Abstract: A heat exchanger having a polyamine on at least part of a surface of the heat exchanger. The existence of polyamine on the surface of the heat exchanger allows the odor components to be temporality held by virtue of the action of polyamine, and the odor components are not released into an interior room or the like at once in conjunction with the evaporation of free water (such as condensed water). Thus, the release of odor components is made moderate, and changes in the concentration of odor components in the interior room are reduced, so that strong odors sensed by people are suppressed. A typical example of the polyamine is PEI, and a typical example of the heat exchanger is an evaporator used in a car air-conditioner.

Abstract: An object of the present invention is to provide an activated blood coagulation factor X (FXa) inhibitor that reduces the risk of bleeding caused by the treatment of thromboembolism. The present invention provides an oral anticoagulant agent comprising a compound represented by the following formula (1): or a pharmacologically acceptable salt thereof, or a hydrate thereof, as an active ingredient, wherein (A) a factor involved in the risk of bleeding caused by the anticoagulant agent is selected as a dose determinant; (B) a reference value of the dose determinant is set; (C) the dose determinant of a patient in need of administration is measured; and (D) the dose of the anticoagulant agent is selected with the reference value as an index.

Abstract: A method of surface treating an aluminum alloy base body of an heat exchanger which method enables an etching procedure to be carried out uniformly and quickly and a corrosion-resistant chemical conversion coating to be formed, is effected by pretreating the Al heat exchanger base body with an aqueous pre-treating liquid having a pH of 9.0 or less, etching the pretreated base body with an aqueous alkaline solution having a pH of 9.0 or more, and then subjecting the etched base body to a chemical conversion treatment or a hydrophilicity-enhancing treatment.

Abstract: The purpose of the present invention is to provide an acrylic pressure sensitive adhesive and a pressure sensitive adhesive tape preferable to be used for adhesion and fixation of members to be used in closed space of such as a vehicle, a housing where odors become a problem; or in the side of electronic appliances where volatile gases become a problem and also relates to a vehicular air conditioner unit produced by using them. The present invention relates to an acrylic pressure sensitive adhesive, which has 500 ppm or lower of volatile component concentration A calculated by the following equation (1), when the acrylic pressure sensitive adhesive is heated at 90° C. for 30 minutes: volatile component concentration A (ppm)=volatile component content X (?g)/pressure sensitive adhesive weight Z (g) before heating ??(1) in the equation (1), the volatile component content X is an amount measured by conversion into toluene.

Abstract: The purpose of the present invention is to provide an acrylic pressure sensitive adhesive and a pressure sensitive adhesive tape preferable to be used for adhesion and fixation of members to be used in closed space of such as a vehicle, a housing where odors become a problem; or in the side of electronic appliances where volatile gases become a problem and also relates to a vehicular air conditioner unit produced by using them. The present invention relates to an acrylic pressure sensitive adhesive, which has 500 ppm or lower of volatile component concentration A calculated by the following equation (1), when the acrylic pressure sensitive adhesive is heated at 90° C. for 30 minutes: volatile component concentration A (ppm)=volatile component content X (?g)/pressure sensitive adhesive weight Z (g) before heating ??(1) in the equation (1), the volatile component content X is an amount measured by conversion into toluene.

Abstract: A method of surface treating an aluminum alloy base body of an heat exchanger which method enables an etching procedure to be carried out uniformly and quickly and a corrosion-resistant chemical conversion coating to be formed, is effected by pretreating the Al heat exchanger base body with an aqueous pre-treating liquid having a pH of 9.0 or less, etching the pretreated base body with an aqueous alkaline solution having a pH of 9.0 or more, and then subjecting the etched base body to a chemical conversion treatment or a hydrophilicity-enhancing treatment.

Abstract: A sealing material for air-conditioners is made from a polyurethane foam produced from material components containing a polyol, an isocyanate, from 1 to 25 parts by weight of an antiozonant per 100 parts by weight of the polyol, a catalyst, and an antioxidant, wherein the antioxidant, an antioxidant used in synthesizing the polyol, and the antiozonant each have a molecular weight not lower than a certain level.

Abstract: A polyurethane foam is produced by mixing a polyol, an isocyanate, a catalyst, and an antioxidant, wherein the antioxidant and an antioxidant used in synthesizing the polyol each are a high-molecular compound having a number-average molecular weight not lower than a certain level, and the amount of volatile organic compounds emitted from the polyurethane foam is thus reduced.

Abstract: An aluminum alloy heat exchanger having excellent hydrophilicity and resistance to absorption or impregnation of tobacco odorous components has an organic hydrophilic coating layer formed on at least a portion of a base body of the heat exchanger and containing (A) at least one chitosan compound, (B) at least one two or more carboxyl group-containing organic compound and (C) at least one hydrophilic polymeric substance different from the components (A) and (B), in which the total solid content of components (A) and (B) is 20 mass % or more and the solid content of component (C) is 0.1 to 10 mass %.

Abstract: An aluminum alloy heat exchanger resistive to impregnation of tobacco odor includes a base body of an aluminum alloy heat exchanger and an organic hydrophilic coating layer formed on the surface of the heat exchanger base body, and including a component (A) containing a chitosan compound selected from chitosan and derivatives thereof, and a component (B) containing a carboxylic compound having two or more carboxyl groups per molecule thereof, in a total solid amount of the components (A) and (B) of 20% by mass or more, based on the total amount by mass of the organic hydrophilic coating layer.

Abstract: A hydrophilic modification method comprising a step of forming a coat having a solid coat amount of 0.02 to 3 g/m2 on a heat exchanger with a modifier for hydrophilicity after treatment for rust prevention thereof wherein said modifier for hydrophilicity comprises a modified polyvinyl alcohol (A) having, on a side chain thereof, a group represented by the formula (I): in the formula, n represents an integer of 1 to 500, R1 represents a hydrogen atom or an alkyl group containing 1 to 4 carbon atoms, and R2 represents a hydrogen atom or a methyl group, and at least one member (B) selected from the group consisting of phosphorus compound salts and boron compound salts of Ca, Al, Mg, Fe and Zn, said group represented by the formula (I) accounting for 0.01 to 20 mole percent relative to hydroxyl and acetoxy groups contained in said modified polyvinyl alcohol.

Abstract: An aluminum alloy heat exchanger having excellent hydrophilicity and resistance to absorption or impregnation of tobacco odorous components has an organic hydrophilic coating layer formed on at least a portion of a base body of the heat exchanger and containing (A) at least one chitosan compound, (B) at least one two or more carboxyl group-containing organic compound and (C) at least one hydrophilic polymeric substance different from the components (A) and (B), in which the total solid content of components (A) and (B) is 20 mass % or more and the solid content of component (C) is 0.1 to 10 mass %.

Abstract: A hydrophilic modification method comprising

Abstract: An aluminum alloy heat exchanger resistive to impregnation of tobacco odor includes a base body of an aluminum alloy heat exchanger and an organic hydrophilic coating layer formed on the surface of the heat exchanger base body, and including a component (A) containing a chitosan compound selected from chitosan and derivatives thereof, and a component (B) containing a carboxylic compound having two or more carboxyl groups per molecule thereof, in a total solid amount of the components (A) and (B) of 20% by mass or more, based on the total amount by mass of the organic hydrophilic coating layer.