★★★ ＜第32回知的財産翻訳検定試験【第17回和文英訳】＞ ★★★
≪１級課題 -化学-≫【問 1】
BACKGROUND ART[0002]Engineering plastics such as thermoplastic resins, particularly PBT, ABS,and nylon resins, are widely used for electric and electronic components,
automobile components and the like. In electronics-related components andthe like, blending metal fibers with various resins to produce
electromagnetic shielding materials has recently been studied to prevent
interference from electromagnetic waves and the like, and PBT resins andsimilar resins are also expected to be used, while taking advantage ofadvantageous thermal stability, for applications where electromagnetic
shielding properties are required, such as automobile electric and electronic
components that are exposed to high-temperature and low-temperatureenvironments. As a result of evaluation by the present inventors of the
conductivity of metal fiber-blended resins produced by blending various
metal fibers with thermoplastic resins, however, it has been found that,
although the metal fiber-blended resins have excellent conductivity in an
early stage, exposure to repeated high-temperature and low-temperaturethermal shock leads to a deterioration in electromagnetic shielding
properties. The results show that, in view of the situation that thesematerials are exposed to high-temperature, low-temperature, or otherenvironments under various practical conditions, difficulties are encounteredin successfully using such materials in practical use. Accordingly, it has
been desired to provide electromagnetic shielding materials that can solve
this problem and utilize the excellent properties inherent in thethermoplastic resins.

【問 2】[0014] Aluminum alloys, particularly alloys called heat-treatable alloys, arecommonly subjected to heat treatment, such as solution treatment and aging
treatment, typified by T6-treatment to improve properties such as strength.
Precipitates produced by the aging treatment and crystallized products

produced during casting include substances such as those that are dissolvedin a treatment liquid used in anodization treatment and substances that areinsoluble in the treatment liquid, which emerge as intermetallic compounds
and/or metallic elements having electrical conductivity. From the above,
the following can be expected. Before anodization treatment, a material inwhich precipitates and/or crystallized products are sufficiently present isprepared by performing heat treatment, such as solution treatment andaging treatment, or by adjusting casting conditions. This material is thensubjected to preliminary treatment, such as etching, so that precipitates andthe like are present on a surface layer of the material. Then, when thismaterial is subjected to the anodization treatment, the precipitates and/orcrystallized products on the surface layer are dissolved or no anodized layer
is formed on the precipitates or the crystallized products. Accordingly, ananodized layer having through-holes extending to a base metal can beformed.

【問 3】
The present invention will be described in more detail with reference to thefollowing Examples.
Chemical compositions of various steel materials including comparative
samples are illustrated in Table 1. Samples A, B, and C are steels of thepresent invention, and Samples D to F are comparative steels.
For the heat treatment of the samples, Samples A to D were held at 820°C
for 22 hr and then cooled with water, followed by tempering at 600°C for 40
hr.
Samples E and F were tempered twice for complete transformation of theresidual austenite at first tempering and the provision of good mechanicalproperties at second tempering, because, when the chromium content is notless than 1%, austenite is not completely transformed into a martensitic
texture at 840°C.
That is, the Cr content should be brought to not more than 0.4% for atemperature rise of not more than 5°C in FATT. In particular, it has been

elucidated that embrittlement hardly occurs at a Cr content of not more than0.25%.
Since it was found in the test that embrittlement hardly occurs, in particular,
at a Cr content of not more than 0.25%, the degree of actual embrittlement
over a long period of time was examined by a constant-temperatureembrittlement test.

【問 4】
Claim 1
An immunochromatographic test kit comprising first and second reagentsthat immunologically react with an analyte and a membrane carrier,wherein the first reagent is pre-fixed at a predetermined position on themembrane carrier to form a capturing site that captures the analyte to beanalyzed, and the second reagent is preliminarily labelled with a metal
colloidal particle on which a platinum colloid is supported and is disposed on
the membrane carrier so as to be spaced apart from the capturing site so thatchromatographic development can be performed.
Claim 2The immunochromatographic test kit according to claim 1, further
comprising a copper ion containing a sensitizer solution to be brought into
contact with the capturing site after the chromatographic development,
thereby reducing the copper ion and precipitating copper on the metal
colloidal particle.
Claim 3The immunochromatographic test kit according to claim 2, further
comprising a protective layer-forming liquid to be brought into contact withand to coat the precipitated copper portion.
Claim 4The immunochromatographic test kit according to claim 2 or 3, wherein thesensitizer solution comprises copper sulfate and a reducing agent.
Claim 5The immunochromatographic test kit according to claim 3 or 4, wherein theprotective layer-forming liquid comprises glycerol or a derivative thereof.