BR0300042A - Composições de vidro para a produção de peças de vidro isentas de chumbo - Google Patents

Composições de vidro para a produção de peças de vidro isentas de chumbo

Info

Publication number
BR0300042A
BR0300042A BR0300042-7A BR0300042A BR0300042A BR 0300042 A BR0300042 A BR 0300042A BR 0300042 A BR0300042 A BR 0300042A BR 0300042 A BR0300042 A BR 0300042A
Authority
BR
Brazil
Prior art keywords
lead
production
glass
free
parts
Prior art date
Application number
BR0300042-7A
Other languages
English (en)
Inventor
Antonio Telhado Pereira
Andreia Duarte Menezes
Frederico Werner Strauss
Debora Da Silva
Original Assignee
Cbmm Sa
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 Cbmm Sa filed Critical Cbmm Sa
Priority to BR0300042-7A priority Critical patent/BR0300042A/pt
Priority to AU2003287792A priority patent/AU2003287792A1/en
Priority to US10/540,727 priority patent/US20060240970A1/en
Priority to PCT/BR2003/000199 priority patent/WO2004063108A1/en
Publication of BR0300042A publication Critical patent/BR0300042A/pt

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
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/097—Glass compositions containing silica with 40% to 90% silica, by weight containing phosphorus, niobium or tantalum
    • 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
    • C03C4/0028—Compositions for glass with special properties for crystal glass, e.g. lead-free crystal glass

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)
  • Ceramic Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Glass Compositions (AREA)

Abstract

"COMPOSIçõES DE VIDRO PARA A PRODUçãO DE PEçAS DE VIDRO ISENTAS DE CHUMBO". A invenção se refere a novas composições de vidro para produção de cristais livres de chumbo, contendo massa específica superior a 2,4 g/cm^ 3^, indice de refração mínimo de 1,51 e alta resistência ao ataque químico, cujas composições são caracterizadas pelo fato de compreenderem, em massa: de cerca de 50% a cerca de 75% de SiO~ 2~; de cerca de 0,1% a cerca de 1% de AS~ 2~O~ 3~; de cerca de 5% a cerca de 15% de K~ 2~0; de cerca de 2% a cerca de 5% de Na~ 2~0; de cerca de 3% a cerca de 12% de CaO; de cerca de 0,1% a cerca de 5% de BaO; de cerca de 0,1% a cerca de 10% de Nb~ 2~0~ 5~; e, até 5% de outros elementos.
BR0300042-7A 2003-01-14 2003-01-14 Composições de vidro para a produção de peças de vidro isentas de chumbo BR0300042A (pt)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BR0300042-7A BR0300042A (pt) 2003-01-14 2003-01-14 Composições de vidro para a produção de peças de vidro isentas de chumbo
AU2003287792A AU2003287792A1 (en) 2003-01-14 2003-12-19 Glass compositions for the production of lead-free crystals
US10/540,727 US20060240970A1 (en) 2003-01-14 2003-12-19 Glass compositions for the production of lead-free crystals
PCT/BR2003/000199 WO2004063108A1 (en) 2003-01-14 2003-12-19 Glass compositions for the production of lead-free crystals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BR0300042-7A BR0300042A (pt) 2003-01-14 2003-01-14 Composições de vidro para a produção de peças de vidro isentas de chumbo

Publications (1)

Publication Number Publication Date
BR0300042A true BR0300042A (pt) 2004-10-13

Family

ID=37177774

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0300042-7A BR0300042A (pt) 2003-01-14 2003-01-14 Composições de vidro para a produção de peças de vidro isentas de chumbo

Country Status (4)

Country Link
US (1) US20060240970A1 (pt)
AU (1) AU2003287792A1 (pt)
BR (1) BR0300042A (pt)
WO (1) WO2004063108A1 (pt)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITFI20070291A1 (it) 2007-12-28 2009-06-29 Rcr Cristalleria Italiana S P "vetro sonoro superiore senza piombo ad alta trasparenza ed alta brillantezza adatto per fusioni elettriche a coperta fredda con elettrodi in ossido di stagno"

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2115403B (en) * 1982-02-20 1985-11-27 Zeiss Stiftung Optical and opthalmic glass
CZ278892B6 (en) * 1991-05-08 1994-08-17 Vysoka Skola Chem Tech Lead-free crystal glass
JP2906104B2 (ja) * 1992-10-20 1999-06-14 東洋ガラス 株式会社 鉛を含まないクリスタルなガラス組成物
DE4309701C1 (de) * 1993-03-25 1994-06-30 Schott Glaswerke Bleifreies Kristallglas mit hoher Lichttransmission
CA2340412A1 (en) * 1998-08-14 2000-02-24 Corning Incorporated Lead-free glasses
DE19920865C1 (de) * 1999-05-06 2000-06-29 Schott Glas Bleifreie optische Gläser

Also Published As

Publication number Publication date
US20060240970A1 (en) 2006-10-26
WO2004063108A1 (en) 2004-07-29
AU2003287792A1 (en) 2004-08-10

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Legal Events

Date Code Title Description
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]

Free format text: INDEFERIMENTO DO PRESENTE PEDIDO DE PATENTE COMO INVENCAO, DE ACORDO COM O ART. 8O E 13 DA LPI

B09B Patent application refused [chapter 9.2 patent gazette]

Free format text: MANTIDO O INDEFERIMENTO UMA VEZ QUE NAO FOI APRESENTADO RECURSO DENTRO DO PRAZO LEGAL.