal core sample, wherein the crustal core sample is obtained in a state coated with antimicrobial polymeric gel formed of a polymer and an inorganic antimicrobial agent dispersed in the polymer. It is preferred that the inorganic antimicrobial agent is a compound containing at least one of silver, zinc, copper and ions thereof, the inorganic antimicrobial agent is carried onto a carrier material, the polymer forming the antimicrobial polymeric gel contains a hydrophilic group, and the antimicrobial polymeric gel contains the inorganic antimicrobial agent in a proportion of 0.0001 to 10.0 mass %.

Abstract: The invention provides a method of taking a crustal core sample, wherein the crustal core sample is obtained in a state coated with antimicrobial polymeric gel obtained by polymerizing an antimicrobial monomer. It is preferred that antimicrobial monomer is a quaternary ammonium salt compound, and the polymer contains a component derived from the antimicrobial monomer in a proportion of 1 to 10 mol %.

Abstract: Disclosed is a conjugated polymer-cation exchanger composite membrane suitable for a charge-mosaic membrane which is easily prepared and has excellent mechanical or chemical strength and good properties for charge-mosaic membrane. The composite membrane of the present invention comprises a conjugated polymer and cation exchangers dispersed therein.

Abstract: A percutaneous absorption accelerator and a percutaneous absorbent preparation containing the same and, more particularly, a percutaneous absorption accelerator containing either derivatives of specific glycerols or polyglycerols and alcohols as effective components and a percutaneous absorbent preparation containing the percutaneous absorption accelerators and pharmaceutically effective components.

Abstract: A percutaneous absorption accelerator and a precutaneous absorbent preparation containing the same and, more particularly, a percutaneous absorption accelerator containing ether derivatives of specific glycerols or polyglycerols and alcohols as effective components and a percutaneous absorbent preparation containing the percutaneous absorption accelerators and pharmaceutically effective components.

Abstract: Novel detergent composition comprises one or more of N-acyl-N-hydroxyalkylglycines of the general formula (I) or salts thereof: ##STR1## The composition has a very good resistance to hard water, low stimulativeness, and good detergency. It is thus suitably employed as shampoo for babies, kitchen detergent and the like.

Abstract: A medical composition for external application comprises a dialkyl phosphate represented by the formula: ##STR1## wherein R.sub.1 and R.sub.2 independently represent a hydrocarbon group having from 6 to 24 carbon atoms, R.sub.3 and R.sub.4 independently represent hydrocarbon group having from 2 to 6 carbon atoms, m and n independently represent a value of from 0 to 20, and x represents a hydrogen atom or a salt of an alkali metal and the like.In the presence of the dialkyl phosphate, percutaneous intake of medically active ingredients is highly enhanced. Examples of the medically active ingredients directed to in the invention include antiinflammatory agents such as ethyl aminobenzoate; adrenocortical hormones such as hydrocortisone; etc.The inventive composition is highly safe without giving any stimulation to the skin.

Abstract: A finely powdered polymer latex in the rod-like form having a major axis of from 0.1 to 100 microns and a minor axis of below 1/3 times the major axis. When the particles are dispersed in water at a concentration of 15 wt %, the thixotropy index, .eta.3/.eta.30 is not less than 1.5.The polymer powder of the above size and configuration is useful in various fields including paint binders, diagnostic means and cosmetics.The polymer latex is prepared by solubilizing a polymerizable monomer in rod-shaped micelles, and polymerizing the monomer while keeping the rod-shaped micelle structure.

Abstract: A porous sheet is disclosed that comprises a thin, flexible sheet made of thermoplastic resin having solid particles distributed therein. Small spaces are formed around the particles, such that abrasion or buffing of the opposite surfaces of the sheet causes the formation of a multitude of fine pores that extend through the sheet, making the sheet vapor-permeable but liquid-impermeable.

Abstract: An alkaline builder-free detergent composition contains a partially neutralized succinic acid derivative of the formula (1): ##STR1## wherein R is a saturated or unsaturated hydrocarbon group of 8-18 carbon atoms, and X and Y each are hydrogen, an alkali metal, ammonium or an alkanolamine, characterized in that when the composition is diluted with water thereby to give a succinic acid derivative content of 0.5 wt. %, the solution has a pH of 5.5-8.0.

Abstract: A durable anti-fogging agent composition comprises at least one sulfonic acid type amphoteric surface active agent represented by the following general formula (I): ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 each stand for an alkyl, hydroxyalkyl or benzyl group, the sum of carbon atoms of the groups R.sub.1, R.sub.2 and R.sub.3 is in the range of 16 to 38 and one of the groups R.sub.1, R.sub.2 and R.sub.3 is an alkyl or hydroxyalkyl group having at least 14 carbon atoms, and R.sub.4 stands for an alkylene or hydroxyalkylene group having 2 to 4 carbon atoms,and at least one member selected from inorganic salts and acetates represented by the general formulae MeSCN, MeNO.sub.3, MeX and MeOOCCH.sub.3 in which Me is a cation selected from Na, K, Li, NH.sub.4, 1/2Ca and 1/2Mg and X is a halogen ion.

Abstract: A detergent composition comprising a detergent system including as a main active detergent component an anionic surface active agent or a non-ionic surface active agent or both of these surface active agents, and incorporated therein, 3 to 50% by weight of a 1-hydroxyalkane-sulfate having 12 to 22 carbon atoms based on the amount of the detergent composition.