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1. 发明专利

JPH1112075A WATER-IN-OIL TYPE EMULSION EXPLOSIVE COMPOSITION 失效
公开(公告)号：JPH1112075A
公开(公告)日：1999-01-19
申请号：JP16143497
申请日：1997-06-18
申请人： NIPPON KOKI KK
发明人： OKITSU TOSHIHIRO , SUZUKI ATSUSHI
IPC分类号： C06B47/14
摘要： PROBLEM TO BE SOLVED: To enhance the explosion density and maintain the low-temperature sensitivity, sympathetic detonation sensitivity, trajectory mortar ratio and detonation velocity at high performances by using an oxidizing water-soluble component containing an aqueous solution of hydroxylamine nitrate. SOLUTION: This composition is explosives composed of 5-25 wt.% aqueous solution of hydroxylamine nitrate at >=30% concentration, an oxidizing water-soluble component at pH4-7 composed of 50-75 wt.% ammonium nitrate, 3-25 wt.% auxiliary oxidizing agent comprising other nitrates or perchlorates, 0.10-1.00 wt.% pH stabilizer comprising acetic acid (sodium acetate) or citric acid (sodium citrate) and 5-20 wt.% water, 1.5-5.0 wt.% carbonaceous fuel component, an emulsifying agent component composed of 2.0-5.0 wt.% sorbitan fatty acid ester type emulsifying agent and 0.10-30.0 wt.% at least one or more specific gravity regulators selected from of a chemical foaming agent, a glassy hollow microsphere, a resinous hollow microsphere and a ceramic hollow microsphere and has 0.50-1.25 g/cc density.

2. 发明专利

JPH0861897A CARTRIDGE 失效
公开(公告)号：JPH0861897A
公开(公告)日：1996-03-08
申请号：JP19151894
申请日：1994-08-15
申请人： NIPPON KOKI KK
发明人： OKITSU TOSHIHIRO , SUZUKI NAOTO
IPC分类号： F42B3/00 , F42B3/18
摘要： PURPOSE: To eliminate static electricity generated at the time of loading explosive powder, etc., by forming an igniter inserting hole opened at an igniter support protrusion made of a conductive material toward the outside and to be inserted with an igniter by allowing it to protrude from the one end face of a cartridge body made of resin inward. CONSTITUTION: A through hole 23 is formed at the one end face 13 of a cartridge body 11. An igniter supporting protrusion 25 made of a conductive material is inserted into the hole 23. The protrusion 25 is formed of resin mixed with several % of carbon. An igniter insertion hole 33 opened at the center of the protrusion 25 toward a collar 29 and to be inserted with an igniter 31 is formed. Explosive powder, etc., is filled in the body 11 in the state that a ground rod is inserted into the hole 33 of the protrusion 25. Static electricity generated at the time of loading the explosive powder, etc., is grounded via the protrusion 25 and the rod, and hence the electricity generated at the time of loading the explosive powder, etc., can be effectively removed.

3. 发明专利

JPH07144990A HEAVY ANFO EXPLOSIVE COMPOSITION 失效
公开(公告)号：JPH07144990A
公开(公告)日：1995-06-06
申请号：JP29075393
申请日：1993-11-19
申请人： NIPPON KOKI KK
发明人： OKITSU TOSHIHIRO , SUZUKI ATSUSHI , YOSHIZAWA SATOSHI
IPC分类号： C06B31/28 , C06B47/14
摘要： PURPOSE:To produce a heavy ANFO explosive composition having a detonation propagating property even with a small diameter, having water resistance, with the afterdamp ameliorated and excellent in ageing stability. CONSTITUTION:This composition consists of =40 pts.wt. of a water-resistant prilled ammonium nitrate consisting of prilled ammonium nitrate and/or granular ammonium nitrate and the molten wax. The density is preferably controlled to =60 pts.wt, the viscosity to

4. 发明专利

JPH09124387A NONEXPLOSIVE DELAY BLASTING IGNITER 失效
公开(公告)号：JPH09124387A
公开(公告)日：1997-05-13
申请号：JP23050996
申请日：1996-08-30
申请人： NIPPON KOKI KK
发明人： OKITSU TOSHIHIRO , KOBAYASHI TAKESHI
IPC分类号： F42B3/12 , C06B33/00 , C06C5/06 , C06C7/00 , C06C9/00
摘要： PROBLEM TO BE SOLVED: To provide a nonexplosive delay blasting igniter consisting of nonexplosive components which are exclusive for nonexplosive crushing agents. SOLUTION: In this nonexplosive delay blasting igniter, an igniter cartridge 1 and a stopper 8 having a bridge wire are installed, while an igniter 7, a delay element 14 and an ignition element 2 are filled under a pressure in the igniter cartridge 1 and an ignition relay element 13 is filled under a pressure between the igniter 7 and the delay element 14. The igniter 7 comprises B/BaCrO4 =3-12 wt.%/88-97wt.% or B/CuO=8-35wt.%/65-92wt.%, the delay element 14 comprises B/BaCrO4 =5wt.%/95wt.% or Mg/FeSi/BaCrO4 =5-15wt.%/5-10wt.%/75-95wt.%, the ignition element 2 comprises B/Al/CuO=2-5wt.%/10-20wt.%/70-90wt.% and the ignition relay element 13 comprises B/CuO=8-35wt.%/65-92wt.%.

