Zeon Corporation

Nec Corporation

Oval Engineering Co., Ltd.

Dowa Metals & Mining Co., Ltd.

Oriental Photo Industrial Co., Ltd.

Akira Tsukada

Hiroyasu Nagamori

Shigeru Fujita

Kazuhiro Ejiri

Chikara Katano

Tadashi Nakamura

Yoshihisa Takeyama

Kiyonori Umetsu

Takafumi Kawanaka

Hiroyuki Kotsuji

Yukio Takegawa

Yuzuru Nakamura

Nobuaki Kita

Tetuya Higuchi

Atsushi Komori

Hitoshi Aosaki

Shigeru Ogasawara

An attachment instrument for an electronic device () includes a first angle adjustment part () configured to adjust an orientation of an antenna included in the electronic device () by two arc-shaped long holes () formed in a plane and two axes () moving inside the two long (), respectively. The first angle adjustment part () makes the adjustment by the axis () inside one of the long holes () being fixed and the axis () inside the other one of the long holes () being allowed to move.

Attachment instrument for electronic devices, angle adjusting method, and communication apparatus

A nitrile copolymer rubber composition including a nitrile copolymer rubber (A) containing 35 to 80 wt % of &#x3b1;,&#x3b2;-ethylenically unsaturated nitrile monomer units (a1), 19.5 to 64.5 wt % of conjugated diene monomer units (a2), and 0.5 to 20 wt % of &#x3b1;,&#x3b2;-ethylenically unsaturated carboxylic acid monomer units (a3) and an inorganic filler (B) with an aspect ratio of 30 to 2,000, wherein a content of the inorganic filler (B) with respect to 100 parts by weight of the nitrile copolymer rubber (A) is 1 to 200 parts by weight is provided.

Nitrile copolymer rubber composition

A cross-linked rubber product for a fuel seal is obtained by cross-linking a nitrile rubber composition including a nitrile rubber (A) containing 25 to 80% by weight of &#x3b1;,&#x3b2;-ethylenically unsaturated nitrile monomer units (a1), 20 to 75% by weight of conjugated diene monomer units (a2), and 0 to 30% by weight of cationic monomer units and/or monomer units capable of forming a cation (a3), and having a compression set ratio of 20% or less after being compressed in an atmosphere of 100&#xb0; C. for 70 hours, and an inorganic filler (B) having an aspect ratio of 30 to 2,000. The content of the inorganic filler (B) is from 1 to 200 parts by weight with respect to 100 parts by weight of the nitrile rubber (A). The cross-linked rubber product is obtained by subjecting the nitrile rubber composition to secondary vulcanization at 100 to 150&#xb0; C. for 1 to 24 hours.

Cross-linked rubber product

A nitrile copolymer rubber composition containing a nitrile copolymer rubber (A) which contains &#x3b1;,&#x3b2;-ethylenically unsaturated nitrile monomer units (a1) 15 to 80 wt %, conjugated diene monomer units (a2) 20 to 85 wt %, and cationic monomer units and/or monomer units able to form cations (a3) 0 to 30 wt %, and flat cellulose particles (B) with an aspect ratio of 30 to 600, wherein a content of the flat cellulose particles (B) is 1 to 200 parts by weight with respect to 100 parts by weight of the nitrile copolymer rubber (A) is provided.

A nitrile copolymer latex composition containing a latex of a nitrile copolymer rubber (A) having &#x3b1;,&#x3b2;-ethylenically unsaturated nitrile monomer units in 10 to 75 wt %, conjugated diene monomer units in 5 to 89.9 wt %, and cationic monomer units and/or monomer units able to form cations in 0.1 to 20 wt %, an inorganic filler (B) having an aspect ratio of 30 to 2,000, and a plasticizer (C) having an SP value by the HOY method of 8 to 10.2 (cal/cm), wherein a content of said plasticizer (C) is 0.1 to 200 parts by weight with respect to said nitrile copolymer rubber (A) as 100 parts by weight is provided.

Nitrile copolymer latex composition and nitrile copolymer rubber composition

A crosslinkable rubber composition comprising 0.2 to 10 parts by weight of an aromatic secondary amine-based anti-aging agent and 0.5 to 20 parts by weight of a polyamine-based crosslinking agent with respect to 100 parts by weight of a nitrile rubber including an &#x3b1;,&#x3b2;-ethylenically unsaturated nitrile unit and an &#x3b1;,&#x3b2;-ethylenically unsaturated dicarboxylic acid monoester unit, and with iodine value of 120 or less. The present invention can provide a crosslinkable rubber composition, providable of a cross-linked rubber excellent in a variety of properties such as mechanical strength and small in compression set, and a cross-linked rubber obtained by cross-linking the rubber composition.

Crosslinkable rubber composition and cross-linked rubber

A nitrile group-containing copolymer rubber comprising 10 to 40 wt % of &#x3b1;,&#x3b2;-ethylenically unsaturated nitrile unit (a), 10 to 60 wt % of &#x3b1;,&#x3b2;-ethylenically unsaturated carboxylic acid ester unit (b), and 20 to 70 wt % in total of conjugated diene unit (c) and saturated conjugated diene unit (d), wherein a content ratio 'x' of a conjugated diene unit (c) based on the total content of said conjugated diene unit (c) and said saturated conjugated diene unit (d) is 0.08 or smaller, and 'x&#xb7;A' defined as a product of said ratio &#x201c;x&#x201d; and a content ratio &#x201c;A&#x201d; (%) of said &#x3b1;,&#x3b2;-ethylenically unsaturated nitrile unit (a) is 1.5 or smaller. According to the present invention, a nitrile group-containing copolymer rubber capable to provide a rubber vulcanizate highly balanced in mechanical strength, heat aging resistance, oil resistance, cold resistance and ozone resistance, and a vulcanizable rubber composition using the rubber can be provided.

Nitrile group-containing copolymer rubber and a vulcanizable nitrile group-containing copolymer rubber composition

The present invention provides a recovery method in which the indium sponge that is deposited by substitution in the substitution deposition step in the recovery of indium from an indium-containing material is produced in the form of a powder rather than in a bulky form. This recovery method is a method in which an indium sponge is deposited by substitution by adding a substance containing chlorine, and further adding a reducing agent, to an indium-containing solution whose pH has been adjusted to a value in the range of 1 to 2.2.

Method for recovering indium from indium-containing material

A nitrile group-containing highly saturated copolymer rubber comprising (a) 10-40 wt. % of &agr;,&bgr;-ethylenically unsaturated nitrile monomer units, (b) 10-60 wt. % of &agr;,&bgr;-ethylenically unsaturated carboxylic acid ester monomer units, (c) 0.01-21 wt. % of conjugated diene monomer units, and (d) 14-69.99 wt. % of saturated conjugated diene monomer units, wherein the sum of monomer units (c) plus (d) is 20-70 wt. %, the ratio of monomer units (d)/&lsqb;monomer units (c) plus (d)&rsqb; is at least 70 wt. %, and the difference between the extrapolated glass transition-initiating temperature (Tig) and the extrapolated glass transition-ending temperature (Teg), as measured by DSC is not higher than 10&deg; C. The copolymer rubber gives a crosslinked product having good cold resistance, oil resistance and dynamic properties.

Rubber, crosslinkable rubber composition, and crosslinked object

The present invention relates to an elastic tubing pump and more particularly to an elastic tubing pump. The pump has an elastic tube communicating with a liquid supply source, a pressing means for pressing at least two points of a section of the elastic tube to seal the liquid therein, a driving means for pushing the pressing means in one direction of the elastic tube, a locking means for firmly holding the elastic tube from being moved by the pressing means, a shifting means for unlocking the locking means according to the driving operations of the driving means and for advancing the elastic tube by the length of its compressed section. The driving means can accelerate to compensate for the possible decrease in the liquid's flow through the tube during a time of shifting the elastic tube by one section's length.

Elastic tubing pump

A heat-developable photosensitive material of which thermal fogging is markedly suppressed without detriment to image characteristics such as sensitivity, which is prepared by forming a single layer or multiple layers of a heat-developable photosensitive element comprising at least (a) an oxidation-reduction image-forming component comprising a long-chain fatty acid silver salt and a reducing agent, (b) a photosensitive silver halide or/and a photosensitive slilver halide-forming component, (c) a binder, and (d) at least one member selected from the compounds represented by the following general formula:

Growing community of inventors

Tokyo, Japan

Akira Tsukada