WO2009038217A1 - 無水第二リン酸力ルシウム粒子およびその製造方法 - Google Patents
無水第二リン酸力ルシウム粒子およびその製造方法 Download PDFInfo
- Publication number
- WO2009038217A1 WO2009038217A1 PCT/JP2008/067358 JP2008067358W WO2009038217A1 WO 2009038217 A1 WO2009038217 A1 WO 2009038217A1 JP 2008067358 W JP2008067358 W JP 2008067358W WO 2009038217 A1 WO2009038217 A1 WO 2009038217A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- aggregated
- dicalcium phosphate
- phosphate particles
- anhydrous dicalcium
- calcium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/26—Phosphates
- C01B25/32—Phosphates of magnesium, calcium, strontium, or barium
- C01B25/322—Preparation by neutralisation of orthophosphoric acid
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES, NOT OTHERWISE PROVIDED FOR; PREPARATION OR TREATMENT THEREOF
- A23L29/00—Foods or foodstuffs containing additives; Preparation or treatment thereof
- A23L29/015—Inorganic compounds
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23P—SHAPING OR WORKING OF FOODSTUFFS, NOT FULLY COVERED BY A SINGLE OTHER SUBCLASS
- A23P10/00—Shaping or working of foodstuffs characterised by the products
- A23P10/20—Agglomerating; Granulating; Tabletting
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/02—Inorganic compounds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/20—Pills, tablets, discs, rods
- A61K9/2004—Excipients; Inactive ingredients
- A61K9/2009—Inorganic compounds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/20—Pills, tablets, discs, rods
- A61K9/2095—Tabletting processes; Dosage units made by direct compression of powders or specially processed granules, by eliminating solvents, by melt-extrusion, by injection molding, by 3D printing
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
Definitions
- the present invention relates to anhydrous dicalcium phosphate particles, a production method thereof, and an excipient using the same. That is, the present invention relates to anhydrous dicalcium phosphate particles suitable as excipients, powders, capsule filling powders or nucleating agents for pharmaceuticals and food additives, and a method for producing the same. Specifically, it is an agglomerate, its variation in the agglomerate size is small, its bulk is low, and its fluidity is high. The present invention relates to anhydrous dicalcium phosphate particles from which a small tablet can be obtained by a direct compression method and a method for producing the same. Background art
- Anhydrous dibasic calcium phosphate particles were produced by heating a hydrous dibasic calcium phosphate aqueous suspension at 50 to 100 ° C.
- calcium compounds such as slaked lime and phosphoric acid were mixed with 50 to 10 ° C. It is also synthesized by reacting at 0 ° C, and it is processed not only as the above-mentioned excipient, but also into powders or powders for capsule filling and used as a source for supplying calcium and phosphate components and as an abrasive for dentifrice. Are also used.
- spherical anhydrous dicalcium phosphate particles having low bulk S and high fluidity are preferred from the viewpoint of handling properties.
- JP-A-5-9-2 2 3 2 0 6 discloses a known method for producing anhydrous dicalcium phosphate in which lime milk is added to a phosphoric acid aqueous solution heated at 75 to neutralize the reaction. Add phosphoric acid condensate in parallel with lime milk when fluid emulsification begins To obtain spherical anhydrous dicalcium phosphate.
- the obtained anhydrous dicalcium phosphate is excellent in fluidity and tabletability, but is bulky and has insufficient handling properties.
- Japanese Patent Application Laid-Open No. 592-23208 describes a known anhydrous dibasic calcium phosphate production method in which lime milk is added to a phosphoric acid aqueous solution heated to 75 ° C. and neutralized. It is disclosed that an anhydrous dicalcium phosphate in the form of agglomerates is obtained by adding an electrolyte in parallel with lime milk when the reaction solution starts to become milky. The agglomerated anhydrous dicalcium phosphate obtained is a dentifrice abrasive, and there is no mention of tabletability as a solid preparation.
