GB607690A - An improved process for heating compositions by high-frequency alternating electric currents - Google Patents

An improved process for heating compositions by high-frequency alternating electric currents

Info

Publication number
GB607690A
GB607690A GB1255045A GB1255045A GB607690A GB 607690 A GB607690 A GB 607690A GB 1255045 A GB1255045 A GB 1255045A GB 1255045 A GB1255045 A GB 1255045A GB 607690 A GB607690 A GB 607690A
Authority
GB
United Kingdom
Prior art keywords
nitraniline
nitronaphthalene
frequency alternating
alternating electric
dinitrobenzene
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
GB1255045A
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 GB1255045A priority Critical patent/GB607690A/en
Publication of GB607690A publication Critical patent/GB607690A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/32—Compounds containing nitrogen bound to oxygen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B13/00—Conditioning or physical treatment of the material to be shaped
    • B29B13/02—Conditioning or physical treatment of the material to be shaped by heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/12—Dielectric heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C73/00—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D
    • B29C73/24—Apparatus or accessories not otherwise provided for
    • B29C73/30—Apparatus or accessories not otherwise provided for for local pressing or local heating
    • B29C73/34—Apparatus or accessories not otherwise provided for for local pressing or local heating for local heating
    • 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
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/28—Treatment by wave energy or particle radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/02—Deburring or deflashing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2021/00—Use of unspecified rubbers as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/06—PVC, i.e. polyvinylchloride
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2030/00—Pneumatic or solid tyres or parts thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Tyre Moulding (AREA)

Abstract

Process for the heat treatment of synthetic thermoplastic and thermosetting resins, particularly polyvinyl chloride, comprises heating at a predetermined temperature by the action of a high-frequency alternating electric current a composition containing the resin mixed with organic polar material which is molten at said temperature and which comprises an organic compound having a dipole moment in excess of one Debye unit. The organic polar material may be a single compound, e.g. a -nitronaphthalene, p-nitraniline, m-nitraniline, p-nitrophenol, or m-dinitrobenzene or a mixture, preferably eutectic, of organic compounds at least one of which has a dipole moment in excess of one Debye unit, e.g. m - dinitrobenzene and m-nitraniline, p-nitraniline and phenol, a -nitronaphthalene and naphthalene, a -nitronaphthalene and 2-nitro-4-hydroxytoluene, a -nitronaphthalene and benzophenone, a -nitronaphthalene and p-nitraniline, or may be a commercial mixture of dimethylol nitroethanes. Lead stearate and plasticiser may be added.ALSO:Process for the heat treatment of natural or synthetic rubber comprises heating at a predetermined temperature by the action of a high frequency alternating electric current a composition containing rubber mixed with organic polar material which is molten at the said temperature and which comprises an organic compound having a dipole moment in excess of one Debye unit. The organic polar material may be a single compound, e.g. a -nitro naphthalene, p-nitraniline, m-nitraniline, p-nitrophenol, or m-dinitrobenzene or a mixture, preferably eutectic, of organic compounds at least one of which has a dipole moment in excess of one Debye unit, e.g. m-dinitrobenzene and m-nitraniline, p-nitraniline and phenol, a -nitronaphthalene and naphthalene, a -nitronaphthalene and 2-nitro-4-hydroxytoluene, a -nitronaphthalene and benzophenone, a -nitronaphthalene and p-nitraniline, or may be a commercial mixture of dimethylol nitroethanes. The process may be used for uniting two vulcanized rubber surfaces by coating one or both of the surfaces with a heat vulcanizable rubber composition according to the invention, pressing the surfaces together and subjecting the assembly to a high frequency alternating electric current, or for repairing a damaged rubber tyre by filling a cavity in the damaged portion with a rubber composition according to the invention and heating by a high frequency alternating electric current.
GB1255045A 1945-05-18 1945-05-18 An improved process for heating compositions by high-frequency alternating electric currents Expired GB607690A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1255045A GB607690A (en) 1945-05-18 1945-05-18 An improved process for heating compositions by high-frequency alternating electric currents

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1255045A GB607690A (en) 1945-05-18 1945-05-18 An improved process for heating compositions by high-frequency alternating electric currents

Publications (1)

Publication Number Publication Date
GB607690A true GB607690A (en) 1948-09-03

Family

ID=10006690

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1255045A Expired GB607690A (en) 1945-05-18 1945-05-18 An improved process for heating compositions by high-frequency alternating electric currents

Country Status (1)

Country Link
GB (1) GB607690A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2744082A (en) * 1951-08-17 1956-05-01 Chemstrand Corp Dissolution of acrylonitrile polymers
US3044151A (en) * 1954-09-03 1962-07-17 Myron A Coler Method of making electrically conductive terminals
US3487132A (en) * 1965-05-17 1969-12-30 Burt Thorne Production of porous plastic materials by means of dielectric heating
EP0023675A1 (en) * 1979-08-02 1981-02-11 Chemische Werke Hüls Ag Ethene-alpha-olefin-(diene) rubber compositions containing conventional vulcanizing and other additives and vulcanization thereof in a high frequency field
EP0049194A1 (en) * 1980-09-23 1982-04-07 STRATIFORME Société Anonyme Process for polycondensating thermohardening resin compositions

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2744082A (en) * 1951-08-17 1956-05-01 Chemstrand Corp Dissolution of acrylonitrile polymers
US3044151A (en) * 1954-09-03 1962-07-17 Myron A Coler Method of making electrically conductive terminals
US3487132A (en) * 1965-05-17 1969-12-30 Burt Thorne Production of porous plastic materials by means of dielectric heating
EP0023675A1 (en) * 1979-08-02 1981-02-11 Chemische Werke Hüls Ag Ethene-alpha-olefin-(diene) rubber compositions containing conventional vulcanizing and other additives and vulcanization thereof in a high frequency field
EP0049194A1 (en) * 1980-09-23 1982-04-07 STRATIFORME Société Anonyme Process for polycondensating thermohardening resin compositions

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