Japan Exlan Co.

Higashimurayama-shi, Japan

Japan Exlan Co.

Higashimurayama-shi, Japan

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Kainuma S.,Kyushu University | Utsunomiya K.,Kyushu University | Ishihara S.,Mitsui Engineering and Shipbuilding Co. | Uchida D.,Structural Design Section | And 2 more authors.
Zairyo to Kankyo/ Corrosion Engineering | Year: 2013

In authors previous research, an anticorrosive method with sacrificial anode for steel members in atmospheric environment was proposed. In this method, porous sintered Al-Zn plate was applied as sacrificial anode materials. In addition to this, chemical fiber sheet was applied as the material which has functions of continual water absorption and retention needed for sacrificial anode reaction. The object of this research is to clarify the influences of mixing and porosity ratios of the sintered plate and property of the fiber sheet on the anticorrosive effects and to investigate applicability of the anticorrosive method in various atmospheric environments. Electro-chemical tests using the sintered plate and material property tests using the fiber sheet were carried out. Moreover, atmospheric exposure tests were also conducted on the model specimens composed of the steel plate, the fiber sheet and the sintered plate. The results showed that the anticorrosive method seems to be applicable in atmospheric environments by controlling the anticorrosive effect and consumption of anode materials by putting various kinds of the sintered plate and the fiber sheet together.


Matsubara T.,Japan Exlan Company | Gofuku A.,Okayama University
Transactions of the Atomic Energy Society of Japan | Year: 2012

Up to now, few studies have been devoted to investigate all the steps from the creation to the application of operation manuals and to consider human factors of operators in order to prevent the troubles caused by the problems of operation manuals. This paper deals with the steps and the human factors. It this study, the troubles caused by the problems are examined and the causes of these troubles are investigated. Here, the general procedure for creating an operation manual from the experiences of authors to create some operation manuals is first summarized and the method of analyzing the tendency of troubles and their causes is considered. From this consideration, it is concluded that there are several steps that cause a trouble in the creation of operation manuals and it is necessary to analyze the causes of a trouble from the viewpoints of creators and operators of operation manuals. Next, in this study, the troubles reported in Nuclear Information Archives (NUCIA) as an example of real trouble data bases are analyzed, a list of trouble causes related to the problems of operation manuals is made, and using this list, the causes of troubles reported in NUCIA are categorized. From analysis results, it is concluded that there are some steps that cause troubles in creating operation manuals, that the creation of a checklist and the description of necessary information are sometimes missing, and that operators take operations following operation manuals but sometimes do not understand the contents of operation manuals and/or have little knowledge for operations. © 2012 Atomic Energy Society of Japan All Rights Reserved.


In the prior art, there has not been provided a fiber that can quickly and persistently deodorize and absorb the smell and the damp feeling due to body fluid generated from the body. The present invention provides a fiber having such property, and specifically provides a moisture-absorbing and deodorizing fiber, characterized in that, a basic polymer is ionically-bonded in an amount of 0.2 to 4 mmol/g as an amount of amino group onto the surface of a moisture-absorbing fiber having a crosslinked structure and also having 3 to 8 mmol/g of carboxyl group.


Patent
Japan Exlan Co. | Date: 2010-10-27

The present invention is an antistatic acrylic fiber which comprises 90 to 99% by weight of acrylonitrile polymer containing 80 to 100% by weight of acrylonitrile as a constituting component and 10 to 1% by weight of acrylic antistatic resin containing 10 to 70% by weight of acrylonitrile as a constituting component, characterized in that alkali metal ion is contained in an amount of not less than 150 ppm to the fiber. The acrylic fiber of the present invention has antistatic property which does not lower so much even if the fiber is subjected to a spinning and dyeing step.


In the prior art, there has not been provided a fiber that can quickly and persistently deodorize and absorb the smell and the damp feeling due to body fluid generated from the body. The present invention provides a fiber having such property, and specifically provides a moisture-absorbing and deodorizing fiber, characterized in that, a basic polymer is ionically-bonded in an amount of 0.2 to 4 mmol/g as an amount of amino group onto the surface of a moisture-absorbing fiber having a crosslinked structure and also having 3 to 8 mmol/g of carboxyl group.


Patent
JAPAN EXLAN COMPANY Ltd | Date: 2011-06-01

The present invention provides a cross-linked acrylate fiber having the color causing no unusual sense in the appearance even when used together with other fibers for industrial materials in the field of industrial materials which has not been provided in the prior art and also being advantageous in terms of the cost. A cross-linked acrylate fiber having a color where L* is 60 to 75, a* is 5.0 to 14.5 and b* is 23.0 to 30.0 in accordance with the expression method stipulated by JIS-Z-8729 can be manufactured according to such a manner that each of the treatments of (a) treatment for introduction of cross-linking by a hydrazine compound, (b) treatment by a peroxide and (c) hydrolyzing treatment using an alkaline metal compound are applied in the order of (a), (b) and (c) or in such an order that, after (a) is applied, (b) and (c) are then applied together. The present invention can achieve both of the high flame resisting property and the high speed of moisture absorption/desorption by using magnesium ion as the counter ion for at least a part of carboxyl groups in the cross-linked acrylate fiber.


Patent
JAPAN EXLAN COMPANY Ltd | Date: 2012-05-30

The conventional crosslinked acrylic acid fiber has such characteristics that the harmonic functions such as pH buffer property, antistatic property and water-holding property and also high moisture-absorption rate, high moisture-absorption velocity, high moisture-absorption rate difference or temperature adjusting and humidity adjusting functions derived therefrom, but there is still a problem for its dyeing property. The present invention provides a fiber having the above characteristics and making a practical dyeing with an acid dye possible. To be more specific, the present invention provides a moisture-absorptive fiber dyeable with an acid dye, comprising a region of a polymer having a functional group acting as a dyeing site for acid dye and a region of a polymer having a crosslinked structure and a carboxyl group, wherein the saturation dye uptake of the acid dye to the fiber weight is 3.5 to 10% by weight and the carboxyl group content is 1.0 to 10 mmol/g.


Patent
JAPAN EXLAN COMPANY Ltd and Toyobo Co. | Date: 2012-06-29

The present invention provides padding which is suitable as bedding and clothing items having both exothermic property upon moisture absorption and bulkiness in high levels and being able to give comfortable environment to human body. The present invention relates to a padding containing 25 to 85% by weight of polyester fiber, characterized in that the padding contains 15 to 75% by weight of a cross-linked polyacrylate fiber of a magnesium salt type and/or a calcium salt type.


Patent
Toyobo Co. and Japan Exlan Company Ltd | Date: 2014-05-07

The present invention provides padding which is suitable as bedding and clothing items having both exothermic property upon moisture absorption and bulkiness in high levels and being able to give comfortable environment to human body. The present invention relates to a padding containing 25 to 85% by weight of polyester fiber, characterized in that the padding contains 15 to 75% by weight of a cross-linked polyacrylate fiber of a magnesium salt type and/or a calcium salt type.


Ema T.,Okayama University | Komiyama T.,Japan Exlan Co. | Sunami S.,Okayama University | Sakai T.,Okayama University
RSC Advances | Year: 2014

The simultaneous addition of 40% tetrabutylammonium hydroxide (TBAH) and crown ether (18-crown-6) promptly produced a clear aqueous solution of cellulose (10 wt%) at room temperature. © 2014 The Royal Society of Chemistry.

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