Mitsubishi Gas Chemical Company, Inc.

Sumitomo Wiring Systems, Limited

Mitsubishi Denki Kabushiki Kaisha

Toshiba Memory Corporation

National University Corporation Kyoto Insitute of Technology

National University Corporation Kyoto Institute of Technology

Satoshi Nagai

Akira Okamura

Hiroshi Mimura

Makoto Kobayashi

Osamu Kondo

Takayasu Fujimori

Shu Yoshida

Akira Ito

Kentaro Matsunaga

Hiroshi Kobayashi

Yoshinori Isahaya

Masao Hasegawa

Kyohei Takakuwa

Yasuhiro Ando

Masahisa Suzuki

Tetuya Funaki

Takashi Konishi

Shinya Miyamoto

Makoto Sasaki

Daisuke Sunaga

Masaharu Kimura

Eiji Yoneda

Hiromitsu Nagashima

Hiroyuki Hamada

Hiroyoshi Yamazaki

Makoto Mizutani

Mitsuhiko Masumoto

Hiroyasu Kisaichi

Akiyoshi Shibata

Ken-ichi Shimizu

Toshiaki Aso

Koutarou Sho

Jian Yu

Toshiaki Okuzono

Daisuke Sanada

YewWei Leong

Masaya Kotaki

Sachiko Sukigara

Yasuhiko Fukami

According to one embodiment, a semiconductor device includes a stacked body of N (N is an integer of 2 or more) layers stacked on a semiconductor substrate and openings different in depth surrounded by the stacked body and separated from each other.

Manufacturing method for a semiconductor device including resist films different in thickness

The present invention has an object of providing a molded article of a composite structure obtained by bonding a polar thermoplastic resin, especially polyacetal, with another resin in a simple manner. According to the present invention, a molded article of a composite structure obtained by bonding a polar thermoplastic resin and a resin containing an aliphatic ester structure as a main component to each other in the state where at least a face at which both of the materials contact each other is in a melted state can be provided.

Composite molded article having two-layer structure

The present invention has an object of providing a novel multilayer composite fiber using polyacetal mainly derived from methanol, which is a petroleum-independent raw material, and having a low environmental load, and also providing a nonwoven fabric obtained by thermally bonding such fibers. According to the present invention, a multilayer composite fiber comprising a resin containing polylactic acid as a main component and a resin containing polyacetal as a main component, in which the components both form continuous layers in an axial direction of the fiber, and also a nonwoven fabric obtained by thermally bonding such fibers, can be provided.

Multilayer composite fiber

Provided are a method of bonding resin materials for bonding a resin material (X) containing an oxymethylene-based polymer (A) and a resin material (Y), and a structure obtained by the bonding method. The method includes preparing as the resin material (Y) a low-melting-point oxymethylene-based polymer (B) having a melting point lower than that of the oxymethylene-based polymer (A) by 5 to 50&#xb0; C., or preparing as the resin material (Y) the resin material (X) or another resin material, and providing the low-melting-point oxymethylene-based polymer (B) between the resin material (Y) and the resin material (X) and heating resin materials.

Method for bonding resin materials containing oxymethylene polymer and  structures

Provided are a method of bonding a resin material (X) containing an oxymethylene-based polymer (A) and a resin material (Y), including: preparing an oxymethylene-based polymer composition (B) as resin material (Y), and resin material (X); or preparing resin material (X) and a resin material identical to resin material (X) or another resin material as resin material (Y), and providing polymer composition (B) between resin material (Y) and resin material (X); and heating: wherein polymer composition (B) has a melting point lower than that of polymer (A), and a difference in melting point between the composition and the polymer is smaller than 5&#xb0; C.; and 50% or more of a peak area determined from a peak showing the molten state of polymer composition (B) measured by DSC is present in a temperature region lower than the peak temperature of polymer (A) by 5&#xb0; C. or more; and a structure obtained thereby.

Method for adhesion of resin material comprising oxymethylene polymer, and structure

Provided is an oxymethylene copolymer composition for a stretched material having a high strength and a high elastic modulus, the composition including: an oxymethylene copolymer; and a crosslinkable compound to be blended with the oxymethylene copolymer in an amount of 0.001 to 0.05 part by mass with respect to 100 parts by mass of the oxymethylene copolymer. The present invention also relates to a stretched material obtained by using the oxymethylene copolymer composition. Further, the present invention relates to a structure obtained by the secondary processing of the above stretched material, and a structure obtained by using the above oxymethylene copolymer composition in a bonding layer of the structure. The present invention also relates to a method of producing a structure, the method including: using the oxymethylene copolymer composition in a bonding layer of the structure; and removing a polyalkylene glycol component with water or a solvent.

Oxymethylene copolymer composition for stretching material, stretching material, structures, and process for producing the same

The problem to be solved is to provide a process for producing a polyoxymethylene copolymer in a molding machine with a reduced generation of formaldehyde gas. In a process for continuously producing a polyoxymethylene copolymer comprising a step of melt-kneading a crude polyoxymethylene copolymer at a temperature not lower than the melting point thereof, devolatilizing under reduced pressure the formaldehyde gas generated as a decomposition product, subsequently mixing a formaldehyde scavenger containing a hydrazide compound (A) while keeping the copolymer in a molten state and immediately pelletizing the mixture, a dispersed solution obtained by slurry-dispersing said (A) in a diluent (B) having a melting point lower than temperature (Ta) which is the lower of the melting point and the decomposition temperature of (A), within a temperature range not lower than the melting point of (B) and lower than (Ta) is used as the formaldehyde scavenger.

