GB1522182A - Ceramic material - Google Patents
Ceramic materialInfo
- Publication number
- GB1522182A GB1522182A GB30706/75A GB3070675A GB1522182A GB 1522182 A GB1522182 A GB 1522182A GB 30706/75 A GB30706/75 A GB 30706/75A GB 3070675 A GB3070675 A GB 3070675A GB 1522182 A GB1522182 A GB 1522182A
- Authority
- GB
- United Kingdom
- Prior art keywords
- precipitate
- ceramic
- hydroxylapatite
- polycrystalline
- collagen
- 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.)
- Expired
Links
- 229910010293 ceramic material Inorganic materials 0.000 title 1
- 239000000919 ceramic Substances 0.000 abstract 5
- 239000002244 precipitate Substances 0.000 abstract 5
- 239000011575 calcium Substances 0.000 abstract 4
- 229910052588 hydroxylapatite Inorganic materials 0.000 abstract 3
- XYJRXVWERLGGKC-UHFFFAOYSA-D pentacalcium;hydroxide;triphosphate Chemical group [OH-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O XYJRXVWERLGGKC-UHFFFAOYSA-D 0.000 abstract 3
- 102000008186 Collagen Human genes 0.000 abstract 2
- 108010035532 Collagen Proteins 0.000 abstract 2
- 239000011230 binding agent Substances 0.000 abstract 2
- 238000003776 cleavage reaction Methods 0.000 abstract 2
- 229920001436 collagen Polymers 0.000 abstract 2
- 239000011148 porous material Substances 0.000 abstract 2
- 230000007017 scission Effects 0.000 abstract 2
- 101100283604 Caenorhabditis elegans pigk-1 gene Proteins 0.000 abstract 1
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 abstract 1
- 229920000742 Cotton Polymers 0.000 abstract 1
- -1 Fluoride ions Chemical class 0.000 abstract 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 1
- 229920002319 Poly(methyl acrylate) Polymers 0.000 abstract 1
- 229920002472 Starch Polymers 0.000 abstract 1
- 239000012736 aqueous medium Substances 0.000 abstract 1
- 210000000988 bone and bone Anatomy 0.000 abstract 1
- 229910001424 calcium ion Inorganic materials 0.000 abstract 1
- 239000001506 calcium phosphate Substances 0.000 abstract 1
- 229910000389 calcium phosphate Inorganic materials 0.000 abstract 1
- 239000004068 calcium phosphate ceramic Substances 0.000 abstract 1
- 235000011010 calcium phosphates Nutrition 0.000 abstract 1
- 239000001913 cellulose Substances 0.000 abstract 1
- 238000005336 cracking Methods 0.000 abstract 1
- 238000000354 decomposition reaction Methods 0.000 abstract 1
- 238000000280 densification Methods 0.000 abstract 1
- 239000003814 drug Substances 0.000 abstract 1
- 229940079593 drug Drugs 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- CVPJXKJISAFJDU-UHFFFAOYSA-A nonacalcium;magnesium;hydrogen phosphate;iron(2+);hexaphosphate Chemical compound [Mg+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Fe+2].OP([O-])([O-])=O.OP([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O CVPJXKJISAFJDU-UHFFFAOYSA-A 0.000 abstract 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 abstract 1
- 229920003124 powdered cellulose Polymers 0.000 abstract 1
- 235000019814 powdered cellulose Nutrition 0.000 abstract 1
- 239000000376 reactant Substances 0.000 abstract 1
- 238000005245 sintering Methods 0.000 abstract 1
- 239000008107 starch Substances 0.000 abstract 1
- 235000019698 starch Nutrition 0.000 abstract 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 abstract 1
- 229910052591 whitlockite Inorganic materials 0.000 abstract 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/40—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material
