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1. 发明专利

AT44724T 未知
公开(公告)号：AT44724T
公开(公告)日：1989-08-15
申请号：AT85103359
申请日：1985-03-22
申请人： TOSHIBA TUNGALOY CO LTD
发明人： HIRANO SHIN-ICHI , NAKA SHIGEHARU
IPC分类号： C04B35/583 , C01B21/064 , C04B35/58 , C04B35/5831
摘要： Disclosed are a method for preparing a sintered body containing cubic boron nitride which comprise the steps ofcontacting a starting material containing boron nitride and/or a starting material containing at least one selected from the group consisting of metals of groups IVa, Va and Via of the periodic table, silicon, aluminum, iron group metals and compounds of the aforesaid metals with at least one selected from the group consisting of borazine, a borazine derivative and a compound composed of boron, nitrogen and hydrogen as will release hydrogen by a thermal decomposition under pressure to form boron nitride; andsintering the material under conditions of a predetermined pressure and temperature under which cubic boron nitride is kept stable; and a method for preparing cubic boron nitride which comprises, in addition to the above steps, recovering cubic boron nitride from the obtained sintered body by a chemical and/or physical manner.These methods are considered to be greatly valuable from the viewpoint of industrial usefulness, because of being simple, very high in efficiency and excellent in economy.

2. 发明专利

AT44019T 未知
公开(公告)号：AT44019T
公开(公告)日：1989-06-15
申请号：AT84114769
申请日：1984-12-05
申请人： TOSHIBA TUNGALOY CO LTD
发明人： HIRANO SHIN-ICHI , NAKA SHIGEHARU
IPC分类号： B01J3/06 , C01B21/064

3. 发明专利

DE3571602D1 METHOD FOR PREPARING SINTERED BODY CONTAINING CUBIC BORON NITRIDE AND METHOD FOR PREPARING CUBIC BORON NITRIDE 未知
公开(公告)号：DE3571602D1
公开(公告)日：1989-08-24
申请号：DE3571602
申请日：1985-03-22
申请人： TOSHIBA TUNGALOY CO LTD
发明人： HIRANO SHIN-ICHI , NAKA SHIGEHARU
IPC分类号： C04B35/583 , C01B21/064 , C04B35/58 , C04B35/5831
摘要： Disclosed are a method for preparing a sintered body containing cubic boron nitride which comprise the steps ofcontacting a starting material containing boron nitride and/or a starting material containing at least one selected from the group consisting of metals of groups IVa, Va and Via of the periodic table, silicon, aluminum, iron group metals and compounds of the aforesaid metals with at least one selected from the group consisting of borazine, a borazine derivative and a compound composed of boron, nitrogen and hydrogen as will release hydrogen by a thermal decomposition under pressure to form boron nitride; andsintering the material under conditions of a predetermined pressure and temperature under which cubic boron nitride is kept stable; and a method for preparing cubic boron nitride which comprises, in addition to the above steps, recovering cubic boron nitride from the obtained sintered body by a chemical and/or physical manner.These methods are considered to be greatly valuable from the viewpoint of industrial usefulness, because of being simple, very high in efficiency and excellent in economy.

4. 发明专利

DE3478678D1 METHOD FOR PREPARING BORON NITRIDE 未知
公开(公告)号：DE3478678D1
公开(公告)日：1989-07-20
申请号：DE3478678
申请日：1984-12-05
申请人： TOSHIBA TUNGALOY CO LTD
发明人： HIRANO SHIN-ICHI , NAKA SHIGEHARU
IPC分类号： B01J3/06 , C01B21/064

5. 发明专利

JPS60200864A MANUFACTURE OF SINTERED BODY CONTAINING CUBIC BORON NITRIDE 失效
公开(公告)号：JPS60200864A
公开(公告)日：1985-10-11
申请号：JP5465684
申请日：1984-03-22
申请人： TOSHIBA TUNGALOY CO LTD
发明人： NAKA SHIGEHARU , HIRANO SHINICHI
IPC分类号： C04B35/583 , C01B21/064 , C04B35/58 , C04B35/5831
摘要： Disclosed are a method for preparing a sintered body containing cubic boron nitride which comprise the steps ofcontacting a starting material containing boron nitride and/or a starting material containing at least one selected from the group consisting of metals of groups IVa, Va and Via of the periodic table, silicon, aluminum, iron group metals and compounds of the aforesaid metals with at least one selected from the group consisting of borazine, a borazine derivative and a compound composed of boron, nitrogen and hydrogen as will release hydrogen by a thermal decomposition under pressure to form boron nitride; andsintering the material under conditions of a predetermined pressure and temperature under which cubic boron nitride is kept stable; and a method for preparing cubic boron nitride which comprises, in addition to the above steps, recovering cubic boron nitride from the obtained sintered body by a chemical and/or physical manner.These methods are considered to be greatly valuable from the viewpoint of industrial usefulness, because of being simple, very high in efficiency and excellent in economy.

