Mitsui Toatsu Chemicals, Incorporated

Toyo Engineering Corporation

Panasonic Corporation

Panasonic Intellectual Property Management Co., Ltd.

Mitsui Chemicals, Inc.

Agency of Industrial Science and Technology

Petroleum Energy Center

Nippon Seal, Co., Ltd.

Extra Ministerial Bureau of Ministry of International Trade and Industry

Hiroshi Ono

Tetsuya Oishi

Shigeru Inoue

Jin Suzuki

Kouhei Ohkawa

Satoshi Furusawa

Kazuo Sugazaki

Hidetsugu Fujii

Masamitsu Inomata

Haruyuki Morikawa

Akito Fukui

Takaharu Kasuga

Akihiko Ishibashi

Kenya Yamashita

Hiroshi Ozawa

Minato Karasawa

Kenji Fujiwara

Atsuyoshi Yamauchi

Izumi Mega

Kazunori Kamada

Akito Watanabe

Tatsunobu Nakashima

Katsumi Sakamoto

Shigeru Nakahata

Shinji Kiyono

Kenichi Yamamoto

Masao Hashimoto

Kanemitsu Miyama

Kenji Yoshida

Eiiti Sugiyama

Tsutomu Sato

Suguru Watanabe

Yoshihiro Fujita

Yusuke Hino

Rio Otsuru

Keiko Nishimura

Ryo Iriguchi

Yoshimitsu Kokubu

Harushige Sugawara

Takeshi Oomatsuzawa

Heng Phala

The present invention includes a roller brush provided in a frame main body. The roller brush includes a rigid shaft, a pair of guide rollers, which are arranged concentrically with a shaft center line of the rigid shaft, and are mounted to shaft ends of the rigid shaft, and a cleaning brush cloth including cut piles raised from a cloth front surface of a foundation cloth. The cleaning brush cloth is helically wound around a shaft outer-peripheral surface of the rigid shaft with a cloth back surface of the foundation cloth being in contact with the shaft outer-peripheral surface, and is fixed to the rigid shaft.

Manual cleaning tool

The object of the present invention is to provide a Group III nitride semiconductor light emitting diode having improved light extraction efficiency. A Group III nitride semiconductor light emitting diode according to the present disclosure includes an RAMOlayer including a single crystal represented by the general formula RAMO(wherein R represents one or more trivalent elements selected from the group consisting of Sc, In, Y and lanthanoid elements, A represents one or more trivalent elements selected from the group consisting of Fe (III), Ga and Al, and M represents one or more divalent elements selected from the group consisting of Mg, Mn, Fe (II), Co, Cu, Zn and Cd); and a layered product stacked on the RAMOlayer. The layered product includes at least a light emitting layer including a Group III nitride semiconductor. A degree of flatness of a surface, of the RAMOlayer, opposite to the layered product is lower than a degree of flatness of a surface, of the RAMOlayer, adjacent to the layered product.

Group III nitride semiconductor light emitting diode, and method for producing same

A Group III nitride semiconductor for growing a high-quality crystal having a low defect density and a method for producing the Group III nitride semiconductor. The Group III nitride semiconductor includes an RAMOsubstrate including a single crystal represented by the general formula RAMO(where R represents one or more trivalent elements selected from the group consisting of Sc, In, Y and lanthanoid elements, A represents one or more trivalent elements selected from the group consisting of Fe(III), Ga and Al, and M represents one or more divalent elements selected from the group consisting of Mg, Mn, Fe(II), Co, Cu, Zn and Cd); a p-type Group III nitride crystal layer disposed on the RAMOsubstrate; a plurality of n-type Group III nitride crystal layers disposed on the p-type Group III nitride crystal layer; and a Group III nitride crystal layer disposed on the n-type Group III nitride crystal layers.

Group III nitride semiconductor and method for producing same

Methanol is produced by reacting carbon monoxide and hydrogen in the presence of a Raney copper catalyst containing 80 to 99.9 wt. % of copper in a solvent. The catalysts employed in the present invention showed a much higher activity even under the conditions of a low temperature in methanol production, than any of the known catalysts. The process of the methanol production may eliminate necessity for recycling an unreacted synthesis gas into the reaction system, and makes it feasible to conduct methanol synthesis at a lower pressure than conventional processes.