- A61L27/44—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material having a macromolecular matrix
- A61L27/46—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material having a macromolecular matrix with phosphorus-containing inorganic fillers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K6/00—Preparations for dentistry
- A61K6/50—Preparations specially adapted for dental root treatment
- A61K6/54—Filling; Sealing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K6/00—Preparations for dentistry
- A61K6/70—Preparations for dentistry comprising inorganic additives
- A61K6/78—Pigments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K6/00—Preparations for dentistry
- A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
- A61K6/831—Preparations for artificial teeth, for filling teeth or for capping teeth comprising non-metallic elements or compounds thereof, e.g. carbon
- A61K6/838—Phosphorus compounds, e.g. apatite
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/02—Inorganic materials
- A61L27/12—Phosphorus-containing materials, e.g. apatite
-
- 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
- C01B25/327—After-treatment
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/447—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on phosphates, e.g. hydroxyapatite
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00179—Ceramics or ceramic-like structures
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00179—Ceramics or ceramic-like structures
- A61F2310/00185—Ceramics or ceramic-like structures based on metal oxides
- A61F2310/00203—Ceramics or ceramic-like structures based on metal oxides containing alumina or aluminium oxide
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00179—Ceramics or ceramic-like structures
- A61F2310/00293—Ceramics or ceramic-like structures containing a phosphorus-containing compound, e.g. apatite
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Medicinal Chemistry (AREA)
- Structural Engineering (AREA)
- Geology (AREA)
- Dermatology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Transplantation (AREA)
- Environmental & Geological Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Dentistry (AREA)
- Plastic & Reconstructive Surgery (AREA)
- Composite Materials (AREA)
- Dental Preparations (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Materials For Medical Uses (AREA)
- Dental Prosthetics (AREA)
- Porous Artificial Stone Or Porous Ceramic Products (AREA)
Abstract
1522182 Calcium phosphate ceramics STERLING DRUG Inc 22 July 1975 [2 Aug 1974 7 July 1975] 30706/75 Heading C1A A polycrystalline, sintered ceramic for use as a bone or tooth substitute is made by reacting calcium ion with phosphate ions in aqueous medium at pH of 10-12 to produce a gelatinous calcium phosphate precipitate having a Ca:P molar ratio of 1À44-1À72, separating the precipitate from the solution and heating the precipitate to above 1000C but below the temperature at which appreciable decomposition of hydroxylapatite occurs and maintaining said temperature for a sufficient time to effect sintering and maximum densification. When the Ca:P molar ratio is in the range 1À62-1À72 a translucent, isotropic, polycrystalline hydroxylapatite having an average crystalite size of 0À2-3 microns, a density of 3À1-3À14 g/cm<SP>3</SP>, substantially no pores and having cleavage along smooth curved planes is obtained. When the Ca:P ratio is in the range 1À44-1À60, preferably 1À46-1À57 a dense isotropic two-phase ceramic is obtained comprising 14-98% hydroxylapatite and 2-86% whitlockite, said ceramic having substantially no pores and having cleavage along smooth curved planes. The reactants are preferably Ca(NO 3 ) 2 and (NH 4 ) 2 HPO 4 . 