Mitsui Chemicals, Inc.

Fujitsu Corporation

Fujitsu Telecom Networks Limited

Koji Matsunaga

Tatsuya Toyozumi

Hiroshi Hoya

Yoji Hayakawa

Kuniaki Kawabe

Wataru Kawasaki

Yuichiro Sakane

Koji Bato

Yasuo Tanaka

Hirotaka Kanaya

Kunihiko Mizumoto

Tatsuhiko Saito

Ikuo Akai

Yosuke Takahashi

Masayoshi Yamaguchi

Kenji Sugimura

Tomoyuki Sakata

Akinori Etoh

Junichi Sawada

Shinya Tanaka

Mai Kurihara

Koya Yoshimoto

Makoto Egawa

Hidetoshi Amari

Shinji Takao

Tomohiro Abe

Toshiyuki Itou

Tatsuro Kishida

Hiroto Yasui

Masayoshi Sutou

Shinichirou Asao

Yutaka Kai

Shota Mori

Masahiro Shioda

Atsuki Taniguchi

Yumiko Ogata

Kanna Okamura

Masaya Kusumoto

Hiroki Tamura

Koichiro Nakayama

Kenichi Ishikawa

Takuya Tamura

Shin Tokui

Hironobu Fukuura

Nobuhiko Usui

Masayuki Maehira

Tomonori Yamada

The purpose of the present invention is to provide a fiber-sizing agent which when applied to an inorganic reinforcement material contained in a resin composition, can provide a molded article having excellent impact resistance and high surface gloss properties. The fiber-sizing agent according to the present invention contains a modified olefin wax (A), a polyolefin resin (B), and a silane-coupling agent (C), wherein the mass ratio (A)/(B) of the modified olefin wax (A) to the polyolefin resin (B) is in the range of 0.2-10.

Fiber-sizing agent, inorganic reinforcement material, resin composition, and molded article

A novel vinyl chloride resin composition having exceptional transparency is provided. This resin composition comprises 3-15 parts by mass of a rubbery impact-absorbing material (B) for which the glass transition point in differential scanning calorimetry does not exceed 0&#xb0; C., and 0.1-10 parts by mass of a lubricant (C) that satisfies (i)-(iv) below, the content amounts above being indicated relative to 100 parts by mass of a vinyl chloride resin (A) having a chlorine content of 55-75 mass %. (i) The melt viscosity at 200&#xb0; C. is 5-5,000 mPa&#xb7;s (ii) The softening point is in the range of 60&#x2212;180&#xb0; C. (iii) The glass transition point (Tg) as measured in DSC is in the range of 0&#x2212;100&#xb0; C. (iv) A structural unit derived from at least one species selected from the group consisting of styrene, &#x3b1;-methylstyrene, indene, vinyl toluene, and isopropenyl toluene is contained in the molecule in an amount of 50-100 mass %

Resin composition and molded body formed therefrom

The purpose of the present invention is to provide an electroconductive resin composition that has excellent electroconductivity and high mechanical strength. The electroconductive resin composition according to the present invention comprises 75-99 parts by mass of a thermoplastic resin (A), 1-25 parts by mass of a carbon material (B), and more than 1 part by mass but not more than 10 parts by mass, per 100 parts by mass of the total amount of the thermoplastic resin (A) and the carbon material (B), of a modified polyolefin wax (C), wherein the carbon material (B) is a granular carbon material having an average grain diameter of 500 nm or less or a fibrous carbon material having an average fiber length of 1000 &#x3bc;m or less.

Electroconductive resin composition, method for manufacturing same and molded article obtained therefrom

An object of the invention is to provide compositions which have low-temperature heat sealing properties, are free from stickiness, may achieve a heat seal strength controlled within a certain definite range when heat sealing takes place at low temperatures, have small changes in heat seal strength with time, and are such that in the packaging applications, the strength required to open the packages may be easily controlled within a certain definite range, and high-performance packages may be designed. The invention resides in a 1-butene.&#x3b1;-olefin copolymer composition including 99 to 1 parts by mass of at least one olefin polymer (X) selected from propylene polymers (X-1) and ethylene polymers (X-2), and 1 to 99 parts by mass of a 1-butene.&#x3b1;-olefin copolymer (Y) containing 0.1 to 30 mol % of one or more &#x3b1;-olefins selected from &#x3b1;-olefins and having a molecular weight distribution (Mw/Mn) of 1.0 to 3.5 [wherein the total of (X) and (Y) in the composition is 100 parts by mass].

1-butane-&#x3b1;-olefin copolymer composition

An optical transmitter includes a dummy optical source, a polarized wave beam coupler, and an auto gain control (AGC)-system amplifier. The dummy optical source outputs, out of an optical signal in which an optical path signal and an optical packet signal are mixed, a dummy signal having a wavelength identical to that of the optical packet signal. The polarized wave beam coupler multiplexes the dummy signal with the optical signal so that the dummy signal is orthogonal to the optical signal so as to output an output signal. The AGC-system amplifier inputs the output signal, and amplifies the output signal with a predetermined amplification factor corresponding to a power difference between input power and output power of an optical amplifier.

Optical transmitter and optical transmission method

[Object] To provide a resin composition with excellent mold releasability and blocking resistance. [Solution] A resin composition containing a 4-methyl-1-pentene polymer includes 0.01 to 10 parts by mass of a 4-methyl-1-pentene polymer (B) per 100 parts by mass of at least one resin (A) selected from the group consisting of thermoplastic resins and thermosetting resins, wherein the 4-methyl-1-pentene polymer (B) has (B1) an intrinsic viscosity [&#x3b7;] of 0.01 or more but less than 0.50 dl/g measured at 135&#xb0; C. in a decalin solvent.