5. 发明专利

JPH06279163A COLORED SMOKE GENERATING COMPOSITION 失效
公开(公告)号：JPH06279163A
公开(公告)日：1994-10-04
申请号：JP6534893
申请日：1993-03-24
申请人： NIPPON KOKI KK
发明人： OKITSU TOSHIHIRO , KAWAHORI MASAYUKI , SUZUKI NAOTO
IPC分类号： C06D3/00
摘要： PURPOSE:To reduce friction sensitivity by blending NaN3 with a smoke carrier, a dye, a coolant and a binder in a specified weight ratio. CONSTITUTION:A mixture is prepd. by gently mixing 20-30wt.% NaN3 having satisfactory reaction retentivity with 5-15wt.% smoke carrier such as lactic acid 0-15wt.% coolant such as NaHCO3 and 0-12 25.% binder such as synthetic resin. The mixture is kneaded with 45-55wt.% dye having satisfactory high temp. stability and small heat of evaporation and the kneaded material is granulated, dried and compacted into a doughnut shape, etc., to obtain the objective colored smoke generating compsn. having low friction sensitivity.

6. 发明专利

JP2000233988A GRANULAR EXPLOSIVE COMPOSITION 失效
公开(公告)号：JP2000233988A
公开(公告)日：2000-08-29
申请号：JP3287699
申请日：1999-02-10
申请人： NIPPON KOKI KK
发明人： CHO DAIGIYOKU , OKITSU TOSHIHIRO
IPC分类号： C06B31/42 , C06B45/24 , C06B45/26 , C06B45/32 , C06B45/36
摘要： PROBLEM TO BE SOLVED: To enhance water resistance of the composition and to maintain and improve its performance by coating (or mixing) ammonium nitrate used as the main component of a granular explosive composition, with a coating agent. SOLUTION: In the preparation of this composition: (1) ammonium nitrate, i.e., a main component of the composition, is coated with a coating agent; (2) a powdery metal is added to and mixed into the coated ammonium nitrate described in the item (1); (3) the coating agent described in the item (1) is a mixture of at least three materials selected from three groups of materials respectively, wherein the three groups are a group of waxes, a group of polymers such as polystyrene, polyvinyl acetate, ethyl cellulose and nitrocellulose, and a group of aromatic dinitro compounds; (4) the powdery metal described in the item (2) is at least one powdery metal selected from powdery aluminum, magnesium, magnalium and ferrosilicon; (5) in the item (1) or (2), a water-insoluble void-filler material is added to the interparticle spaces of ammonium nitrate particles and mixed into them; (6) the void-filler material described in the item (5) consists of gelatinized granules; and (7) the gelatinized granules described in the item (6) are obtained by granulating a gelatinized material formed from water or an oxidizing agent aqueous solution and a water-soluble thickening agent such as guar gum or locust-bean gum.

7. 发明专利

JP2000178093A WATERDROP-IN-OIL (W/O) TYPE EMULSION EXPLOSIVE COMPOSITION 失效
公开(公告)号：JP2000178093A
公开(公告)日：2000-06-27
申请号：JP35778098
申请日：1998-12-16
申请人： NIPPON KOKI KK
发明人： OKITSU TOSHIHIRO , NAGASE ATSUSHI
IPC分类号： C06B31/28 , C06B47/14
摘要： PROBLEM TO BE SOLVED: To enhance explosive power of an explosive composition without reducing its performance with respect to low-temperature initiation sensitivity and sympathetic detonation sensitivity and also without adversely affecting its aging stability by controlling the degrees of oxygen excess/shortage of emulsion base materials before and after the addition of a metallic heat-generating agent within their respective specified ranges. SOLUTION: This w/o type emulsion explosive composition comprises: a discontinuous phase consisting of ammonium nitrate, another oxidizing salt(s), water and an organic amine oxidizing salt(s); a continuous phase consisting of petroleum hydrocarbons and an emulsifier suitable for forming a w/o type emulsion; a specific-gravity adjusting agent; and 3-20 wt.% of a metallic heat-generating agent, wherein the explosive composition contains water (or water content) in a 5-20 wt.% ratio of the water to the whole explosive composition, and also, the degree of oxygen excess/shortage of an emulsion base material having a composition before the addition of the metallic heat-generating agent, is adjusted to -5.00 to +3.00 g/100 g and the degree of oxygen excess/shortage of another emulsion base material having a composition after the addition of the metallic heat-generating agent, is adjusted to -20.00 to -4.00 g/100 g, and further, as the metallic heat-generating agent, a powdery or flaky metallic heat-generating agent having a particle size distribution such that the weight ratio of the particle fraction passing through a sieve of the sieve designation 149 μm specified in JIS or other equivalent standards) to the total weight of all the particles is >=90 wt.%, is preferred.

