Jfe Steel Corporation

Kawasaki Steel Corporation

Toagosei Chemical Industry, Co., Ltd.

K-plasheet Corporation

Kawasaki Steel Corporation Sumitomo Chemical Co., Ltd.

Tadahiro Wakui

Masatoshi Shinozaki

Tomoshige Ono

Yoshihiro Matsumoto

Yasunobu Uchida

Toru Uno

Toshio Okuyama

Toshiro Hirose

Takashi Kawano

Yukiko Ozaki

Shigeru Unami

Satoru Funakoshi

Yuji Kobayashi

Kyoko Fujimoto

Shigeru Takano

Yuichi Uchida

Syohei Masui

Masashi Fujinaga

Katsuhiro Nagayama

Seiji Hanatani

Toshio Maetani

Masafumi Komatsu

Hiroyuki Yoshitake

Masami Fujimaki

Taiji Matsumoto

Kunihiko Eguchi

Yukio Nagashima

Mitsuaki Sunada

An iron-based powder for powder metallurgy effectively prevents agglomeration of a lubricant, has excellent flowability, can evenly fill thin-walled cavities, keeps the ejection force after formation low, and does not lower sintered body strength by adhering either or both of an alloy component and a cutting ability improving agent to the surface of iron powder with a binder that has a melting point of 150&#xb0; C. or lower, adhering carbon black to the surface of the binder, and setting the amount of free binder to 0.02 mass % or less.

Iron-based powder for powder metallurgy

Flowability-improving particles are adhered to surfaces of iron powder through a binder to provide an iron-based powder for powder metallurgy which has excellent flowability and which is capable of uniformly filling a thin-walled cavity and compaction with high performance of ejection force.

In an iron-based powder, 0.01% to 5.0% by mass of a flaky powder having an average particle size of longitudinal size of 100 or less, a thickness of 10 &#x3bc;m or less, and an aspect ratio (longitudinal size-to-thickness ratio) of 5 or more with respect to the iron-based mixed powder is contained, whereby the flowability of an iron-based mixed powder is increased, the density of a green compact is increased, and ejection force is greatly reduced after compaction, thereby accomplishing an increase in product quality and a reduction in production cost.

Iron-based mixed powder for powder metallurgy

Flowability-improving particles containing 50 to 100% by mass of carbon black are adhered to surfaces of iron powder through a binder to provide an iron-based powder for powder metallurgy which has excellent flowability and which is capable of uniformly filling a thin-walled cavity, compaction with high ejection force, and maintaining sufficient strength of a sintered body in subsequent sintering.

Paper-made stampable sheet, light-weight stampable sheet shaped body and

A glass fiber reinforced polymer which excels in mechanical properties and is suitable for use in a large-sized structural members, formed from a dispersion liquid by dispersing reinforcement glass fibers and particulate thermoplastic resin in a surfactant-containing aqueous medium in which bubbles of air are dispersed, forming a sheet-like web on a porous support plate, and applying heat and pressure to form a sheet. The reinforcement glass fibers include a silane coupling agent while the matrix resin has functional groups bonded to the silane coupling agent. The concentration of said functional groups is higher in the regions adjacent the surfaces of said reinforcement glass fibers than in regions farther removed therefrom, and said concentration progressively decreases in the direction away from said reinforcement glass fibers.

Stampable glass fiber reinforced thermoplastic resin and method of

A resin composition for a composite-type vibration-damping material which comprises a saturated copolyester having a weight average molecular weight of at least 10,000 and a softening point of 50.degree. to 150.degree. C. and a polyfunctional isocyanate compound as a cross-linking agent and which, when cross-linked, has a degree of gelation (degree of cross-linking) of at least 10% and a composite-type vibration-damping material produced by use of the resin composition, have excellent adhesive strength and formability. When the resin composition is admixed with a conductive substance, a vibration-damping material produced by use of the admixture has excellent spot-weldability in addition to the above-mentioned excellent properties.

Resin composition for composite-type vibration-damping material,

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Chiba, Japan

Tomoshige Ono