ES2077567T3 - Goma de borrar. - Google Patents

Goma de borrar.

Info

Publication number
ES2077567T3
ES2077567T3 ES89103727T ES89103727T ES2077567T3 ES 2077567 T3 ES2077567 T3 ES 2077567T3 ES 89103727 T ES89103727 T ES 89103727T ES 89103727 T ES89103727 T ES 89103727T ES 2077567 T3 ES2077567 T3 ES 2077567T3
Authority
ES
Spain
Prior art keywords
styrene
eraser
block copolymer
butylene
copolymer
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 - Lifetime
Application number
ES89103727T
Other languages
English (en)
Inventor
Karl-Heinz Weissmann
Fritz Schmidt
Dieter Kruger
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.)
Pelikan GmbH
Original Assignee
Pelikan GmbH
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 Pelikan GmbH filed Critical Pelikan GmbH
Application granted granted Critical
Publication of ES2077567T3 publication Critical patent/ES2077567T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L19/00—Erasers, rubbers, or erasing devices; Holders therefor
    • B43L19/0025—Eraser or rubber material, e.g. comprising hard particles
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • C08L53/02—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes
    • C08L53/025—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes modified

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Paints Or Removers (AREA)

Abstract

SE DESCRIBE UNA GOMA DE BORRAR CON UN CONTENIDO EN COPOLIMEROS DE ESTIROL, MATERIAL DE RELLENO ASI COMO DADO EL CASO OTROS ADITIVOS. SE CARACTERIZA PORQUE EL COPOLIMERO DE BLOQUE ESTIROL ES UN ELASTOMERO TERMOPLASTICO EN FORMA A) DE UN BUTILENO ESTIROL Y/O COPOLIMERO DE BLOQUE PROPILENO - ESTIROL Y/O B) UN COPOLIMERO DE BLOQUE ESTIROL - BUTILENO - PROPILENO. EL COPOLIMERO A) CONTIENE PRINCIPALMENTE EN SU BLOQUE MEDIO ETILEPO UNIPOLIMERIZADO. LA GOMA DE BORRAR MUESTRA ESPECIALMENTE UNA BUENA ESTABILIDAD AL TIEMPO, A LA LUZ Y A LA TEMPERATURA.
ES89103727T 1988-03-24 1989-03-03 Goma de borrar. Expired - Lifetime ES2077567T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3810027A DE3810027A1 (de) 1988-03-24 1988-03-24 Radiergummi

Publications (1)

Publication Number Publication Date
ES2077567T3 true ES2077567T3 (es) 1995-12-01

Family

ID=6350622

Family Applications (1)

Application Number Title Priority Date Filing Date
ES89103727T Expired - Lifetime ES2077567T3 (es) 1988-03-24 1989-03-03 Goma de borrar.

Country Status (4)

Country Link
EP (1) EP0334075B1 (es)
AT (1) ATE124916T1 (es)
DE (2) DE3810027A1 (es)
ES (1) ES2077567T3 (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993016887A1 (en) * 1992-02-28 1993-09-02 Pentel Kabushiki Kaisha Eraser
US6441091B1 (en) * 2001-07-27 2002-08-27 Binney & Smith Eraser

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3738951A (en) * 1970-07-24 1973-06-12 Phillips Petroleum Co Nonsmearing eraser elastomer compositions
DE3005298C2 (de) * 1980-02-13 1982-07-15 Fa. J.S. Staedtler, 8500 Nürnberg Thermoplastischer Radiergummi
DE3005332C2 (de) * 1980-02-13 1982-06-03 Fa. J.S. Staedtler, 8500 Nürnberg Radiergummi mit thermoplastischem Bindemittel
DE3406896C2 (de) * 1984-02-25 1986-12-11 Fa. J.S. Staedtler, 8500 Nürnberg Radiergummi mit thermoplastischer Substanz und Verfahren zu dessen Herstellung

Also Published As

Publication number Publication date
EP0334075A2 (de) 1989-09-27
DE58909334D1 (de) 1995-08-17
ATE124916T1 (de) 1995-07-15
EP0334075A3 (de) 1991-02-27
EP0334075B1 (de) 1995-07-12
DE3810027A1 (de) 1989-10-05
DE3810027C2 (es) 1991-08-08

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