GB1255942A - Improvements in or relating to the production of porcelain articles - Google Patents

Improvements in or relating to the production of porcelain articles

Info

Publication number
GB1255942A
GB1255942A GB8320/68A GB832068A GB1255942A GB 1255942 A GB1255942 A GB 1255942A GB 8320/68 A GB8320/68 A GB 8320/68A GB 832068 A GB832068 A GB 832068A GB 1255942 A GB1255942 A GB 1255942A
Authority
GB
United Kingdom
Prior art keywords
porcelain
immersion
per cent
feldspar
kbr
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
Application number
GB8320/68A
Inventor
Norman Roy Pendry
William White Marshall
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB8320/68A priority Critical patent/GB1255942A/en
Publication of GB1255942A publication Critical patent/GB1255942A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K6/00—Preparations for dentistry
    • A61K6/15—Compositions characterised by their physical properties
    • A61K6/17—Particle size
    • 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
    • A61K6/71—Fillers
    • 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
    • A61K6/802—Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics
    • A61K6/827—Leucite
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C21/00—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface
    • C03C21/001—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions
    • C03C21/002—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions to perform ion-exchange between alkali ions
    • 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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
    • C04B41/5007—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with salts or salty compositions, e.g. for salt glazing
    • C04B41/5011—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with salts or salty compositions, e.g. for salt glazing containing halogen in the anion
    • 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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
    • C04B41/5022—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with vitreous materials
    • 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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/81—Coating or impregnation
    • C04B41/85—Coating or impregnation with inorganic materials
    • 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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/81—Coating or impregnation
    • C04B41/85—Coating or impregnation with inorganic materials
    • C04B41/86—Glazes; Cold glazes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Epidemiology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Plastic & Reconstructive Surgery (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

1,255,942. Porcelain. NATIONAL RESEARCH DEVELOPMENT CORP. 19 May, 1969 [20 Feb., 1968], No. 8320/68. Heading CIJ. Porcelainarticles are toughened by immersion for 5 to 200 minutes in a bath of molten halide of K, Pb or Cs. In examples, molten baths of KBr, RbCl, GsBr and a mixture of KBr and K 2 SO 4 are used. As a comparison porcelain shapes are treated by immersion in melts of (a) NaNO 3 containing 20 wt. per cent NaBF 4 and 1% 4g, (b) KNO 3 containing 10 wt. per cent KBF 4 and 1% Ag, (c) NaI. The articles can be preheated to the temperature of the bath, e.g. 700-900‹ C. before immersion. Porcelain shapes are made by settling an aqueous slurry of porcelain powder in a mould under vibration, air drying, firing at 875-880‹C. and annealing at 400‹ C. An industrial porcelain is formed from 27% feldspar, 27À5% quartz and 45% kaolin and a dental porcelain is formed from 70-90% feldspar,1-18% quartz and 1-10% kaolin. A porcelain article analyses, before treatment, 69À36 wt. per cent SiO 2 , 8À11% Al 2 O 3 , 7À35% B 2 O 3 , 8À53% K 2 O and 4À81% Na 2 O.
GB8320/68A 1968-02-20 1968-02-20 Improvements in or relating to the production of porcelain articles Expired GB1255942A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8320/68A GB1255942A (en) 1968-02-20 1968-02-20 Improvements in or relating to the production of porcelain articles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8320/68A GB1255942A (en) 1968-02-20 1968-02-20 Improvements in or relating to the production of porcelain articles

Publications (1)

Publication Number Publication Date
GB1255942A true GB1255942A (en) 1971-12-01

Family

ID=9850278

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8320/68A Expired GB1255942A (en) 1968-02-20 1968-02-20 Improvements in or relating to the production of porcelain articles

Country Status (1)

Country Link
GB (1) GB1255942A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2558726A1 (en) * 1984-01-26 1985-08-02 G C Dental Ind Corp PROCESS FOR MAKING THE DENTAL RESTORING PRODUCT MORE RESISTANT
GB2153812A (en) * 1984-01-26 1985-08-29 G C Dental Ind Corp Method for strengthening porcelain teeth
EP3095435A1 (en) * 2015-05-22 2016-11-23 DeguDent GmbH Method to produce a dental structure and dental structure
CN113716871A (en) * 2021-09-08 2021-11-30 深圳爱尔创口腔技术有限公司 Fluorescent lithium silicate glass ceramic enhanced by ion exchange and preparation method thereof

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2558726A1 (en) * 1984-01-26 1985-08-02 G C Dental Ind Corp PROCESS FOR MAKING THE DENTAL RESTORING PRODUCT MORE RESISTANT
GB2153342A (en) * 1984-01-26 1985-08-21 G C Dental Ind Corp Method for strengthening dental restorative material
GB2153812A (en) * 1984-01-26 1985-08-29 G C Dental Ind Corp Method for strengthening porcelain teeth
EP3095435A1 (en) * 2015-05-22 2016-11-23 DeguDent GmbH Method to produce a dental structure and dental structure
WO2016188892A1 (en) * 2015-05-22 2016-12-01 Dentsply Sirona Inc. Method to produce a dental structure and dental structure
US11427504B2 (en) 2015-05-22 2022-08-30 Dentsply Sirona Inc. Method to produce a dental structure and dental structure
CN113716871A (en) * 2021-09-08 2021-11-30 深圳爱尔创口腔技术有限公司 Fluorescent lithium silicate glass ceramic enhanced by ion exchange and preparation method thereof

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