- the electrolyte added in the production method includes a salt of an alkali metal, alkaline earth metal or aluminum group metal with phosphoric acid, sulfuric acid, hydrochloric acid and nitric acid.
- a salt of an alkali metal, alkaline earth metal or aluminum group metal with phosphoric acid, sulfuric acid, hydrochloric acid and nitric acid is low in bulk, has an excellent tableting property, and cannot produce an agglomerate having strong fluidity.
- conventional anhydrous dicalcium phosphate was unsatisfactory in both the ring ringability and tabletability. Disclosure of the invention
- the purpose of the present invention is to reduce the size variation of the aggregates of aggregated anhydrous dicalcium phosphate and improve the dispersibility of the aggregates, while reducing the bulk, increasing the tableting strength, excellent flowability and excellent
- An object of the present invention is to provide anhydrous dicalcium phosphate particles having handling properties.
- Another object of the present invention is to provide anhydrous dicalcium phosphate particles that satisfy the conflicting requirements of good fluidity, low bulk, and excellent tabletability at the time of formulation, and a method for producing the same. is there.
- anhydrous dicalcium phosphate particles are required as excipients that are excellent in handling properties and have good tableting properties and are capable of obtaining small tablets.
- tabletteability is good means that the tableting hardness is high and that the cabbing is not likely to cause chipping
- good handling means that the fluidity is good and the bulk is low. Even if one of them is missing, the handling property deteriorates.
- the present inventor has reduced the size variation of the aggregates of the aggregated anhydrous dicalcium phosphate particles and increased the dispersibility of the aggregates, while reducing the bulk, increasing the tableting strength, and excellent fluidity and handling properties.
- Anhydrous dibasic calcium phosphate particles with an agglomerate have an average particle size of 15 to 70 m as measured by laser diffraction scattering method with a coefficient of variation of 55% or less and an apparent specific volume. It has been found that this can be achieved by adjusting the content to 0.5 to 1.5 mlZg or less.
- the preferable lower limit of the average particle diameter of 15 to 70 m is 20 m, and the preferable upper limit is 50 m.
- the preferred lower limit of the apparent specific volume of 0.5 to 1.5 ml / g is 0.7 mlZg, and the preferred upper limit is 1.3 mlZg. '
- the inventor of the present invention performs the neutralization reaction by heating the phosphoric acid compound and the calcium compound to 75 ° C. or higher in advance, and further causing the neutralization reaction to be performed in the presence of the Al force. It has been found that agglomerated anhydrous dicalcium phosphate particles can be obtained. Of course, the alkali does not include calcium compounds involved in the reaction. Therefore, in the present invention, the neutralization reaction is carried out in the presence of an alkali means in the presence of an alkaline force other than a calcium compound.
- the anhydrous dicalcium phosphate particles of the present invention can be obtained by neutralizing a water suspension of a phosphoric acid compound and a calcium compound by heating them in advance to 75 to 100, respectively.
- a preferred temperature is 75-85. If it is lower than 70, hydrates may be formed, and even if heated to a higher temperature at 100, the effect will increase dramatically. Is not economical because it cannot be expected.
- the reaction temperature only needs to be maintained at 75 to 105 ° C. However, considering the ratio of anhydrides in the reaction product, the reaction temperature should be 90 to More preferably, the temperature is controlled in the range of 105 ° C.
- the reaction is carried out by adding a phosphoric acid compound into a reaction vessel, heating and stirring, and then adding a calcium compound. After the reaction, wash, dehydrate and dry.
- the molar ratio of the calcium compound to the phosphoric acid compound is 0.8 to 1.0, but a preferred molar ratio is 0.9.
- Anhydrous dibasic calcium phosphate particles produced by the addition of Al in the neutralization reaction are agglomerated and have an apparent specific volume of 1.5 m 1 / g or less and improved fluidity.
