公开(公告)号：JPS60233119A

公开(公告)日：1985-11-19

申请号：JP8912784

申请日：1984-05-02

Applicant: KANAGAWA PREFECTURE

Inventor： NAKAMURA KUNIO ,  SATOU ROU ,  SHIOZAKI HIDEKI

IPC: C08F289/00

Abstract: PURPOSE:A vinyl graft high polymer substance having improved moldability and adaptability to organisms, obtained by adding sericin to a vinyl monomer by graft polymerization. CONSTITUTION:Sericin prepared by degumming process is copolymerized with a vinyl monomer for polystyrene, polymethyl metacrylate, poly methyl acrylate, polyvinyl acetate, etc. by the use of a radical polymerization initiator such as pottasium sulfite, benzoyl peroxide, azobisisobutyronitrile, ammonium cerium nitrate, etc., to give the desired high polymer substance having several % - several hundred % addition ratio of the vinyl monomer based on sericin.

公开(公告)号：JPH11180934A

公开(公告)日：1999-07-06

申请号：JP36386997

申请日：1997-12-18

Applicant: KANAGAWA PREFECTURE ,  SOGO PHARMACEUT CO LTD

Inventor： SATOU ROU ,  KIMURA KOICHI ,  OIKAWA KENICHI ,  SUWABE NOBUO ,  MIYAZAKI YUJI

IPC: C07C201/08 ,  C07B61/00 ,  C07C205/57

Abstract: PROBLEM TO BE SOLVED: To provide a method for producing p-nitrobenzoic acid by which the selectivity and conversion to the p-nitrobenzoic acid are extremely improved, and further to provide an apparatus therefor. SOLUTION: This method for producing p-nitrobenzoic acid by heating a polystyrene with nitric acid in the presence of manganese dioxide is regulated so that the specific gravity of the nitric acid after finishing the reaction may be 1.25-1.5. Concretely, the reaction is carried out by refluxing the first reaction vessel 1 charged with nitric acid with 1.42 specific gravity and the manganese dioxide, and the second reaction vessel 2 charged with the nitric acid with 1.42 specific gravity, sending nitric acid solution containing the manganese dioxide in a vessel 3 for both supplying the nitric acid and recovering the nitric acid to the vessel 1, and simultaneously flowing out the nitric acid solution in the vessel 1 to the vessel 2, inserting granular polystyrene into the vessel 1, and carrying out the reaction while flowing out the content of the vessel 1 to the vessel 2 through a communication pipe 6. The water, nitrogen dioxide and nitrogen oxide generated in the vessels 1 and 2 are recovered as the nitric acid with 1.37 specific gravity in the vessel 3 after converting the nitrogen oxide into the nitrogen dioxide by introducing air from a line 10.

公开(公告)号：JPH09165358A

公开(公告)日：1997-06-24

申请号：JP34714195

申请日：1995-12-15

Applicant: KANAGAWA PREFECTURE

Inventor： SATOU ROU ,  KIMURA KOICHI ,  HOSOI KIYOSHI

IPC: C07C201/14 ,  C07B61/00 ,  C07C205/57

Abstract: PROBLEM TO BE SOLVED: To produce p-nitrobenzoic acid with a single reaction step in high selectivity by heating a styrene-based polymer and nitric acid in the presence of a compound containing a metallic atom. SOLUTION: p-Nitrobenzoic acid is produced by heating (A) a styrene-based polymer and (B) nitric acid in the presence of (C) a compound containing a metallic atom (e.g. manganese dioxide, chromium oxide, iron oxide, cobalt oxide, copper hydroxide or cobalt chloride). The component B may be used in combination with (D) acetic acid. The concentration of the component B is preferably 20-100wt.%, more preferably 30-90wt.%, especially 40-80wt.%. In the case of using the component D, the weight ratio of the component D to the component B is preferably 10-500%, more preferably 20-300%, especially 50-200%.

公开(公告)号：JP2007084498A

公开(公告)日：2007-04-05

申请号：JP2005276954

申请日：2005-09-26

Applicant: Kanagawa Prefecture ,  Oputei:Kk ,  株式会社オプティ ,  神奈川県

Inventor： SATOU ROU ,  KIMURA KOICHI ,  TAKAHASHI AKIRA

IPC: C07C229/60 ,  C07B61/00 ,  C07C227/04

Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a para-aminobenzoic acid, by which the para-aminobenzoic acid can safely be produced in a high yield in high selectivity and at a high reaction rate. SOLUTION: This method for producing the para-aminobenzoic acid comprises heating a styrenic polymer together with nitric acid and optionally acetic acid in the presence of a manganese atom-containing compound to produce the para-nitrobenzoic acid, and then reducing the produced para-nitrobenzoic acid with ≥1 atm hydrogen. Thus, the para-aminobenzoic acid can be produced in a high yield in high selectivity and at a high reaction rate. The reaction rate is larger than that of a method using commercially available para-nitrobenzoic acid. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 待解决的问题：提供对氨基苯甲酸的制备方法，通过该方法可以以高选择性和高反应速率以高产率安全地制备对氨基苯甲酸。 解决方案：用于制备对氨基苯甲酸的方法包括在含有锰原子的化合物的存在下，将苯乙烯聚合物与硝酸和任选的乙酸一起加热以产生对硝基苯甲酸，然后将所产生的 对硝基苯甲酸与≥1atm氢。 因此，可以以高选择性和高反应速率以高产率制备对氨基苯甲酸。 反应速率大于使用市售对硝基苯甲酸的方法。 版权所有（C）2007，JPO＆INPIT