Process for methanol production

Provided by the present invention are novel diguanamine derivatives, led by 2,5/2,6-bis(4,6-diamino-1,3,5-triazin-2-yl)-bicyclo�2.2.l!heptanes and 1,3/1,4-bis(4,6-diamino-1,3,5-triazin-2-yl)-cyclo-hexanes, and derivatives thereof, applications of these compounds in fields such as adhesives and paints, utilization of these compounds in flame-retarding, thermal stabilization and compatibilization methods of resins, thermosetting molding compositions and thermosetting expansion-molding compositions making use of these compounds, as well as polymeric microspheres also using these compounds. These compounds are expected to find wide spread industrial utility as various excellent properties can be obtained by using them.

Diguanamines and preparation process, derivatives and use thereof

Provided by the present invention are novel diguanamine derivatives, led by 2,5/2,6-bis(4,6-diamino-1,3,5-triazin-2-yl)-bicyclo�2.2.1!heptanes and 1,3/1,4-bis(4,6-diamino-1,3,5-triazin-2-yl)-cyclohexanes, and derivatives thereof, applications of these compounds in fields such as adhesives and paints, utilization of these compounds in flame-retarding, thermal stabilization and compatibilization methods of resins, thermosetting molding compositions and thermosetting expansion-molding compositions making use of these compounds, as well as polymeric microspheres also using these compounds. These compounds are expected to find wide spread industrial utility as various excellent properties can be obtained by using them.

Provided by the present invention are novel diguanamine derivatives, led by 2,5/2,6-bis(4,6-diamino-1,3,5-triazin-2-yl)-bicyclo[2.2.1]heptanes and 1,3/1,4-bis(4,6-diamino-1,3,5-triazin-2-yl)-cyclohexanes, and derivatives thereof, applications of these compounds in fields such as adhesives and paints, utilization of these compounds in flame-retarding, thermal stabilization and compatibilization methods of resins, thermosetting molding compositions and thermosetting expansion-molding compositions making use of these compounds, as well as polymeric microspheres also using these compounds. These compounds are expected to find wide spread industrial utility as various excellent properties can be obtained by using them.

Disclosed is a process for the production of highly pure lactide, especially having a sufficiently high purity to be usable as a raw material for the synthesis of polymers, by heating a 2-halopropionate in a non-aqueous solvent.

Process for the production of lactide

Production process of 2-chloropropionaldehyde

A process for the production of 2-chloropropionaldehyde from vinyl chloride, carbon monoxide and hydrogen which comprises using a rhodium compound and a trivalent organic phosphorus compound or the oxide of a trivalent organic phosphorus compound as a catalyst and carrying out the reaction under the co-existence of an acid the pka of which is in the range of 0.5-5, the oxide, hydroxide or a weak acid salt of an alkali metal or alkaline earth metal, or a buffer solution.

This invention relates to a process for preparing 2-chloropropionaldehyde (2-CPA) by using vinyl chloride, carbon monoxide and hydrogen as raw materials. Although processes making use of cobalt catalysts have conventionally been known, it is disclosed herein that by using a rhodium compound and a nitrogen- or phosphorus-containing Lewis base in combination as a catalyst, the reaction is allowed to proceed at temperature and pressure lower than those required for such conventional processes and the selectively toward the intended product is improved. It is also disclosed that by causing water to exist in the reaction system and using a water-insoluble organic solvent, fractionating the reaction mixture into a water layer and an organic layer after the reaction and then collecting 2-CPA from the water layer through distillation, extraction or the like, the rhodium compound contained substantially in its entirety in an organic layer can be reutilized in the form of its solution. This process is an extremely good process suitable for use in the preparation of 2-CPA which is useful as an intermediate for chemical products, agricultural chemicals, pharmaceutical products, etc.

Preparation process of 2-chloropropionaldehyde

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Osaka, Japan

Hiroshi Ono