Phosphosilicate glass ceramic
Phosphosilicate glass ceramic comprises: many fluoroapatite crystals; many leucite crystals; and components comprising: silicon dioxide (57.6-62 wt.%); aluminum oxide (12-16 wt.%); boron oxide (0.0-1.5 wt.%); potassium oxide (9-13 wt.%); sodium oxide (5-8 wt.%); lithium oxide (0.0-1.5 wt.%); barium...
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| creator | BOLLE, URS SCHWEIGER, MARCEL HOELAND, WOLFRAM RHEINBERGER, VOLKER APEL, ELKE |
| description | Phosphosilicate glass ceramic comprises: many fluoroapatite crystals; many leucite crystals; and components comprising: silicon dioxide (57.6-62 wt.%); aluminum oxide (12-16 wt.%); boron oxide (0.0-1.5 wt.%); potassium oxide (9-13 wt.%); sodium oxide (5-8 wt.%); lithium oxide (0.0-1.5 wt.%); barium oxide (0-0.5 wt.%); calcium oxide (0.6-2.4 wt.%); zinc oxide (0-3 wt.%); titanium dioxide (0-1.5 wt.%); zirconium oxide (0-3.5 wt.%); cerium oxide (0-1 wt.%); phosphorus pentoxide (0.4-2.5 wt.%); and fluorine (0.3-1.5 wt.%). Independent claims are included for: (1) a preparation of the phosphosilicate glass ceramic comprising: melting a glass comprising the components at a temperature of 1500-1550[deg] C, pouring the glass melt obtained into water to form a glass granulate, optionally comminuting the glass granulate to a glass powder with an average particle size of less than 90 mu m, preferably 10-40 mu m, and subjecting the glass granulate or the glass powder to a heat treatment in a temperature of 500-1000[deg] C, for a period of 30 minutes to 6 hours to form the glass ceramic; (2) a dental material shaped from the phosphosilicate glass ceramic; and (3) a dental product shaped from the phosphosilicate glass ceramic. |
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Independent claims are included for: (1) a preparation of the phosphosilicate glass ceramic comprising: melting a glass comprising the components at a temperature of 1500-1550[deg] C, pouring the glass melt obtained into water to form a glass granulate, optionally comminuting the glass granulate to a glass powder with an average particle size of less than 90 mu m, preferably 10-40 mu m, and subjecting the glass granulate or the glass powder to a heat treatment in a temperature of 500-1000[deg] C, for a period of 30 minutes to 6 hours to form the glass ceramic; (2) a dental material shaped from the phosphosilicate glass ceramic; and (3) a dental product shaped from the phosphosilicate glass ceramic.</description><language>eng ; fre ; ger</language><subject>CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS ; CHEMISTRY ; GLASS ; HUMAN NECESSITIES ; HYGIENE ; JOINING GLASS TO GLASS OR OTHER MATERIALS ; MEDICAL OR VETERINARY SCIENCE ; METALLURGY ; MINERAL OR SLAG WOOL ; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES ; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS ; SURFACE TREATMENT OF GLASS</subject><creationdate>2013</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20130515&DB=EPODOC&CC=EP&NR=2287122B1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20130515&DB=EPODOC&CC=EP&NR=2287122B1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>BOLLE, URS</creatorcontrib><creatorcontrib>SCHWEIGER, MARCEL</creatorcontrib><creatorcontrib>HOELAND, WOLFRAM</creatorcontrib><creatorcontrib>RHEINBERGER, VOLKER</creatorcontrib><creatorcontrib>APEL, ELKE</creatorcontrib><title>Phosphosilicate glass ceramic</title><description>Phosphosilicate glass ceramic comprises: many fluoroapatite crystals; many leucite crystals; and components comprising: silicon dioxide (57.6-62 wt.%); aluminum oxide (12-16 wt.%); boron oxide (0.0-1.5 wt.%); potassium oxide (9-13 wt.%); sodium oxide (5-8 wt.%); lithium oxide (0.0-1.5 wt.%); barium oxide (0-0.5 wt.%); calcium oxide (0.6-2.4 wt.%); zinc oxide (0-3 wt.%); titanium dioxide (0-1.5 wt.%); zirconium oxide (0-3.5 wt.%); cerium oxide (0-1 wt.%); phosphorus pentoxide (0.4-2.5 wt.%); and fluorine (0.3-1.5 wt.%). 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Independent claims are included for: (1) a preparation of the phosphosilicate glass ceramic comprising: melting a glass comprising the components at a temperature of 1500-1550[deg] C, pouring the glass melt obtained into water to form a glass granulate, optionally comminuting the glass granulate to a glass powder with an average particle size of less than 90 mu m, preferably 10-40 mu m, and subjecting the glass granulate or the glass powder to a heat treatment in a temperature of 500-1000[deg] C, for a period of 30 minutes to 6 hours to form the glass ceramic; (2) a dental material shaped from the phosphosilicate glass ceramic; and (3) a dental product shaped from the phosphosilicate glass ceramic.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng ; fre ; ger |
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| subjects | CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY GLASS HUMAN NECESSITIES HYGIENE JOINING GLASS TO GLASS OR OTHER MATERIALS MEDICAL OR VETERINARY SCIENCE METALLURGY MINERAL OR SLAG WOOL PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS |
| title | Phosphosilicate glass ceramic |
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