BR9911363A - Composições de grafita apagável de lápis de cor e método de fazer e utilizar tais composições - Google Patents

Composições de grafita apagável de lápis de cor e método de fazer e utilizar tais composições

Info

Publication number
BR9911363A
BR9911363A BR9911363-5A BR9911363A BR9911363A BR 9911363 A BR9911363 A BR 9911363A BR 9911363 A BR9911363 A BR 9911363A BR 9911363 A BR9911363 A BR 9911363A
Authority
BR
Brazil
Prior art keywords
compositions
composition
erasable
disclosed
pencil lead
Prior art date
Application number
BR9911363-5A
Other languages
English (en)
Other versions
BR9911363B1 (pt
Inventor
Jacob Leidner
David Hacker
Original Assignee
Binney & Smith Inc
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
Priority claimed from US09/105,704 external-priority patent/US6011084A/en
Application filed by Binney & Smith Inc filed Critical Binney & Smith Inc
Publication of BR9911363A publication Critical patent/BR9911363A/pt
Publication of BR9911363B1 publication Critical patent/BR9911363B1/pt

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D13/00Pencil-leads; Crayon compositions; Chalk compositions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Luminescent Compositions (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Dental Preparations (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)

Abstract

<B>COMPOSIçõES DE GRAFICA APAGáVEL DE LáPIS DE COR E MéTODO DE FAZER E UTILIZAR TAIS COMPOSIçõES<D> A presente invenção proporciona uma composição de grafita apagável de lápis de cor compreendendo um colorante, uma ou mais resinas aglutinantes, um material fibrilado ou que pode ser fibrilado e uma carga. A grafita de lápis de cor da presente invenção produz marcas no papel, as quais são facilmente apagadas por uma borracha de lápis comum. A marca feita utilizando-se a composição tem uma natureza coesiva que auxilia na remoção a partir do papel em folha ou sessões semelhantes à película através do uso de uma borracha comum sem manchar ou deixar um resíduo. Em uma modalidade preferida, a composição é livre ou substancialmente livre de ceras de baixo ponto de fusão ou materiais semelhantes à cera. Exemplos de resinas aglutinantes adequadas incluem polietileno de alta densidade, polietileno de baixa densidade, polipropileno e ceras de elevado ponto de fusão. Exemplos de materiais fibrilados ou que podem ser fibrilados incluem politetrafluoroetileno fibrilado ou que pode ser fibrilado e copolímero de etileno-acetato de vinila. A composição de grafita de lápis de cor pode incluir ainda um lubrificante. Exemplos de lubrificantes adequados incluem lubrificante particulado, tal como PTFE micronizado, e lubrificantes não particulados, tais como materiais alcoxilados, por exemplo, glicóis de polietileno. A presente invenção proporciona ainda um processo para usar a composição de grafita de lápis de cor. A presente invenção proporciona ainda um processo para preparar a grafita de lápis de cor da presente invenção.
BRPI9911363-5A 1998-06-26 1999-06-22 composição de grafita apagável de lápis de cor, método para sua utilização e apagamento de uma marca feita pela composição e processo para preparação de grafita apagável. BR9911363B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/105,704 US6011084A (en) 1998-06-26 1998-06-26 Erasable colored pencil lead
US09/197,283 US6262143B1 (en) 1998-06-26 1998-11-20 Erasable colored pencil lead
PCT/US1999/014050 WO2000000557A1 (en) 1998-06-26 1999-06-22 Erasable colored pencil lead

Publications (2)

Publication Number Publication Date
BR9911363A true BR9911363A (pt) 2001-03-13
BR9911363B1 BR9911363B1 (pt) 2011-04-19

Family

ID=26802859

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI9911363-5A BR9911363B1 (pt) 1998-06-26 1999-06-22 composição de grafita apagável de lápis de cor, método para sua utilização e apagamento de uma marca feita pela composição e processo para preparação de grafita apagável.

Country Status (14)

Country Link
US (2) US6271286B1 (pt)
EP (1) EP1093495B1 (pt)
JP (2) JP2002519469A (pt)
CN (1) CN1196754C (pt)
AT (1) ATE262013T1 (pt)
AU (1) AU748198B2 (pt)
BR (1) BR9911363B1 (pt)
CA (1) CA2333071C (pt)
DE (1) DE69915625T2 (pt)
ES (1) ES2214034T3 (pt)
HK (1) HK1038238A1 (pt)
MX (1) MXPA00011333A (pt)
PT (1) PT1093495E (pt)
WO (1) WO2000000557A1 (pt)

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CN108659625A (zh) * 2018-06-05 2018-10-16 安徽得亿文教用品有限公司 一种彩色塑料铅笔笔芯配方及制备方法
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AUPN766196A0 (en) 1996-01-22 1996-02-15 A W Faber-Castell (Aust) Pty Limited Connector device for interlocking writing instruments
JP3106976B2 (ja) 1996-10-01 2000-11-06 双葉金属工業株式会社 ワンタッチ式アジャスター
JP3153778B2 (ja) 1997-03-13 2001-04-09 三菱電機株式会社 ガス絶縁変圧器
JP3153779B2 (ja) 1997-04-18 2001-04-09 東京瓦斯株式会社 フルイディック式ガスメータ
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JP2002519469A (ja) * 1998-06-26 2002-07-02 ビニー アンド スミス インコーポレイティド 消去可能な色鉛筆芯
US6011084A (en) * 1998-06-26 2000-01-04 Binney & Smith Inc. Erasable colored pencil lead

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PT1093495E (pt) 2004-08-31
WO2000000557A1 (en) 2000-01-06
US6271286B1 (en) 2001-08-07
HK1038238A1 (en) 2002-03-08
US6815471B2 (en) 2004-11-09
DE69915625D1 (de) 2004-04-22
JP2002519469A (ja) 2002-07-02
JP2007284689A (ja) 2007-11-01
EP1093495A1 (en) 2001-04-25
CN1196754C (zh) 2005-04-13
DE69915625T2 (de) 2005-03-24
EP1093495B1 (en) 2004-03-17
AU4581899A (en) 2000-01-17
CA2333071A1 (en) 2000-01-06
ATE262013T1 (de) 2004-04-15
MXPA00011333A (es) 2003-05-19
BR9911363B1 (pt) 2011-04-19
AU748198B2 (en) 2002-05-30
CA2333071C (en) 2008-08-12
CN1302316A (zh) 2001-07-04
US20020025995A1 (en) 2002-02-28
ES2214034T3 (es) 2004-09-01

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