4-methyl-1-pentene polymer, resin composition containing 4-methyl-1-pentene polymer, masterbatch thereof, and formed product thereof

An optical transmitter includes an amplifying unit, a monitor, an identifying unit, and a controlling unit. The amplifying unit amplifies an optical signal in which an optical packet signal is mixed in optical path signals. The monitor monitors power of the optical signal on an input stage and an output stage of the optical amplifying unit, respectively. The identifying unit identifies an optical packet signal section on the input stage side based on the monitoring result on the input stage side, and identifies an optical packet signal section on the output stage side based on the monitoring result on the output stage side. The controlling unit compares the power of the identified section on the input stage side with the power of the identified section on the output stage side, and controls an amplification factor of the amplifying unit based on a power difference resulting from the comparison.

1-butene &#x3b1;-olefin copolymer composition

The optical transmission device includes an N&#xd7;N optical switch, an optical packet receiver and an optical packet generation unit. The N&#xd7;N optical switch transmits data in which a plurality of optical signals each having a different wavelength is multiplexed. The optical packet receiver detects change in the number of wavelengths of optical signals constituting the data. The optical packet generation unit generates, when the change is detected by the optical packet receiver, data to be transmitted by the N&#xd7;N optical switch, using optical signals for the number of wavelengths after the change.

Optical transmission device, optical transmission system, and optical transmission method

It is an object of the present invention to provide adhesive compositions having excellent flexibility, rubber elasticity, mechanical properties, heat resistance and low-temperature properties. An adhesive composition of the invention includes 10 to 70 parts by weight of a soft polypropylene resin composition (X) which includes 40 to 98 wt % of a propylene copolymer (A) satisfying the following requirements (A) to (A) and 2 to 60 wt % of a crystalline isotactic polypropylene (B) satisfying the following requirements (B) to (B), and 30 to 90 parts by weight of a tackifier (C) (wherein the total of the component (X) and the component (C) is 100 parts by weight), wherein (A) Shore A hardness: 20 to 90; (A) the copolymer comprises a copolymer with Cunits at 51 to 90 mol %, Cunits at 7 to 24 mol % and C&#x3b1;-olefin units at 3 to 25 mol %; (A) Mw/Mn: 1.2 to 3.5; (A) mm: 85 to 99.9%; (A) value B: 0.8 to 1.3; (A) 2,1-insertion ratio: less than 1%; (A) Tg: &#x2212;10&#xb0; C. to &#x2212;50&#xb0; C.; (A) MFR (230&#xb0; C.): 0.5 to 500 g/10 min; (B) Tm: 100 to 175&#xb0; C.; (B) mmmm: 90 to 99.8%; (B) MFR (230&#xb0; C.): 0.1 to 100 g/10 min.

Adhesive composition and adhesive containing the same

An optical communication apparatus includes a variable resistor unit, a measurement unit, and a control unit. The variable resistor unit is arranged at a pre-stage of an electrical/optical conversion unit, which converts an electrical signal obtained by converting an input packet to an optical signal having a waveform corresponding to a potential difference between a positive phase component and a negative phase component of the electrical signal by using the potential difference. The variable resistor unit provides a resistor that varies a midpoint of potential of the positive phase component or the negative phase component. The measurement unit measures a ratio of a presence period, which is a period where the input packet is present, to a sum of the presence period and a non-presence period. The control unit controls a value of the resistor provided to the positive phase component or the negative phase component based on the ratio.

Optical communication apparatus and control method thereof

An optical transmission device that receives a wavelength division multiplexed optical signal obtained by dividing an optical packet signal and performing wavelength multiplexing and that transmits via an optical switch the received wavelength division multiplexed optical signal includes an optical power level measurement unit configured to measure respective optical power levels of respective optical signals of wavelengths included in the wavelength division multiplexed optical signal, and a routing information determinator configured to determine routing information of the wavelength division multiplexed optical signal on the basis of the measured optical power levels.

Optical transmission device and method

An optical packet switching device causes branching of an optical packet that is input to an optical switch and detects a synchronization pattern having a predetermined number of bits from the branched optical packet. Then, the optical packet switching device calculates a synchronization point indicating a location of the synchronization pattern with respect to a detection timing and controls, in accordance with the calculated synchronization point, a delay amount of a delay element that delays an optical packet ON signal that is output to the optical switch.

Optical communication device and signal adjusting method

Provided is an adhesive resin composition having improved heat resistance without deteriorations in adhesive strength and flexibility. The adhesive resin composition comprises 30 to 98 wt % of an ethylene/vinyl acetate copolymer (a) and 70 to 2 wt % of a propylene resin composition (P), wherein the total of the component (a) and the component (P) is 100 wt %. The propylene resin composition (P) comprises 60 to 0 wt % of a propylene polymer (b) having a melting point of 120 to 170&#xb0; C. and a melt flow rate of 0.1 to 500 g/10 min, and 40 to 100 wt % of a propylene polymer (c) having a melting point of less than 120&#xb0; C. or showing no melting points and having a melt flow rate of 0.1 to 500 g/10 min, wherein the total of the component (b) and the component (c) is 100 wt %.

Adhesive resin composition and hot melt adhesive obtained therefrom

Growing community of inventors

Yokohama, Japan

Koji Matsunaga