0À4-0À6% of an organic binder, e.g. collagen, may be added to the precipitate to prevent cracking during drying. Porous forms of the ceramic may be made by including 5-25% by weight of organic binders such as powdered cellulose, starch, cotton or collagen to the precipitate. Fluoride ions may be introduced into the ceramic, e.g. by standing in 0À5-5% aqueous NaF for 12 hours-5 days.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US49424074A | 1974-08-02 | 1974-08-02 | |
| US59330375A | 1975-07-07 | 1975-07-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1522182A true GB1522182A (en) | 1978-08-23 |
Family
ID=27051362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB30706/75A Expired GB1522182A (en) | 1974-08-02 | 1975-07-22 | Ceramic material |
Country Status (20)
| Country | Link |
|---|---|
| JP (1) | JPS5941946B2 (en) |
| AR (1) | AR210581A1 (en) |
| AT (1) | AT370067B (en) |
| AU (1) | AU500991B2 (en) |
| BR (1) | BR7504887A (en) |
| CA (1) | CA1096582A (en) |
| CH (2) | CH618951A5 (en) |
| DE (1) | DE2534504A1 (en) |
| DK (1) | DK347975A (en) |
| FI (1) | FI64131C (en) |
| FR (1) | FR2283104A1 (en) |
| GB (1) | GB1522182A (en) |
| IE (1) | IE42442B1 (en) |
| IL (1) | IL47794A (en) |
| IT (1) | IT1044406B (en) |
| LU (1) | LU73132A1 (en) |
| NL (1) | NL182859C (en) |
| NO (1) | NO138802C (en) |
| NZ (1) | NZ178266A (en) |
| SE (3) | SE426386B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4548959A (en) * | 1979-09-25 | 1985-10-22 | Kureha Kagaku Kogyo Kabushiki Kaisha | Hydroxyapatite, ceramic material and process for preparing thereof |
| US4957674A (en) * | 1987-05-12 | 1990-09-18 | Asahi Kogaku Kogyo Kabushiki Kaisha | Method for producing calcium phosphate-based material |
| US5849569A (en) * | 1993-05-18 | 1998-12-15 | Millenium Biologix, Inc. | Assessment of bone cell activity |
| CN114890816A (en) * | 2022-04-20 | 2022-08-12 | 广东欧文莱陶瓷有限公司 | Ceramic tile with tree leaf surface and preparation method thereof |
| CN115651634A (en) * | 2022-10-24 | 2023-01-31 | 大连工业大学 | A high thermal stability perovskite quantum dot/hydroxyapatite composite luminescent material and its preparation method and application |
Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7704659A (en) * | 1976-05-12 | 1977-11-15 | Battelle Institut E V | BONE REPLACEMENT, BONE JOINT, OR PROSTHESIS ANCHORING MATERIAL. |
| DE2620907C3 (en) * | 1976-05-12 | 1984-09-20 | Battelle-Institut E.V., 6000 Frankfurt | Anchoring for highly stressed endoprostheses |
| US4075092A (en) * | 1976-08-10 | 1978-02-21 | Research Corporation | High surface area permeable material |
| CH608957A5 (en) * | 1977-02-25 | 1979-02-15 | Leuthard Paul E | |
| IL56141A (en) * | 1977-12-23 | 1981-10-30 | Sterling Drug Inc | Whitlockite ceramic and its manufacture |
| JPS54147940A (en) * | 1978-05-09 | 1979-11-19 | Sakurai Seiya | Method for supplying trace nutritious elements to food * controlling oxidation and genera bacteria by basic pentacalcium triiphosphate |
| JPS5550349A (en) * | 1978-10-09 | 1980-04-12 | Kureha Chemical Ind Co Ltd | Dental compound material |
| FR2460657A1 (en) * | 1979-07-12 | 1981-01-30 | Anvar | BIODEGRADABLE IMPLANT FOR USE AS A BONE PROSTHESIS PIECE |
| FR2478650A1 (en) * | 1980-03-24 | 1981-09-25 | Commissariat Energie Atomique | CEMENT FOR USE IN FIXING BONE PROSTHESES |
