公开(公告)号：EP0348094A1

公开(公告)日：1989-12-27

申请号：EP89306010.3

申请日：1989-06-14

申请人： MITSUI TOATSU CHEMICALS, Inc.

发明人： Takenaka, Shinji ,  Oi, Ryu ,  Shimakawa, Chitoshi

IPC分类号： C25B3/04

CPC分类号： C25B3/04 ,  C07C33/22

摘要： Disclosed herein is a process for the electro-­reduction of aromatic acids comprising reducing an aromatic carboxylic acid electrolytically in an aqueous acidic solution (2) the use of a material of a low oxygen overvoltage as the anode (3) for oxygen generation, thereby producing the corresponding benzyl alcohol in high yield in a single electrolytic apparatus (1).

摘要翻译： 本文公开了一种芳族酸的电还原方法，包括在酸性水溶液中电解还原芳族羧酸（2）使用低氧过电压材料作为氧气产生的阳极（3），从而产生 相应的苯甲醇在单个电解设备（1）中高产率。

公开(公告)号：EP0394042B1

公开(公告)日：1993-03-31

申请号：EP90304218.2

申请日：1990-04-19

申请人： MITSUI TOATSU CHEMICALS, Inc.

发明人： Oi, Ryu ,  Shimakawa, Chitoshi ,  Takenaka, Shinji

IPC分类号： C07C43/295 ,  C07C41/16

CPC分类号： C07C41/16 ,  C07C43/295

公开(公告)号：EP0394042A1

公开(公告)日：1990-10-24

申请号：EP90304218.2

申请日：1990-04-19

申请人： MITSUI TOATSU CHEMICALS, Inc.

发明人： Oi, Ryu ,  Shimakawa, Chitoshi ,  Takenaka, Shinji

IPC分类号： C07C43/295 ,  C07C41/16

CPC分类号： C07C41/16 ,  C07C43/295

摘要： A process for producing m-phenoxybenzyl alcohol by reacting chlorobenzene with m-hydroxybenzyl alcohol in the presence of a copper catalyst and a base, the process being characterized by using an alkylene glycol as a reaction solvent.

摘要翻译： 一种在铜催化剂和碱存在下使氯苯与间羟基苄醇反应生产间苯氧基苄醇的方法，该方法的特征在于使用亚烷基二醇作为反应溶剂。

公开(公告)号：EP0228181B1

公开(公告)日：1990-07-11

申请号：EP86309071.8

申请日：1986-11-20

申请人： MITSUI TOATSU CHEMICALS, Inc.

发明人： Takenaka, Shinji ,  Oi, Ryu ,  Shimakawa, Chitoshi

IPC分类号： C25B3/04

CPC分类号： C25B3/04

公开(公告)号：EP0228181A1

公开(公告)日：1987-07-08

申请号：EP86309071.8

申请日：1986-11-20

申请人： MITSUI TOATSU CHEMICALS, Inc.

发明人： Takenaka, Shinji ,  Oi, Ryu ,  Shimakawa, Chitoshi

IPC分类号： C25B3/04

CPC分类号： C25B3/04

摘要： A process for producing m-hydroxybenzyl alcohol which comprises electrolytically reducing m-hydroxybenzoic acid in an acidic aqueous solution at a temperature of 20 to 70°C while m-hydroxybenzyl alcohol is present always in the electrolytic solution. The constant presence of m-hydroxybenzyl alcohol is effected by (l) continuously adding m-hydroxybenzoic acid to the electrolytic solution in an amount corresponding to that consumed as the electro­lytic reaction proceeds, or (2) by continuously adding m-hydroxybenzoic acid and the acidic aqueous solution to the electrolytic solution.

公开(公告)号：EP0742244A2

公开(公告)日：1996-11-13

申请号：EP96303101.8

申请日：1996-05-02

申请人： MITSUI TOATSU CHEMICALS, INC.

发明人： Okazaki, Koju ,  Shimakawa, Chitoshi ,  Tanaka, Mamoru ,  Kanemura, Yoshinobu ,  Nagata, Teruyuki ,  Irizato, Yoshihiro ,  Umeda, Shinichi

IPC分类号： C08G75/04 ,  C08G59/66 ,  C08G18/52 ,  G02B1/04 ,  C08L63/00 ,  C08L81/04 ,  C08L75/00

CPC分类号： C08G59/66 ,  C08G18/3876 ,  G02B1/041 ,  C08L81/00

摘要： Disclosed herein are a composition for polysulfide-based resin comprising a polythiol having 4 or more functional groups and a compound having a reactive unsaturated bond(s) and/or b epoxy group(s) and/or c iso(thio)cyanato group(s) in one molecule (however, a + b + c ≥2, and a and b are not simultaneously 0), and a polysulfide-based resin obtained by curing the composition, an optical material comprising the resin, a lens consisting of the optical material and a method for producing the polysulfide-based resin.