Process for producing polyoxymethylene copolymer

Aldehyde compounds contained in polycyclic diols as impurities are effectively removed by distilling the polycyclic diols in the presence of an alkali metal compound and/or a alkaline earth compound. The distilled polycyclic diols are useful as a diol component of a polymer such as polycarbonate with less yellowing.

Distillation of polycyclic diol

An aromatic-aliphatic copolycarbonate and a process for producing the same which comprises polycondensation of an aromatic dihydroxy compound, such as 1,1-bis(4-hydroxyphenyl)cyclohexane, tricyclo(5.2.1.0 )decanedimethanol, and a carbonic acid diester in a molten state under heating, wherein the carbonic acid diester has a chlorine content of 20 ppm or lower. The copolycarbonate has improved refractive index, balance of dispersion, and photoelastic constant while retaining high impact resistance, high heat resistance, and excellent hue.

Aromatic-aliphatic copolycarbonate and process for producing the same

A process for producing an aromatic-aliphatic copolycarbonate which is excellent in impact resistance and heat resistance and has large Abbe number, small photoelasticity constant, and excellent color tone. The process comprises conducting polycondensation in a reactor made of a stainless steel comprising at least 12 wt % nickel, at least 22 wt % chromium, and at least 50 wt % iron.

Process for producing aromatic-aliphatic copolycarbonate

Processes for producing an aromatic/aliphatic copolycarbonate which has excellent impact resistance, excellent heat resistance, a high Abbe's number, a low photoelastic coefficient, and an excellent color tone. The processes include those in which: an aromatic/aliphatic copolycarbonate having a nitrogen content of 9 ppm or lower is produced from an aliphatic dihydroxy compound having a nitrogen content of 10 ppm or lower; an aromatic/aliphatic copolycarbonate is produced from an aliphatic dihydroxy compound having an iron content of 1 ppm or lower; an aromatic/aliphatic copolycarbonate is produced from an aliphatic dihydroxy compound having a content of aldehyde groups and/or formyl groups of 100 ppm or lower; an aromatic/aliphatic copolycarbonate is produced by subjecting an aromatic dihydroxy compound and an aliphatic dihydroxy compound having a content of free chlorine of 5 ppm or lower to polycondensation with heating and melting; and an aromatic/aliphatic copolycarbonate is produced from an aliphatic dihydroxy compound which has a melt Hazen unit of 40 or smaller after having been maintained at 260&deg; C. for 5 hours in the air.

Processes for producing aromatic/aliphatic copolycarbonate

A wiring harness arranging construction is provided to arrange a wiring harness in a position more toward a passenger compartment than a hinge and a weatherstrip. The construction includes a container casing,with a space,for accommodating a looped harness, an insertion opening,and a withdrawal opening,for the harness which are opposed to each other, and a harness fixing portion,projecting from the outer surface of the insertion opening,After being inserted through the insertion opening,and wound around a windup spring,inside the casing,the wiring harness is withdrawn through the withdrawal opening,The container casing,is secured to either one of a door and a body, and the wiring harness withdrawn from the container casing,is extended to the other of the door and the body and secured thereto by a clamp. Accordingly, the wiring harness can extend and contract while varying the diameter of the loop of its part passed through the container casing as the door is opened and closed.

Wiring harness arranging construction

A wiring harness arranging construction is provided to arrange a wiring harness in a position more toward a passenger compartment than a hinge and a weatherstrip. The construction includes a container casing 10 with a space 10p for accommodating a looped harness, an insertion opening 10f and a withdrawal opening 10g for the harness which are opposed to each other, and a harness fixing portion 10h projecting from the outer surface of the insertion opening 10f. After being inserted through the insertion opening 10f and wound around a windup spring 30 inside the casing 10, the wiring harness is withdrawn through the withdrawal opening 10g. The container casing 10 is secured to either one of a door and a body, and the wiring harness withdrawn from the container casing 10 is extended to the other of the door and the body and secured thereto by a clamp. Accordingly, the wiring harness can extend and contract while varying the diameter of the loop of its part passed through the container casing as the door is opened and closed.

A process for producing an impact-resistant polyacetal resin composition, which comprises a first step of mixing with shear a polyacetal resin (A), a thermoplastic polyurethane (B) and a polyhydric alcohol (C) having at least three hydroxyl groups in the molecule at a temperature of 180.degree. to 250.degree. C. and at a temperature at which said polyacetal resin (A) and said thermoplastic polyurethane (B) melt; and a second step of mixing with shear the resulting mixture obtained in the first step, in the presence of at least one compound (D) selected from the group consisting of a polyisocyanate (d.sub.1) and a compound (d.sub.2) which generates a polyisocyanate under heat, at a temperature of 180.degree. to 250.degree. C. and at a temperature at which said polyacetal resin (A) and said thermoplastic polyurethane (B) melt. The polyacetal resin composition provided by the above process is useful as a material for such parts as clips, springs, gears, bearings, cams, levers and the like in electric and electronic machines, office machines, automobiles, industrial machines, toys and/or sports goods, etc.

Process for producing impact-resistant polyacetal resin composition

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Mie, Japan

Satoshi Nagai