GB438555A - Improvements in and relating to the treatment of vulcanised rubber - Google Patents

Improvements in and relating to the treatment of vulcanised rubber

Info

Publication number
GB438555A
GB438555A GB2146833A GB2146833A GB438555A GB 438555 A GB438555 A GB 438555A GB 2146833 A GB2146833 A GB 2146833A GB 2146833 A GB2146833 A GB 2146833A GB 438555 A GB438555 A GB 438555A
Authority
GB
United Kingdom
Prior art keywords
rubber
solvent
comminuted
vulcanized
heated
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
GB2146833A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2146833A priority Critical patent/GB438555A/en
Publication of GB438555A publication Critical patent/GB438555A/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
    • C08J11/18—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 by treatment with organic material
    • C08J11/20—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 by treatment with organic material by treatment with hydrocarbons or halogenated hydrocarbons
    • 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
    • C08J2307/00—Characterised by the use of natural rubber
    • 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)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Abstract

Vulcanized rubber is plasticized for re-use by incorporating with comminuted rubber, e.g. tyre scrap, a solvent comprising heveene and like higher boiling point oils obtained by distilling crude or vulcanized rubber and rectifying the distillate for the removal of its isoprene fraction, the process being carried out at a temperature and for a period of time sufficient to ensure devulcanization. The amount of solvent may be as low as two and a half per cent of the rubber, or sufficiently high to dissolve the rubber completely. In an example, finely comminuted tyre tread is heated to from 120-150 DEG C. with 2 1/2 per cent of the solvent over a period of 12-15 hours. In another example, finely comminuted vulcanized waste is placed in a vessel with 4-5 times its weight of solvent and heated at a temperature not exceeding 150 DEG C. until all the rubber is dissolved. In other examples, the solvent is incorporated with the comminuted rubber in a roller mill.
GB2146833A 1934-05-28 1934-05-28 Improvements in and relating to the treatment of vulcanised rubber Expired GB438555A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2146833A GB438555A (en) 1934-05-28 1934-05-28 Improvements in and relating to the treatment of vulcanised rubber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2146833A GB438555A (en) 1934-05-28 1934-05-28 Improvements in and relating to the treatment of vulcanised rubber

Publications (1)

Publication Number Publication Date
GB438555A true GB438555A (en) 1935-11-25

Family

ID=10163448

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2146833A Expired GB438555A (en) 1934-05-28 1934-05-28 Improvements in and relating to the treatment of vulcanised rubber

Country Status (1)

Country Link
GB (1) GB438555A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003014207A1 (en) * 2001-08-08 2003-02-20 The Fulford Group Inc. Process for regeneration of rubber from scrap

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003014207A1 (en) * 2001-08-08 2003-02-20 The Fulford Group Inc. Process for regeneration of rubber from scrap
US7342052B2 (en) 2001-08-08 2008-03-11 The Fulford Group Inc. Process for regeneration of an elastomer from scrap

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