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Patent Agency Ranking
公开(公告)号：US3488397A
公开(公告)日：1970-01-06
申请号：US3488397D
申请日：1967-10-19
Applicant: BOFORS AB
Inventor： HAKANSSON CHRISTER LENNART , ARVIDSSON ARNE ARVID , LOKEN INGAR
IPC: C07C201/08 , C07C205/06 , C07C79/10
CPC classification number: C07C201/08 , C07C205/06
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2.发明授权Method of producing fine-crystalline cast charges with unoriented crystalline structure of 2,4,6-trinitrotoluene or explosive compositions containing 2,4,6-trinitrotoluene 失效用2,4,6-三硝基苯酚或含有2,4,6-三硝基苯甲酸的爆炸性组合物的结晶结构生产精细晶体结晶的方法
公开(公告)号：US3620857A
公开(公告)日：1971-11-16
申请号：US3620857D
申请日：1969-04-17
Applicant: BOFORS AB
Inventor： SODERBERG JOHN LENNART , BACK JARL SIGURD , HAKANSSON CHRISTER LENNART
CPC classification number: C06B25/06 , C06B21/005
Abstract: Fine-crystalline cast charges with an unoriented crystal structure of TNT or explosive charges containing TNT are obtained by adding 2,2'',4,4'', 6, 6''-hexanitrostilbene to the melt from which the cast charge is made.
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公开(公告)号：US3507924A
公开(公告)日：1970-04-21
申请号：US3507924D
申请日：1968-06-11
Applicant: BOFORS AB
Inventor： HAKANSSON CHRISTER LENNART , NILSSON JOHN MARTIN
IPC: C07C201/10 , C07C205/06 , C07C79/10
CPC classification number: C07C201/14 , C07C205/06
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公开(公告)号：US3907880A
公开(公告)日：1975-09-23
申请号：US34122473
申请日：1973-03-14
Applicant: BOFORS AB
Inventor： HAKANSSON CHRISTER LENNART
IPC: C07C233/00 , C07C103/30
CPC classification number: C07C233/00
Abstract: 3-ACETAMIDO-5-AMINOBENZOIC ACID IS A VALUABLE INTERMEDIATE FOR THE PREPARATION OF DRUGS ESPECIALLY FOR CERTAIN TYPES OF IODINE COMPOUNDS WHICH ARE USED AS X-ray contrast agents. According to the present invention it is prepared by acetylating of 3,5diaminobenzoic acid in an aqueous solution in the presence of a mineral acid. The 3-acetamido-5-aminobenzoic acid is then obtained in the form of its salt of the mineral acid from which salt the desired free acid may be recovered by adding a base. The free acid is obtained in high yields and of high purity.
Abstract translation: 3-乙酰氨基-5-氨基苯甲酸是用于制备药物的有价值的中间体，特别适用于作为X射线造影剂使用的某些类型的碘化合物。 根据本发明，通过在无机酸存在下在水溶液中乙酰化3,5-二氨基苯甲酸来制备。 然后以其无机酸盐的形式获得3-乙酰氨基-5-氨基苯甲酸，通过加入碱可从其中回收所需的游离酸。 以高产率和高纯度获得游离酸。
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5.发明授权Method of oxidizing 1 2-diaryl ethanols with nitric acid to corresponding ketones 失效将1种2-二胺乙醇与硝酸氧化成相应的酮的方法
公开(公告)号：US3637857A
公开(公告)日：1972-01-25
申请号：US3637857D
申请日：1970-05-04
Applicant: BOFORS AB
Inventor： BAKKE JAN MAGNUS , HAKANSSON CHRISTER LENNART
CPC classification number: C07C201/12 , C07C45/29 , C07C253/30 , C07C205/45 , C07C49/784 , C07C255/56
Abstract: AR-CH2-CHOH-AR''
WHERE AR AND AR1 ARE PHENYL OR SUBSTITUTED PHENYL ARE COVERTED TO THE CORRESPONDING KETONES WITH NITRIC ACID IN THE PRESENCE OF AN ORGANIC SOLVENT WHICH IS IMMISCIBLE WITH AND RESISTANT TO OXIDATION BY NITRIC ACID.
1,2-DIARYL-ETHANOLS OF THE FORMULA
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