- the addition of alkali begins to add calcium compound, mol of calcium compound to phosphate compound. It starts when the ratio (as the molar ratio of [CaO] / [H 3 P0 4 ]) is in the range of 0.2 to 0.5.
- the [Ca 2 O] includes the amount of calcium contained in the acidic calcium phosphate.
- the addition amount of Al force is adjusted so that the molar ratio of Al force to the phosphate compound (as the molar ratio of [Al force] / [Phosphate compound]) is 0.0015 to 0.35. It is desirable to adjust to 0.03 to 0.17. When the molar ratio is less than 0.015, the flowability of the product is poor and the bulk is high. When the molar ratio exceeds 0.35, unreacted lime remains in the product.
- Examples of the phosphoric acid compound used in the present invention include phosphoric acid, ammonium phosphate, and alkali metal phosphate. More specifically, phosphoric acid, sodium phosphate, potassium phosphate, and calcium phosphate solution can be used. This Of these, phosphoric acid or acidic calcium phosphate solutions are preferred, and phosphoric acid is the most preferred. These are all used as an aqueous solution.
- Examples of the calcium compound used in the present invention include calcium oxide (raw stone ash), calcium hydroxide (slaked lime), and calcium chloride. Of these, calcium hydroxide is most preferred because it can be used as lime milk simply by being dispersed in water at the time of use.
- sodium hydroxide, potassium hydroxide, aqueous ammonia and the like can be cited as examples of the alkaline power added during the neutralization reaction.
- sodium hydroxide and hydroxylated lithium are preferred.
- the following agglomerated anhydrous dicalcium phosphate particles and the following method of producing anhydrous dicalcium phosphate particles S are provided.
- the average particle diameter measured by the laser diffraction scattering method is 15 to 70 m, and the coefficient of variation of the particles with respect to the average particle diameter is 55% or less,
- a method for producing anhydrous dicalcium phosphate particles in which an aqueous suspension of dicalcium phosphate dihydrate formed from a neutralization reaction between a phosphate compound and a calcium compound is heated. And the calcium compound are heated in advance to 75 to 100 ° C. and neutralized in the presence of an alkali additive, and the aggregated aggregated anhydrous dicalcium phosphate particles (1) to (3) are characterized in that Production method.
- the alkali addition amount in (4) is such that the molar ratio of alkali to phosphoric acid compound is in the range of 0.015 to 0.350.
- a pharmaceutical nucleating agent comprising the aggregated anhydrous dicalcium phosphate particles according to (1) to (3) above.
- the aggregated aggregated anhydrous calcium phosphate particles are preferably contained in an amount of 1 to 95% by weight. Furthermore, in the pharmaceutical products in the dosage forms such as (11) and (1 2) above, the active ingredient (main drug), excipient containing aggregated anhydrous calcium diphosphate particles, lubricant, etc. account for 85 to 97% by weight. Is preferred.
- FIG. 1 shows the aggregated dicalcium phosphate anhydrous of the present invention obtained in Synthesis Example 1 of Example 1. It is an X-ray diffraction pattern of shim particles.
- FIG. 2 is an X-ray diffraction pattern of dicalcium phosphate particles described in JCPDS.
- FIG. 3 is an electron micrograph of the aggregated aggregated anhydrous calcium phosphate particles of the present invention obtained in Synthesis Example 1 of Example 1. BEST MODE FOR CARRYING OUT THE INVENTION
- CaO 80 g / L lime milk 2.6 L and 405 gZL phosphoric acid aqueous solution 1 L were prepared by heating to 85 ° C, respectively.
- the aqueous phosphoric acid solution heated to 85 ° C was placed in the reaction tank, and the lime milk heated to 85 was poured while stirring.
- the addition of an aqueous sodium hydroxide solution to the reaction vessel was started.
- the total amount of sodium hydroxide solution added is the molar ratio [Na] /
- FIGS. 1 and 2 show X-ray diffraction patterns of the obtained aggregated anhydrous dicalcium phosphate particles of the present invention and X-ray diffraction images of dicalcium phosphate particles described in JCPDS for comparison, respectively.
