公开(公告)号：US06087466A

公开(公告)日：2000-07-11

申请号：US194394

申请日：1998-11-25

Applicant: Shigeru Murata ,  Yukio Inaba ,  Masahiko Yasuda ,  Tetsuya Nakajima

Inventor： Shigeru Murata ,  Yukio Inaba ,  Masahiko Yasuda ,  Tetsuya Nakajima

IPC: C08G18/42 ,  C08G18/66 ,  C08G63/16 ,  C07C69/34

CPC classification number: C08G18/664 ,  C08G18/4238 ,  C08G63/16

Abstract: The present invention provides a polyester polyol comprising within its molecular structure both structural units respectively represented by the following general formula (I) and general formula (II). In addition, the present invention provides a polyurethane using the polyester polyol of the present invention. This polyurethane exhibits excellent resistance to hydrolysis, resistance to alkali, mechanical strength, and the like. ##STR1## (wherein R.sup.1 and R.sup.2 are the same or different and each represents lower alkyl having 1 to 8 carbon atoms), ##STR2## (wherein R.sup.3 and R.sup.4 are the same or different and each represents lower alkyl having 1 to 8 carbon atoms).

Abstract translation: PCT No.PCT / JP98 / 01061 Sec。 371日期：1998年11月25日 102（e）1998年11月25日日期PCT提交1998年3月13日PCT公布。 WO98 / 44014 PCT公开号 日本1998年8月10日本发明提供了一种聚酯多元醇，其分子结构包含分别由以下通式（I）和通式（II）表示的两个结构单元。 此外，本发明提供使用本发明的聚酯多元醇的聚氨酯。 该聚氨酯具有优异的耐水解性，耐碱性，机械强度等优点。 （其中R 1和R 2相同或不同，并且各自表示具有1至8个碳原子的低级烷基），（其中R 3和R 4相同或不同并且各自表示具有1至8个碳原子的低级烷基）。

公开(公告)号：US5624655A

公开(公告)日：1997-04-29

申请号：US946595

申请日：1992-09-18

Applicant: Yukio Inaba ,  Yohsuke Ueno ,  Takayuki Tsujino ,  Tohru Murakami

Inventor： Yukio Inaba ,  Yohsuke Ueno ,  Takayuki Tsujino ,  Tohru Murakami

IPC: C01B15/013 ,  C01B15/01

CPC classification number: C01B15/013

Abstract: This invention relates to a process for purifying a hydrogen peroxide aqueous solution, which comprises bringing a high concentration hydrogen peroxide aqueous solution containing a large amount of phosphoric acid obtained by extracting with water a reaction mixture prepared by a method of forming hydrogen peroxide by an oxidation-reduction process of anthraquinones, into contact with specific active alumina particles at a temperature of 0.degree. to 50.degree. C. for 6 to 500 minutes to remove a phosphoric acid component from the above high concentration hydrogen peroxide aqueous solution at a high rate substantially without causing decomposition of hydrogen peroxide.

Abstract translation: 本发明涉及一种纯化过氧化氢水溶液的方法，该方法包括使含有大量磷酸的高浓度过氧化氢水溶液通过用水提取通过氧化形成过氧化氢的方法制备的反应混合物 - 蒽醌的还原过程在0〜50℃的温度下与特定的活性氧化铝颗粒接触6〜500分钟，以高速率从上述高浓度过氧化氢水溶液中除去磷酸成分，基本上没有 引起过氧化氢分解。

公开(公告)号：US5206425A

公开(公告)日：1993-04-27

申请号：US669755

申请日：1991-03-15

Applicant: Yukio Inaba ,  Takafumi Hirakawa ,  Yohsuke Ueno ,  Suzuo Takiguchi

Inventor： Yukio Inaba ,  Takafumi Hirakawa ,  Yohsuke Ueno ,  Suzuo Takiguchi

IPC: C07C409/24

CPC classification number: C07C407/00 ,  C07C407/003 ,  C07C407/006

Abstract: A process for preparing perpropionic acid solution comprising reacting propionic acid with hydrogen peroxide in the presence of a boric acid catalyst wherein the reaction is carried out by using an ethyl propionate as a reaction solvent, and water in the reaction solution is removed continuously by azeotropic distillation with the reaction solvent. Since the reaction is carried out while the concentration of the peroxide in an aqueous phase separated from the distillate by the azeotropic distillation is maintained at not more than 0.1% by weight, a perpropionic acid solution containing almost no unreacted hydrogen peroxide can be prepared.

公开(公告)号：US5098607A

公开(公告)日：1992-03-24

申请号：US619767

申请日：1990-11-29

Applicant: Yukio Inaba ,  Takafumi Hirakawa ,  Hiromi Yabuta ,  Hiroyuki Iida

Inventor： Yukio Inaba ,  Takafumi Hirakawa ,  Hiromi Yabuta ,  Hiroyuki Iida

IPC: C07C407/00

CPC classification number: C07C407/006

Abstract: Disclosed is a process for stabilizing a percarboxylic acid characterized in that the percarboxylic acid is mixed with at least one pyridine derivative selected from the group consisting of picoline, ethylpyridine, conyrine, lutidine and N-oxide thereof.