GB564514A - A process for the regeneration of synthetic rubber-like materials, and the utilisation of the regenerated material so obtained - Google Patents

A process for the regeneration of synthetic rubber-like materials, and the utilisation of the regenerated material so obtained

Info

Publication number
GB564514A
GB564514A GB252943A GB252943A GB564514A GB 564514 A GB564514 A GB 564514A GB 252943 A GB252943 A GB 252943A GB 252943 A GB252943 A GB 252943A GB 564514 A GB564514 A GB 564514A
Authority
GB
United Kingdom
Prior art keywords
synthetic rubber
rollers
friction ratio
utilisation
regeneration
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
GB252943A
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.)
Dunlop Rubber Co Ltd
Original Assignee
Dunlop Rubber Co Ltd
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 Dunlop Rubber Co Ltd filed Critical Dunlop Rubber Co Ltd
Priority to GB252943A priority Critical patent/GB564514A/en
Publication of GB564514A publication Critical patent/GB564514A/en
Priority to FR936519D priority patent/FR936519A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J11/00—Recovery or working-up of waste materials
    • C08J11/04—Recovery or working-up of waste materials of polymers
    • C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2321/00—Characterised by the use of unspecified rubbers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Tires In General (AREA)

Abstract

Vulcanized synthetic rubber, such as butadiene polymers alone or together with styrene or acrylonitrile, is reclaimed by comminuting, e.g. to fine crumb by grinding rollers of 5 to 1 friction ratio, mechanically working between rollers, e.g. of friction ratio 1.75 to 1 at a temperature below 60 DEG C. until the particles cohere to form a sheet which is thereupon worked between rollers at a temperature between 60 and 120 DEG C., e.g. with a friction ratio 1.2 to 1. A softener, e.g. up to 10 per cent of pine oil, pine tar or coumarone resin may be incorporated before, during, or after mechanical working. The product may be used for re-treading tyres.
GB252943A 1943-02-16 1943-02-16 A process for the regeneration of synthetic rubber-like materials, and the utilisation of the regenerated material so obtained Expired GB564514A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB252943A GB564514A (en) 1943-02-16 1943-02-16 A process for the regeneration of synthetic rubber-like materials, and the utilisation of the regenerated material so obtained
FR936519D FR936519A (en) 1943-02-16 1946-12-06 Process for the regeneration of synthetic rubber-like materials, and use of the regenerates thus obtained

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB252943A GB564514A (en) 1943-02-16 1943-02-16 A process for the regeneration of synthetic rubber-like materials, and the utilisation of the regenerated material so obtained

Publications (1)

Publication Number Publication Date
GB564514A true GB564514A (en) 1944-10-02

Family

ID=9741175

Family Applications (1)

Application Number Title Priority Date Filing Date
GB252943A Expired GB564514A (en) 1943-02-16 1943-02-16 A process for the regeneration of synthetic rubber-like materials, and the utilisation of the regenerated material so obtained

Country Status (2)

Country Link
FR (1) FR936519A (en)
GB (1) GB564514A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3036981A (en) * 1957-12-31 1962-05-29 Hercules Powder Co Ltd Process for rendering a cross-linked carbon black-containing polyethylene extrudableand resulting product

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3036981A (en) * 1957-12-31 1962-05-29 Hercules Powder Co Ltd Process for rendering a cross-linked carbon black-containing polyethylene extrudableand resulting product

Also Published As

Publication number Publication date
FR936519A (en) 1948-07-22

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