- Figure 3 shows an electron micrograph of the aggregated anhydrous diphosphate phosphate particles.
- J CPDS is an abbreviation for “JointCommitteeof Powde rDif r acion on St and a r d s”, which is the standard XRD database of powder samples.
- Spherical anhydrous dicalcium phosphate particles were obtained as a result of the same reaction as in Synthesis Example 1 except that pyrophosphoric acid was added at a weight ratio of [Pyrophosphoric acid] / [CaO] 20% instead of the aqueous sodium hydroxide solution.
- Table 1 shows the reaction conditions and measured physical properties.
- CaO 80 gZL lime milk 2.6 L and 405 g / L phosphoric acid aqueous solution 1 L were prepared by heating to 75 ° C., respectively.
- the aqueous phosphoric acid solution heated at 75 was placed in the reaction tank, and lime milk heated to 75 ° C. was poured with stirring.
- the pouring of the aqueous potassium hydroxide solution into the reaction vessel was started.
- the total amount of the aqueous potassium hydroxide solution was adjusted so that the molar ratio [K] / [P] was 0.35.
- the temperature of the reaction solution was maintained at 85 ° C or higher.
- the resulting slurry was washed and dried to obtain agglomerated anhydrous dicalcium phosphate particles.
- Table 1 shows the reaction conditions and measured physical properties.
- Synthesis Example 4 hydrates were formed because the aqueous suspensions of the phosphate compound and the calcium compound were not heated appropriately in advance.
- the addition start time of alkali was not within the preferred range disclosed in the present invention, so that the fluidity of the product deteriorated or became bulky.
- the amount of addition of Al force was too small compared with the preferred range of the present invention, so that the flowability of the product was poor and the bulk was high.
- the amount of added alcohol was too much compared with the preferred range of the present invention, so the product was Unreacted lime remained on the surface.
- the agglomerated anhydrous dicalcium phosphate particles produced by the method of the present invention have a low volume and a high fluidity, and thus have excellent meterability and handling properties. It is also ideal for use as a powder as it is.
- Table 2 shows the results of tableting of the anhydrous dicalcium phosphate particles obtained in each synthesis example of Example 1 using a static compressor. At this time, the diameter of the punch was ⁇ 10 mm, the tablet weight was 500 mg, and the tableting pressure was 1 t.
- the aggregated dibasic anhydrous phosphate particles of the present invention are suitable as excipients because they are thin and high in tableting hardness when used alone.
- Table 2
- the anhydrous dicalcium phosphate particles obtained in each synthesis example of Example 1 were encapsulated to confirm the presence or absence of powder (particles) adhering to the capsule surface.
- Capsule filling is performed by using a capsule filling machine (trade name: c 4 0 l ZW a 1 den) and a damper (trade name: c 4 0 2 / W a 1 den), and the capsule is made of gelatin. Psel (W a 1 den) was used. The amount of powder set to the holder was 50.
- the aggregated dibasic anhydrous calcium phosphate of the present invention has no adhesion to the capsule wall surface and has a good production efficiency of the force push agent and is suitable for the force push filler. is there. Table 3
- the production method of the present invention can provide an agglomerated anhydrous dicalcium phosphate particle excipient that is easy to handle and suitable for obtaining small tablets by direct compression. Furthermore, since the bulk S is low and the fluidity is high, it is possible to provide aggregated anhydrous dicalcium phosphate particles that are excellent in meterability and handling properties and are suitable for powders or capsule fillers.
