Hitachi Cable, Inc.

Nissan Motor Company Limited

Hitachi Metals, Ltd.

Jeol Ltd.

Yasuaki Yamamoto

Hiroo Kusano

Etsuo Fukuchi

Hideki Yagyu

Tomihito Hashimoto

Tomohito Ota

Hajime Nishi

Takanori Murano

Masami Sorimachi

Akihiro Hori

Hiroaki Tsukada

Characteristic X-rays (soft X-rays) from a sample are detected using a spectroscope to thereby generate a plurality of intensity spectrums arranged in order of time sequence. A contour map creation unit creates a contour map by converting, in accordance with a color conversion condition, the plurality of intensity spectrums into a plurality of one-dimensional maps, and arranging the plurality of one-dimensional maps in order of time sequence. When displaying the contour map, a waveform array and a difference contour map may also be displayed. Based on the contour map, a timepoint at which a state change occurs in the sample is determined.

Sample analysis apparatus and method

A modified fluorocarbon resin composition and a modified molded product of fluorocarbon resin composition having an excellent abrasion resistivity and low friction property under high pressure, are provided. The modified fluorocarbon resin composition comprises a blend of fluorocarbon resin and aromatic engineering plastic, which is modified by irradiation of ionizing radiation.

Modified fluorocarbon resin composition and molded products

A seal ring () of the present invention seals operating oil hermetically and is attached to an annular seal ring groove () provided on an outer circumference of a shaft member (). The seal ring () includes fluororesin, modified fluororesin formed by being irradiated with an ionizing radiation in a range from 1 kGy to 10 MGy inclusive in a state of being heated up to a melting point thereof or higher under an inert gas atmosphere with an oxygen partial pressure of 1.33 kPa or less, and synthetic resin having a surface energy ranging from +0 N/cm to 20&#x2dc;10&#x2212;5 N/cm inclusive of that of the operating oil.

Seal ring and seal device

Unmodified fluororesin, modified fluororesin and mica are mixed to provide a modified fluororesin composition. The modified fluororesin composition is molded into a molded article having a predetermined shape. The modified fluororesin composition and the modified fluororesin composition molded article have excellent abrasion resistance in the water and hold original good properties of the fluororesin.

Modified fluororesin composition and modified fluororesin molded article

A modified fluoroplastic composition contains a first unmodified fluoroplastic prepared by applying ionizing radiation to the fluoroplastic heated at the melting point or a higher temperature under an inert gas atmosphere, a second unmodified fluoroplastic, and a polyamide-imide resin.

Modified fluoroplastic composition and modified fluoroplastic molded article

A seal ring seals operating oil hermetically and is attached to an annular seal ring groove provided on an outer circumference of a shaft member. The seal ring comprises fluororesin, metal powder having a hardness equal to or more than that of any of a side surface of the seal ring groove serving as a sliding partner and an inner circumferential surface of a housing engaged relatively rotatable with the outer circumference of the shaft member, and modified fluororesin formed by irradiating an ionizing radiation in a range from 1 kGy to 10 MGy inclusive in a state of being heated up to a melting point thereof or higher under an inert gas atmosphere with an oxygen partial pressure of 1.33 kPa or less.

A fluororesin heated at a temperature at or above the melting point of the resin is exposed in an inert gas atmosphere having an oxygen concentration of not more than 10 Torr to an ionizing radiation at a radiation dose of 0.1 kGy to 10 MGy to prepare a crosslinked fluororesin. The crosslinked fluororesin is exposed to an ionizing radiation at a radiation dose of 10 kGy to 5 MGy, and is then brought into contact with a functional group-containing organic compound to cause a graft reaction. By virtue of this constitution, a modified fluororesin is provided which has satisfactory mechanical strength and, at the same time, has, imparted thereto, for example, ion-exchange capacity, hydrophilicity, adhesive property, or abrasion resistance.

Modified fluororesin and process for producing the same

A fluoroplastic-based product having reduced friction and improved abrasion resistance having excellent abrasion resistance as well as good characteristics being inherent to fluoroplastics comprises a fluoroplastic molded material containing a modified fluoroplastic prepared by applying ionizing radiation to a fluoroplastic (I) heated at the melting point or a higher temperature under an inert gas atmosphere having 10 torr or less oxygen concentration within a range of irradiation doses of from 1 KGy to 10 MGy; and an unmodified fluoroplastic (II).

Product having reduced friction and improved abrasion resistance

A flame retardant electrical insulating composition having an antifungal action comprises 100 parts by weight of a polyolefin, 50-300 parts by weight of a metal hydroxide, and at least 0.2 parts by weight of an amine compound. Also, a flame retardant electrical insulating composition having an antifungal action comprises 100 parts by weight of an ethylene-vinyl acetate copolymer with a vinyl acetate content of at least 20 wt % or an ethylene-ethyl acrylate copolymer with an ethyl acrylate content of at least 20 wt %, 50-300 parts by weight of a metal hydroxide, at least 0.2 parts by weight of an amine compound, and at least 0.5 parts by weight of a hydroxyl group containing lubricant.

Growing community of inventors

Tokyo, Japan

Yasuaki Yamamoto