| FR2485504A1 (en) * | 1980-06-30 | 1981-12-31 | Centre Nat Rech Scient | Sintered fluoro:apatite for bone prostheses - made with porous structure free from foreign phases |
| FR2527779B1 (en) * | 1982-05-25 | 1985-05-31 | Commissariat Energie Atomique | BONE TISSUE SIMULATOR MATERIAL, PREPARATION METHOD THEREOF AND USES THEREOF |
| CA1247960A (en) | 1983-03-24 | 1989-01-03 | Hideki Aoki | Transcutaneously implantable element |
| DE3424777C2 (en) * | 1983-07-08 | 1995-08-03 | Kyushu Refractories | Artificial dental materials |
| NL8402158A (en) * | 1983-07-09 | 1985-02-01 | Sumitomo Cement Co | POROUS CERAMIC MATERIAL AND METHOD FOR THE PREPARATION THEREOF. |
| FR2577142B1 (en) * | 1985-02-13 | 1987-03-06 | Commissariat Energie Atomique | BONE IMPLANT IN CARBON FIBER REINFORCED EPOXIDE RESIN AND PROCESS FOR PRODUCING THE SAME |
| JPH0624964B2 (en) * | 1985-09-23 | 1994-04-06 | 東燃株式会社 | Calcium phosphate-based hydroxyapatite and method for producing the same |
| DE3609432A1 (en) * | 1986-03-20 | 1987-09-24 | Kerstin Koerber | Sinterable dental impression compounds and their use |
| JPH0720486B2 (en) * | 1986-10-30 | 1995-03-08 | 京セラ株式会社 | Calcium phosphate-based bioprosthetic material and method for producing the same |
| US4861733A (en) * | 1987-02-13 | 1989-08-29 | Interpore International | Calcium phosphate bone substitute materials |
| WO1989012436A1 (en) * | 1988-06-21 | 1989-12-28 | Vita Zahnfabrik H. Rauter Gmbh & Co. Kg | Disperse ceramic mass |
| EP0410010B1 (en) * | 1989-07-22 | 1993-10-27 | Johannes Friedrich Prof. Dr. Osborn | Osteotropic implant material |
| DE3935060C2 (en) * | 1989-10-20 | 1996-05-30 | Herbst Bremer Goldschlaegerei | Process for the production of a ceramic material for the dental field and its use |
| DE4302072A1 (en) * | 1993-01-26 | 1994-07-28 | Herbst Bremer Goldschlaegerei | Ceramic material for dental fillings and / or dental prostheses and method for producing the same |
| DE10027946A1 (en) * | 2000-06-08 | 2001-12-13 | Wolfgang Wiedemann | Dental ceramic used in dentistry as filling material and tooth replacement is anisotropic and contains a large amount of hydroxylapatite |
| US20170087060A1 (en) * | 2011-11-18 | 2017-03-30 | Sofsera Corporation | Tooth surface repairing material |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR618953A (en) | 1927-03-24 | |||
| US2508816A (en) * | 1947-01-25 | 1950-05-23 | Ment Jack De | Prosthetic tooth composition |
| US3609867A (en) | 1969-03-10 | 1971-10-05 | Research Corp | Plastic bone composition |
| US3787900A (en) * | 1971-06-09 | 1974-01-29 | Univ Iowa State Res Found | Artificial bone or tooth prosthesis material |
| ZA741576B (en) * | 1973-04-02 | 1975-02-26 | Lee Pharmaceuticals | Dental adhesive composition |
| JPS5645814A (en) | 1979-09-25 | 1981-04-25 | Kureha Chem Ind Co Ltd | Hydroxyapatite, its ceramic material and its manufacture |
| JPS58134992A (en) | 1982-01-21 | 1983-08-11 | Kitasato Inst:The | Antibiotic substance am-2604-a and its preparation |
-
1975
- 1975-07-22 GB GB30706/75A patent/GB1522182A/en not_active Expired
- 1975-07-24 IL IL47794A patent/IL47794A/en unknown
- 1975-07-31 FI FI752194A patent/FI64131C/en not_active IP Right Cessation
- 1975-07-31 IE IE1715/75A patent/IE42442B1/en unknown
- 1975-07-31 NZ NZ178266A patent/NZ178266A/en unknown
- 1975-07-31 DK DK347975A patent/DK347975A/en not_active Application Discontinuation
- 1975-07-31 BR BR7504887A patent/BR7504887A/en unknown