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Abstract
Description
Claims
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP08832423.1A EP2208705B1 (en) | 2007-09-20 | 2008-09-18 | Calcium secondary phosphate anhydride particle and method for producing the same |
| KR1020107003341A KR101199813B1 (ko) | 2007-09-20 | 2008-09-18 | 무수 제 2 인산칼슘 입자 및 그 제조 방법 |
| DK08832423.1T DK2208705T3 (en) | 2007-09-20 | 2008-09-18 | Secondary calciumphosphatanhydrid particle and the process for preparing the |
| ES08832423.1T ES2540732T3 (es) | 2007-09-20 | 2008-09-18 | Partícula de anhídrido de fosfato secundario de calcio y método para su producción |
| US12/733,790 US20100196500A1 (en) | 2007-09-20 | 2008-09-18 | Anhydrous dicalcium phosphate particles and production method thereof |
| JP2009533218A JP5093907B2 (ja) | 2007-09-20 | 2008-09-18 | 無水第二リン酸カルシウム粒子およびその製造方法 |
| US14/619,563 US20150151969A1 (en) | 2007-09-20 | 2015-02-11 | Anhydrous dicalcium phosphate particles and production method thereof |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007243488 | 2007-09-20 | ||
| JP2007-243488 | 2007-09-20 |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US12/733,790 A-371-Of-International US20100196500A1 (en) | 2007-09-20 | 2008-09-18 | Anhydrous dicalcium phosphate particles and production method thereof |
| US14/619,563 Division US20150151969A1 (en) | 2007-09-20 | 2015-02-11 | Anhydrous dicalcium phosphate particles and production method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2009038217A1 true WO2009038217A1 (ja) | 2009-03-26 |
Family
ID=40468024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2008/067358 Ceased WO2009038217A1 (ja) | 2007-09-20 | 2008-09-18 | 無水第二リン酸力ルシウム粒子およびその製造方法 |
Country Status (7)
| Country | Link |
|---|---|
| US (2) | US20100196500A1 (ja) |
| EP (1) | EP2208705B1 (ja) |
| JP (1) | JP5093907B2 (ja) |
| KR (1) | KR101199813B1 (ja) |
| DK (1) | DK2208705T3 (ja) |
| ES (1) | ES2540732T3 (ja) |
| WO (1) | WO2009038217A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113548653A (zh) * | 2021-07-14 | 2021-10-26 | 湖州展望药业有限公司 | 一种具有直压功能的药用辅料无水磷酸氢钙生产工艺 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2018115132A (ru) * | 2015-09-25 | 2019-10-25 | Клин Уорлд Текнолоджиз Лтд. | Производство составов фосфата кальция |
| JP6164628B1 (ja) | 2017-03-30 | 2017-07-19 | 富田製薬株式会社 | 無水リン酸水素カルシウム、及びその製造方法 |
| CN111719128B (zh) * | 2020-08-04 | 2021-06-01 | 中国科学院兰州化学物理研究所 | 一种硫代钼酸铵复合多孔非晶碳超滑薄膜的制备方法 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5131238B1 (ja) | 1969-09-16 | 1976-09-06 | ||
| JPS59223207A (ja) * | 1983-05-30 | 1984-12-15 | Toyo Sutoufuaa Chem:Kk | 凝集塊状無水第二リン酸カルシウム及びその製造方法 |
| JPS59223208A (ja) | 1983-05-30 | 1984-12-15 | Toyo Sutoufuaa Chem:Kk | 凝集塊状無水第二リン酸カルシウムの製造方法 |
| JPS59223206A (ja) | 1983-05-30 | 1984-12-15 | Toyo Sutoufuaa Chem:Kk | 球状無水第二リン酸カルシウムの製造方法 |
| JP2005289763A (ja) * | 2004-04-02 | 2005-10-20 | Yahashi Kogyo Kk | リン酸水素カルシウムの製造方法 |
