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
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.
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)
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)
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 |
-
1988
- 1988-03-24 DE DE3810027A patent/DE3810027A1/de active Granted
-
1989
- 1989-03-03 DE DE58909334T patent/DE58909334D1/de not_active Expired - Fee Related
- 1989-03-03 ES ES89103727T patent/ES2077567T3/es not_active Expired - Lifetime
- 1989-03-03 EP EP89103727A patent/EP0334075B1/de not_active Expired - Lifetime
- 1989-03-03 AT AT89103727T patent/ATE124916T1/de not_active IP Right Cessation
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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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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