6. 发明专利

JPH0613433B2 失效
公开(公告)号：JPH0613433B2
公开(公告)日：1994-02-23
申请号：JP12555292
申请日：1992-04-17
申请人： TOSHIBA TUNGALOY CO LTD
发明人： NAKA SHIGEHARU , HIRANO SHINICHI
IPC分类号： C04B35/583 , C04B35/58 , C22C29/16

7. 发明专利

JPS60204607A SYNTHESIS OF CUBIC BORON NITRIDE CRYSTAL 失效
公开(公告)号：JPS60204607A
公开(公告)日：1985-10-16
申请号：JP6347284
申请日：1984-03-30
申请人： TOSHIBA TUNGALOY CO LTD , NGK INSULATORS LTD
发明人： NAKA SHIGEHARU , HIRANO SHINICHI
IPC分类号： B01J3/06 , C01B21/064
摘要： PURPOSE:To synthesize a cubic boron nitride crystal, in an extremely high conversion, by reacting a mixture of boron nitride and a catalyst composed of a metal or metallic compound under specific condition, and removing the catayst from the reaction product. CONSTITUTION:50-95mol% boron nitride obtained by the thermal decomposition of borazine and/or a borazine derivtive is mixed with 5-50mol% catalyst composed of a metal and/or a metallic compound, e.g. aluminum nitride. The mixture is made to react under >=3GPa pressure at >=70 deg.C, and the catalyst is removed from the reaction product to obtain the objective cubic boron nitride crystal.

8. 发明专利

JPH0472792B2 失效
公开(公告)号：JPH0472792B2
公开(公告)日：1992-11-19
申请号：JP5465684
申请日：1984-03-22
申请人： TOSHIBA TUNGALOY CO LTD
发明人： NAKA SHIGEHARU , HIRANO SHINICHI
IPC分类号： C04B35/583 , C01B21/064 , C04B35/58 , C04B35/5831
摘要： Disclosed are a method for preparing a sintered body containing cubic boron nitride which comprise the steps ofcontacting a starting material containing boron nitride and/or a starting material containing at least one selected from the group consisting of metals of groups IVa, Va and Via of the periodic table, silicon, aluminum, iron group metals and compounds of the aforesaid metals with at least one selected from the group consisting of borazine, a borazine derivative and a compound composed of boron, nitrogen and hydrogen as will release hydrogen by a thermal decomposition under pressure to form boron nitride; andsintering the material under conditions of a predetermined pressure and temperature under which cubic boron nitride is kept stable; and a method for preparing cubic boron nitride which comprises, in addition to the above steps, recovering cubic boron nitride from the obtained sintered body by a chemical and/or physical manner.These methods are considered to be greatly valuable from the viewpoint of industrial usefulness, because of being simple, very high in efficiency and excellent in economy.

9. 发明专利

JPS61117107A Amorphous boron niride powder and its preparation 失效
标题翻译：不育硼砂粉及其制备
公开(公告)号：JPS61117107A
公开(公告)日：1986-06-04
申请号：JP23855084
申请日：1984-11-14
申请人： Toshiba Tungaloy Co Ltd
发明人： HIRANO SHINICHI , NAKA SHIGEHARU
IPC分类号： C04B35/626 , C01B21/064 , C04B35/58
摘要： PURPOSE: To prepare fine spherical amorphous boron nitride powder cong. hydrogen being useful as a material for electronic parts and cutting tool, etc. by decomposing thermally a compd. selected from boranizne or boranzine derivs. under pressure and specified conditions.
CONSTITUTION: A least one compd. selected from boranzine expressed by the formula (I) and boranzine derivs [e.g. borazo naphthalene expessed by the formula (II)] is decomposed thermally at 200W350°C, under 10W100MPa for 5W30min. Thus, amorphous boron nitride powder contg. H and comprising spherical fine particles is obtd. The particle size of the spherical amorphous boron nitride powder is usually so fine as 1W4μm.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：制备球状无定形氮化硼粉末微球。氢可用作电子部件和切削工具等的材料，通过热分解。选自硼烷或硼烷衍生物。在压力和规定的条件下。构成：至少有一个compd 选自由式（I）表示的硼氮嗪和硼烷衍生物[例如由式（II）表示的硼氮萘在200-350℃，10-100MPa下热分解5-30分钟。因此，无定形氮化硼粉末 H并且包含球形细颗粒。球状无定形氮化硼粉末的粒径通常为1-4μm。

10. 发明专利

JPS60246208A PREPARATION OF BORON NITRIDE 失效
公开(公告)号：JPS60246208A
公开(公告)日：1985-12-05
申请号：JP10068284
申请日：1984-05-21
申请人： TOSHIBA TUNGALOY CO LTD
发明人： HIRANO SHINICHI , NAKA SHIGEHARU
IPC分类号： B01J3/06 , C01B21/064
摘要： PURPOSE:To obtain amorphous boron nitride useful as a raw material for boron nitride of cubic system, having high conversion ratio to boron nitride of cubic system, by decomposing thermally borazine or its derivative at a specific temperature and pressure under pressure. CONSTITUTION:At least one compound selected from borazine and its derivative is thermally decomposed under pressure at 150-700 deg.C at >=10MPa pressure. Borazonaphthalene shown by the formula I, 2,4-diaminoborazine shown by the formula II, etc. may be cited as the borazine derivative. A content of hydrogen in the prepared amorphous boron nitride is reduced with rise in thermal decomposition temperature, and conversion ratio to boron nitride of cubic system is simultaneously lowered, so that the thermal decomposition temperature is set preferably at =150 deg.C.

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