8. 发明专利

JPH11209192A WATER DROP-IN-OIL TYPE EMULSION EXPLOSIVE COMPOSITION 失效
公开(公告)号：JPH11209192A
公开(公告)日：1999-08-03
申请号：JP1235798
申请日：1998-01-26
申请人： NIPPON KOKI KK
发明人： OKITSU TOSHIHIRO , SUZUKI ATSUSHI , SUZUKI NAOTO
IPC分类号： C06B47/14
摘要： PROBLEM TO BE SOLVED: To provide a powerful water drop-in-oil type emulsion explosive composition excellent in aging stability. SOLUTION: In the water drop-in-oil type emulsion explosive composition consisting of a discontinuous phase, a continuous phase, a water drop-in-oil type emulsifier, a specific gravity modifier and aluminium, aluminium coated with a coating agent consisting of a lipophilic substance or a specific inactive substance is added to an emulsion matrix. As the lipophilic substance, microcrystalline wax or paraffin wax is used. As the specific inactive substance, fluorine rubber, aluminium phosphate, oxidized wax, carnauba wax and synthetic wax are used. The coating agent is 1 to 5 wt.% to total weight of the aluminium. The aluminium coated with the coating agent is 3 to 7 wt.% to total weight of the explosive.

9. 发明专利

JPH1129389A NON GUNPOWDER FRAGMENTING COMPOSITION 失效
公开(公告)号：JPH1129389A
公开(公告)日：1999-02-02
申请号：JP18088997
申请日：1997-07-07
申请人： NIPPON KOKI KK
发明人： OKITSU TOSHIHIRO , SATO HIDEYA
IPC分类号： E04G23/08 , B02C19/18 , C06B33/02 , C06D5/00 , C06D5/06 , C09K3/00
摘要： PROBLEM TO BE SOLVED: To reduce the sensitivity of a conventional non gunpowder fragmenting composition of an inflammable solid material of a dangerous material classified as the first kind in the second class to the less sensitive inflammable solid material of the dangerous material classified as the second kind in the second class or lower. SOLUTION: This non gunpowder fragmenting composition is constituted by a thermit agent consisting of aluminum and cupric oxide, a gas evolving agent consisting of an alum, a binder consisting of vinyl chloride, and a desensitizing agent consisting of any one of stearic acid salt, an oxalic acid salt, a carbonic acid salt, a bicarbonic acid salt or a microcrystalline wax having >=80 deg.C melting point. As the stearic acid salt, calcium stearate, magnesium stearate, aluminum stearate and zinc stearate are cited. As the oxalic acid salt, magnesium oxalate is cited. As the carbonic acid salt, magnesium carbonate is cited. As the bicarbonic acid salt, sodium bicarbonate is cited. The content of the desensitizing agent is in a range of 0.5-5.0 wt.%, especially 0.7-3.0 wt.%. As the alum, potassium alum or ammonium alum is cited.

10. 发明专利

JPH07223887A HARDLY ELECTRIFIED SELF-FLOWING EXPLOSIVE COMPOSITION 失效
公开(公告)号：JPH07223887A
公开(公告)日：1995-08-22
申请号：JP1649194
申请日：1994-02-10
申请人： NIPPON KOKI KK
发明人： OKITSU TOSHIHIRO , SUZUKI ATSUSHI , SUZUKI NAOTO
IPC分类号： C06B31/28
摘要： PURPOSE:To obtain a hardly electrified, water-resistant and self-flowing explosive composition having enhanced water resistance and hardly electrifying properties. CONSTITUTION:This composition comprises a powdery or a granular mixture composed of an ammonium nitrate fuel oil (ANFO) explosive or ammonium nitrate and/or other oxidizing agents, a microcrystalline wax or a paraffin wax which has >=60 deg.C melting point and is solid at normal temperature and a metallic salt of a fatty acid. The powdery or granular mixture and the metallic salt of the fatty acid are coated with the microcrystalline wax or paraffin wax which has >=60 deg.C melting point and is a solid at normal temperature in a molten state. The metallic salt of the fatty acid is calcium stearate or a mixture of the calcium stearate with an alkaline earth metallic salt of stearic acid such as barium stearate, magnesium stearate or zinc stearate and the amount thereof is

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