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GB657637A - Reclaiming rubber - Google Patents

Reclaiming rubber

Info

Publication number
GB657637A
GB657637A GB2573548A GB2573548A GB657637A GB 657637 A GB657637 A GB 657637A GB 2573548 A GB2573548 A GB 2573548A GB 2573548 A GB2573548 A GB 2573548A GB 657637 A GB657637 A GB 657637A
Authority
GB
United Kingdom
Prior art keywords
buna
rubber
lauryl mercaptan
tertiary
tertiary lauryl
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
GB2573548A
Inventor
Stanley Francis Warren
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.)
U S Rubber Reclaiming Co Inc
Original Assignee
U S Rubber Reclaiming Co Inc
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 U S Rubber Reclaiming Co Inc filed Critical U S Rubber Reclaiming Co Inc
Priority to GB2573548A priority Critical patent/GB657637A/en
Publication of GB657637A publication Critical patent/GB657637A/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
    • C08J11/28—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 organic compounds containing nitrogen, sulfur or phosphorus
    • 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)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Abstract

Vulcanized synthetic rubbers, such as those known under the names of "Buna" S and "Buna" A ("Buna" being a Registered Trade Mark) are reclaimed by heating in the presence of tertiary lauryl mercaptan. The process may be carried out at a temperature of 300-500 DEG F., preferably using the extrusion apparatus of Specification 657,614. In examples, the rubber is treated with tertiary lauryl mercaptan together with aromatic petroleum solvents, petroleum resin, engine oil, lecithin, water, tertiary butyl catechol, ethyl butyric acid and/or Naftolen 100. Specifications 610,812 and 610,901, [both in Group V], are referred to.ALSO:Vulcanized natural or synthetic rubber is reclaimed by heating the rubber in the presence of tertiary lauryl mercaptan. The synthetic rubbers may be those known under the names "Buna" S, and "Buna" A, ("Buna" being a Registered Trade Mark). The process may be carried out at a temperature of 300-500 DEG F., preferably using the extrusion apparatus of Specification 657,614. In examples the rubber is treated with tertiary lauryl mercaptan together with substances chosen from aromatic petroleum solvents, petroleum resin, engine oil, lecithin, water, tertiary butyl catechol, ethyl butyric acid and naftolen 100. Specifications 610,812 and 610,901 are referred to.
GB2573548A 1946-09-25 1946-09-25 Reclaiming rubber Expired GB657637A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2573548A GB657637A (en) 1946-09-25 1946-09-25 Reclaiming rubber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2573548A GB657637A (en) 1946-09-25 1946-09-25 Reclaiming rubber

Publications (1)

Publication Number Publication Date
GB657637A true GB657637A (en) 1951-09-26

Family

ID=10232430

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2573548A Expired GB657637A (en) 1946-09-25 1946-09-25 Reclaiming rubber

Country Status (1)

Country Link
GB (1) GB657637A (en)

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