ES483610A1 - Procedimiento para la fabricacion de borradores de goma a base de cloruro de polivinilo - Google Patents
Procedimiento para la fabricacion de borradores de goma a base de cloruro de poliviniloInfo
- Publication number
- ES483610A1 ES483610A1 ES483610A ES483610A ES483610A1 ES 483610 A1 ES483610 A1 ES 483610A1 ES 483610 A ES483610 A ES 483610A ES 483610 A ES483610 A ES 483610A ES 483610 A1 ES483610 A1 ES 483610A1
- Authority
- ES
- Spain
- Prior art keywords
- eraser
- polyvinyl chloride
- manufacture
- erasers
- smudge
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L21/00—Compositions of unspecified rubbers
-
- 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
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L7/00—Compositions of natural rubber
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/02—Copolymers with acrylonitrile
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/06—Copolymers with styrene
Abstract
"Procedimiento para la fabricación de borradores de goma a base de cloruro de polivinilo", caracterizado por cuanto en principio utilizando un mezclador de marcha rápida, se procederá a realizar el mezclado del cloruro de polivinilo con un plastificante, procediendose seguidamente a añadir a dicha mezcla una masa de caucho no vulcanizable y de estructura granulosa o en forma de grano, añadiendose a continuación los ingredientes de relleno, que también serán debidamente mezclados, posteriormente dicha masa es secada hasta llevarla a adquirir una estructura pulverulenta, extrusionandose la misma a temperatura escalonada comprendida entre 80 y 150 grados procediendose a continuación al enfriamiento de dicha colada en una baño de agua tras de lo cual, es cortada en los trozos o pedazos apropiados y necesarios.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2837159A DE2837159C2 (de) | 1978-08-25 | 1978-08-25 | Radiergummi und Verfahren zu dessen Herstellung |
Publications (1)
Publication Number | Publication Date |
---|---|
ES483610A1 true ES483610A1 (es) | 1980-05-16 |
Family
ID=6047903
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES483610A Expired ES483610A1 (es) | 1978-08-25 | 1979-08-24 | Procedimiento para la fabricacion de borradores de goma a base de cloruro de polivinilo |
Country Status (4)
Country | Link |
---|---|
US (2) | US4335033A (es) |
JP (1) | JPS5534990A (es) |
DE (1) | DE2837159C2 (es) |
ES (1) | ES483610A1 (es) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60121956U (ja) * | 1984-01-26 | 1985-08-17 | 鐘淵化学工業株式会社 | 自動車用サイドモ−ル |
US5269874A (en) * | 1990-07-26 | 1993-12-14 | Minnesota Mining And Manufacturing Company | Portable apparatus for removing heat softenable surface coverings |
US5190620A (en) * | 1990-07-26 | 1993-03-02 | Minnesota Mining And Manufacturing Company | Method of using a rotatable disc to remove heat softenable surface coverings |
US6056468A (en) * | 1998-10-02 | 2000-05-02 | Niewiadomski; Mitchell | Eraser for whiteboard marker |
US7316841B1 (en) * | 1999-08-30 | 2008-01-08 | Sakura Color Products Corporation | Eraser |
JP4681619B2 (ja) * | 2005-01-31 | 2011-05-11 | クーパー タイヤ アンド ラバー カンパニー | ゴムタイヤ及び固形ゴムホイール試験室試料の試験方法及び装置 |
JP2007253500A (ja) * | 2006-03-24 | 2007-10-04 | Asahi Kasei Chemicals Corp | 樹脂ストランドとその製造方法、及びペレット |
WO2008090590A1 (ja) * | 2007-01-26 | 2008-07-31 | Seed Company Ltd. | エラストマー組成物、その製造方法、及び該組成物を用いた字消し |
WO2009060554A1 (ja) * | 2007-11-08 | 2009-05-14 | Seed Company Ltd. | エラストマー組成物、その製造方法、及び該組成物を用いた字消し |
WO2010010696A1 (ja) * | 2008-07-25 | 2010-01-28 | 株式会社シード | 研磨材入り字消し |
KR20200096925A (ko) | 2017-12-12 | 2020-08-14 | 사쿠라 컬러 프로덕츠 코포레이션 | 지우개 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2605247A (en) * | 1950-06-17 | 1952-07-29 | Firestone Tire & Rubber Co | Artificial leather product from a butadiene-acrylonitrile copolymer, calcined clay, and polyvinyl chloride resins, and process of producing same |
US3936417A (en) * | 1968-07-23 | 1976-02-03 | Grandview Industries, Limited | Coilable polyvinyl chloride products and methods and compositions for producing the same |
GB1338396A (en) * | 1970-06-12 | 1973-11-21 | Coal Industry Patents Ltd | Synthetic pitches or fields for ball games |
-
1978
- 1978-08-25 DE DE2837159A patent/DE2837159C2/de not_active Expired
-
1979
- 1979-08-16 US US06/067,001 patent/US4335033A/en not_active Expired - Lifetime
- 1979-08-24 JP JP10731879A patent/JPS5534990A/ja active Pending
- 1979-08-24 ES ES483610A patent/ES483610A1/es not_active Expired
-
1981
- 1981-11-06 US US06/318,923 patent/US4393022A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE2837159C2 (de) | 1980-03-13 |
JPS5534990A (en) | 1980-03-11 |
DE2837159B1 (de) | 1979-06-21 |
US4393022A (en) | 1983-07-12 |
US4335033A (en) | 1982-06-15 |
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