| JP2007126452A (ja) * | 2005-10-05 | 2007-05-24 | Otsuka Pharmaceut Co Ltd | 医薬組成物 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3829562A (en) * | 1971-06-07 | 1974-08-13 | Monsanto Co | Dicalcium phosphate and its method of preparation |
| US4707361A (en) * | 1985-08-02 | 1987-11-17 | Stauffer Chemical Company | Granular anhydrous dicalcium phosphate compositions suitable for direct compression tableting |
| DE4122960C2 (de) | 1991-07-11 | 1994-03-31 | Benckiser Knapsack Ladenburg | Verfahren zur Herstellung von grobkörnigem Dicalciumphosphatanhydrid |
| IT1317998B1 (it) | 2000-06-26 | 2003-07-21 | Medical Internat Licensing N V | Valvola erogatrice per spray nasale. |
| TW200400062A (en) * | 2002-04-03 | 2004-01-01 | Mathys Medizinaltechnik Ag | Kneadable, pliable bone replacement material |
| TWI368509B (en) * | 2005-10-05 | 2012-07-21 | Otsuka Pharma Co Ltd | Antituberculous therapeutic drugs and kit containing the same |
-
2008
- 2008-09-18 US US12/733,790 patent/US20100196500A1/en not_active Abandoned
- 2008-09-18 ES ES08832423.1T patent/ES2540732T3/es active Active
- 2008-09-18 EP EP08832423.1A patent/EP2208705B1/en not_active Revoked
- 2008-09-18 DK DK08832423.1T patent/DK2208705T3/en active
- 2008-09-18 KR KR1020107003341A patent/KR101199813B1/ko not_active Expired - Fee Related
- 2008-09-18 WO PCT/JP2008/067358 patent/WO2009038217A1/ja not_active Ceased
- 2008-09-18 JP JP2009533218A patent/JP5093907B2/ja active Active
-
2015
- 2015-02-11 US US14/619,563 patent/US20150151969A1/en not_active Abandoned
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5131238B1 (ja) | 1969-09-16 | 1976-09-06 | ||
| JPS59223207A (ja) * | 1983-05-30 | 1984-12-15 | Toyo Sutoufuaa Chem:Kk | 凝集塊状無水第二リン酸カルシウム及びその製造方法 |
| JPS59223208A (ja) | 1983-05-30 | 1984-12-15 | Toyo Sutoufuaa Chem:Kk | 凝集塊状無水第二リン酸カルシウムの製造方法 |
| JPS59223206A (ja) | 1983-05-30 | 1984-12-15 | Toyo Sutoufuaa Chem:Kk | 球状無水第二リン酸カルシウムの製造方法 |
| JP2005289763A (ja) * | 2004-04-02 | 2005-10-20 | Yahashi Kogyo Kk | リン酸水素カルシウムの製造方法 |
| JP2007126452A (ja) * | 2005-10-05 | 2007-05-24 | Otsuka Pharmaceut Co Ltd | 医薬組成物 |
Non-Patent Citations (2)
| Title |
|---|
| "Kagaku Daijiten 7", 10 November 1979, KYORITSU SHUPPAN CO., LTD., pages: 606 - 609, XP008134309 * |
| See also references of EP2208705A4 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113548653A (zh) * | 2021-07-14 | 2021-10-26 | 湖州展望药业有限公司 | 一种具有直压功能的药用辅料无水磷酸氢钙生产工艺 |
| CN113548653B (zh) * | 2021-07-14 | 2022-07-19 | 湖州展望药业有限公司 | 一种具有直压功能的药用辅料无水磷酸氢钙生产工艺 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20150151969A1 (en) | 2015-06-04 |
| JPWO2009038217A1 (ja) | 2011-01-13 |
| US20100196500A1 (en) | 2010-08-05 |
| JP5093907B2 (ja) | 2012-12-12 |
| ES2540732T3 (es) | 2015-07-13 |
| EP2208705B1 (en) | 2015-06-17 |
| EP2208705A4 (en) | 2013-03-13 |
| DK2208705T3 (en) | 2015-09-14 |
| KR20100072168A (ko) | 2010-06-30 |
| EP2208705A1 (en) | 2010-07-21 |
| KR101199813B1 (ko) | 2012-11-09 |
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