GB274797A - Improvement in method of reclaiming rubber and fabric from scrap - Google Patents

Improvement in method of reclaiming rubber and fabric from scrap

Info

Publication number
GB274797A
GB274797A GB2371226A GB2371226A GB274797A GB 274797 A GB274797 A GB 274797A GB 2371226 A GB2371226 A GB 2371226A GB 2371226 A GB2371226 A GB 2371226A GB 274797 A GB274797 A GB 274797A
Authority
GB
United Kingdom
Prior art keywords
solvent
rubber
scrap
fabric
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
GB2371226A
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.)
Hercules Powder Co
Original Assignee
Hercules Powder Co
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 Hercules Powder Co filed Critical Hercules Powder Co
Publication of GB274797A publication Critical patent/GB274797A/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
    • 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

Abstract

274,797. Hercules Powder Co., (Assignees of Smith, L. T.). July 20, 1926, [Convention date]. Devulcanizing rubber. - In the reclaiming of rubber and fabric from scrap a terpene derivative mixture is used having a boiling point range of 160-200‹ C. and a specific gravity of 0.86. This derivative may be the fraction of the extraction of pine wood distilled between 160-200‹ C., and consists mainly of dipentene, but also contains pinene, terpinen, terpinolene, fenchene, camphene, cymene, menthane and limonene. As solvent may also be employed pine oil which has been heated with a dehydrating agent such as fuller's earth, iodine, or sulphuric acid. According to an example, one part of scrap rubber is heated to 100-180‹ C. with 1-5 parts of solvent as above until dissolved, and is strained through a screen. The fabric remaining on the screen may be heated again with further solvent. The solution, after further straining, is distilled to remove the solvent with which the sulphur has combined. The solvent may be freed from sulphur for future use by fractional distillation or by heating with caustic soda.
GB2371226A 1926-07-20 1926-09-25 Improvement in method of reclaiming rubber and fabric from scrap Expired GB274797A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US274797XA 1926-07-20 1926-07-20

Publications (1)

Publication Number Publication Date
GB274797A true GB274797A (en) 1927-10-06

Family

ID=21837962

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2371226A Expired GB274797A (en) 1926-07-20 1926-09-25 Improvement in method of reclaiming rubber and fabric from scrap

Country Status (1)

Country Link
GB (1) GB274797A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2144047A (en) * 1983-06-17 1985-02-27 Bruss Ti Kirova Apparatus for thermal decomposition of polymetric materials

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2144047A (en) * 1983-06-17 1985-02-27 Bruss Ti Kirova Apparatus for thermal decomposition of polymetric materials

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