GB1418093A - Glasses having a low coefficient of thermal expansion - Google Patents

Glasses having a low coefficient of thermal expansion

Info

Publication number
GB1418093A
GB1418093A GB2086673A GB2086673A GB1418093A GB 1418093 A GB1418093 A GB 1418093A GB 2086673 A GB2086673 A GB 2086673A GB 2086673 A GB2086673 A GB 2086673A GB 1418093 A GB1418093 A GB 1418093A
Authority
GB
United Kingdom
Prior art keywords
thermal expansion
weight
glasses
low coefficient
bao
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
GB2086673A
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.)
LOING VERRERIES
Societe des Verreries Industrielles Reunies du Loing
Original Assignee
LOING VERRERIES
Societe des Verreries Industrielles Reunies du Loing
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 LOING VERRERIES, Societe des Verreries Industrielles Reunies du Loing filed Critical LOING VERRERIES
Publication of GB1418093A publication Critical patent/GB1418093A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C03C4/00—Compositions for glass with special properties
    • C03C4/005—Compositions for glass with special properties for opaline glass
    • 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
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
    • 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
    • C03C4/00—Compositions for glass with special properties
    • 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
    • C03C2204/00—Glasses, glazes or enamels with special properties
    • C03C2204/04—Opaque glass, glaze or enamel

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Glass Compositions (AREA)

Abstract

1418093 Borosilicate opal glass SOC DES VERRERIES INDUSTRIELLES REUNIES DU LOING 2 May 1973 [3 May 1972] 20866/73 Addition to 1000062 Heading C1M A borosilicate opal glass which is opaque or strongly opalescent has a coefficient of thermal expansion from 25 to 40 x 10<SP>-7</SP> per ‹C. between 0‹ and 300‹ C. and consists essentially of the following constituents (per cent by weight): 70-76 SiO 2 , 11À5-13À5 B 2 O 3 , 7À5-10 ZnO, 2À2-3À3 BaO, and 1À7-2À05 Na 2 O. Other components may be present in total up to about 3% by weight, e.g. 0À8% TiO, 0À08-0À09% ZrO 2 , 0À02-0À03% Fe 2 O 3 , 0À05-0À5% Al 2 O 3 . Comparative-examples disclose specific compositions containing, in per cent by weight: 71À8-73À8 SiO 2 , 12-14À3 B 2 O 3 , 7À15-10À6 ZnO, 0-3À7 BaO, 0-0À95 Li 2 O, 1À9-3À2% Na 2 O, 0-0À8 TiO 2 , 0-0À05 Al 2 O 3 , 0-1À35 ZrO 2 and 0-0À04 Fe 2 O 3 .
GB2086673A 1972-05-03 1973-05-02 Glasses having a low coefficient of thermal expansion Expired GB1418093A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7215605A FR2182653B2 (en) 1972-05-03 1972-05-03

Publications (1)

Publication Number Publication Date
GB1418093A true GB1418093A (en) 1975-12-17

Family

ID=9097876

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2086673A Expired GB1418093A (en) 1972-05-03 1973-05-02 Glasses having a low coefficient of thermal expansion

Country Status (5)

Country Link
BE (1) BE798559R (en)
DE (1) DE2321805A1 (en)
FR (1) FR2182653B2 (en)
GB (1) GB1418093A (en)
IT (1) IT1205869B (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL274292A (en) * 1961-02-03

Also Published As

Publication number Publication date
DE2321805A1 (en) 1973-11-15
FR2182653A2 (en) 1973-12-14
FR2182653B2 (en) 1978-10-20
IT1205869B (en) 1989-03-31
BE798559R (en) 1973-10-22

Similar Documents

Publication Publication Date Title
GB1010513A (en) Improvements in or relating to crystalline glass and to methods of making the same
GB1345294A (en) Glass-ceramic articles
GB1416206A (en) Alkali-resistant glass fibres
GB1398907A (en) Crystallizable glasses and glass ceramics
GB1402555A (en) Fibre reinforced cement composites
GB1287970A (en)
GB1273011A (en) Improvements in or relating to glass
GB1399556A (en) Alkali-resistant glass compositions
GB1506916A (en) Optical glass
GB1301573A (en)
GB764575A (en) Gamma ray absorptive glass
GB746147A (en) Optical glass
GB1515042A (en) Optical lead silicate glass
GB996307A (en) Barium borosilicate glass
GB940706A (en) A crystalline or vitreous-crystalline devitrified glass having a negative or very low and positive thermal expansion coefficient
GB1418093A (en) Glasses having a low coefficient of thermal expansion
GB1398125A (en) Glass useful for forming a reed switch sealing tube
ES296217A1 (en) Glass compositions
GB791374A (en) Alkali-resistant silicate glass
GB1191162A (en) Glass Composition
GB1527848A (en) Copper-cadmium-silver photochromic glass
GB861440A (en) Improvements in or relating to glass compositions
GB1319653A (en) Optical glass
GB1246384A (en) Improvements in or relating to glass
GB836348A (en) Glass composition

Legal Events

Date Code Title Description
694A Case decided by the comptroller (rule 94(3)/1968)
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees