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 polivinilo

Info

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
Application number
ES483610A
Other languages
English (en)
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.)
JS Staedtler KG
Original Assignee
JS Staedtler KG
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 JS Staedtler KG filed Critical JS Staedtler KG
Publication of ES483610A1 publication Critical patent/ES483610A1/es
Expired legal-status Critical Current

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

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)
  • Processes Of Treating Macromolecular Substances (AREA)

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.
ES483610A 1978-08-25 1979-08-24 Procedimiento para la fabricacion de borradores de goma a base de cloruro de polivinilo Expired ES483610A1 (es)

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 (12)

* Cited by examiner, † Cited by third party
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
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
US5269874A (en) * 1990-07-26 1993-12-14 Minnesota Mining And Manufacturing Company Portable apparatus for removing 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
USD510105S1 (en) 2004-07-21 2005-09-27 Acco Brands, Inc. Marker
WO2006083766A2 (en) * 2005-01-31 2006-08-10 Cooper Tire & Rubber Company Method and apparatus for testing rubber tires or solid rubber wheel laboratory samples
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
EP2329961B1 (en) * 2008-07-25 2013-04-03 Seed Company Ltd. Abrasive-containing eraser
KR20200096925A (ko) 2017-12-12 2020-08-14 사쿠라 컬러 프로덕츠 코포레이션 지우개

Family Cites Families (3)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
JPS5534990A (en) 1980-03-11
DE2837159C2 (de) 1980-03-13
DE2837159B1 (de) 1979-06-21
US4393022A (en) 1983-07-12
US4335033A (en) 1982-06-15

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