- 1975-07-31 CH CH1005875A patent/CH618951A5/en not_active IP Right Cessation
- 1975-07-31 AU AU83582/75A patent/AU500991B2/en not_active Ceased
- 1975-08-01 AT AT0599475A patent/AT370067B/en not_active IP Right Cessation
- 1975-08-01 NL NLAANVRAGE7509243,A patent/NL182859C/en not_active IP Right Cessation
- 1975-08-01 NO NO752712A patent/NO138802C/en unknown
- 1975-08-01 FR FR7524132A patent/FR2283104A1/en active Granted
- 1975-08-01 CA CA232,712A patent/CA1096582A/en not_active Expired
- 1975-08-01 LU LU73132A patent/LU73132A1/xx unknown
- 1975-08-01 JP JP50094103A patent/JPS5941946B2/en not_active Expired
- 1975-08-01 DE DE19752534504 patent/DE2534504A1/en active Granted
- 1975-08-01 SE SE7508751A patent/SE426386B/en not_active IP Right Cessation
- 1975-08-01 IT IT50777/75A patent/IT1044406B/en active
- 1975-08-10 AR AR259877A patent/AR210581A1/en active
-
1978
- 1978-04-26 SE SE7804813A patent/SE7804813L/sv unknown
- 1978-04-26 SE SE7804812A patent/SE425563B/en not_active IP Right Cessation
- 1978-08-28 CH CH905878A patent/CH618952A5/en not_active IP Right Cessation
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4548959A (en) * | 1979-09-25 | 1985-10-22 | Kureha Kagaku Kogyo Kabushiki Kaisha | Hydroxyapatite, ceramic material and process for preparing thereof |
| US4957674A (en) * | 1987-05-12 | 1990-09-18 | Asahi Kogaku Kogyo Kabushiki Kaisha | Method for producing calcium phosphate-based material |
| US5089195A (en) * | 1987-05-12 | 1992-02-18 | Asahi Kogaku Kogyo K.K. | Method for producing calcium phosphate-based material |
| US5849569A (en) * | 1993-05-18 | 1998-12-15 | Millenium Biologix, Inc. | Assessment of bone cell activity |
| CN114890816A (en) * | 2022-04-20 | 2022-08-12 | 广东欧文莱陶瓷有限公司 | Ceramic tile with tree leaf surface and preparation method thereof |
| CN115651634A (en) * | 2022-10-24 | 2023-01-31 | 大连工业大学 | A high thermal stability perovskite quantum dot/hydroxyapatite composite luminescent material and its preparation method and application |
Also Published As
| Publication number | Publication date |
|---|---|
| IL47794A0 (en) | 1975-11-25 |
| JPS5941946B2 (en) | 1984-10-11 |
| IE42442B1 (en) | 1980-08-13 |
| DK347975A (en) | 1976-02-03 |
| IT1044406B (en) | 1980-03-20 |
| SE426386B (en) | 1983-01-17 |
| FR2283104A1 (en) | 1976-03-26 |
| NZ178266A (en) | 1978-04-03 |
| FI752194A7 (en) | 1976-02-03 |
| NO138802C (en) | 1978-11-15 |
| NL182859B (en) | 1988-01-04 |
| AU8358275A (en) | 1977-02-03 |
| BR7504887A (en) | 1976-08-31 |
| SE7508751L (en) | 1976-02-03 |
| ATA599475A (en) | 1982-07-15 |
| CH618952A5 (en) | 1980-08-29 |
| AR210581A1 (en) | 1977-08-31 |
| NL182859C (en) | 1988-06-01 |
| CA1096582A (en) | 1981-03-03 |
| NL7509243A (en) | 1976-02-04 |
| DE2534504C2 (en) | 1989-02-16 |
| JPS5140400A (en) | 1976-04-05 |
| SE7804813L (en) | 1978-04-26 |
| FR2283104B1 (en) | 1983-04-29 |
| AT370067B (en) | 1983-02-25 |
| DE2534504A1 (en) | 1976-02-19 |
| LU73132A1 (en) | 1976-07-01 |
| IE42442L (en) | 1976-02-02 |
| NO752712L (en) | 1976-02-03 |
| SE425563B (en) | 1982-10-11 |
| IL47794A (en) | 1978-07-31 |
| AU500991B2 (en) | 1979-06-07 |
| CH618951A5 (en) | 1980-08-29 |
| FI64131B (en) | 1983-06-30 |
| FI64131C (en) | 1983-10-10 |
| NO138802B (en) | 1978-08-07 |
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| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| 704A | Declaration that licence is not available as of right for an excepted use (par. 4a/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |