GB1238881A - - Google Patents

Info

Publication number
GB1238881A
GB1238881A GB1238881DA GB1238881A GB 1238881 A GB1238881 A GB 1238881A GB 1238881D A GB1238881D A GB 1238881DA GB 1238881 A GB1238881 A GB 1238881A
Authority
GB
United Kingdom
Prior art keywords
polymer
acrylonitrile
jan
heating
weight
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
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 filed Critical
Publication of GB1238881A publication Critical patent/GB1238881A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B29B13/023—Half-products, e.g. films, plates
    • 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/002—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor characterised by the choice of material
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

1,238,881. R.F. heating of polymers. C. GOLDMAN. 13 May, 1968 [25 Jan., 1968; 31 Jan., 1968], Nos. 3897/68 and 4989/68. Headings C3G and C3P. A thermoplastic polymer is rendered more responsive to R.F. heating by the incorporation therein of 0À2-20% by weight of an acrylonitrile polymer, particularly polyacrylonitrile or a butadiene-acrylonitrile copolymer of 30-50% by weight acrylonitrile content. Polymers exemplified are polyethylene, polypropylene, high impact polystyrene and ABS polymer. The compositions may also contain titanium dioxides.
GB1238881D 1968-01-25 1968-01-25 Expired GB1238881A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB389768 1968-01-25

Publications (1)

Publication Number Publication Date
GB1238881A true GB1238881A (en) 1971-07-14

Family

ID=9766926

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1238881D Expired GB1238881A (en) 1968-01-25 1968-01-25

Country Status (3)

Country Link
BE (1) BE769930A (en)
CA (1) CA986637A (en)
GB (1) GB1238881A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4335227A (en) * 1979-08-02 1982-06-15 Emery Industries, Inc. Rubber compositions and method of vulcanizing same in ultrahigh-frequency field
US4452943A (en) * 1971-09-10 1984-06-05 Conrad Goldman Thermoforming of thermoplastic polymers
US4597922A (en) * 1984-05-29 1986-07-01 Shell Oil Company Molding RF moldable thermoplastic compositions
US4921647A (en) * 1988-10-27 1990-05-01 Shell Oil Company Method of shaping a laminated thermoplastic billet
US4937021A (en) * 1988-09-19 1990-06-26 Shell Oil Company Laminated billet process
EP0638404A1 (en) * 1993-07-23 1995-02-15 Palboard Ltd. Method and apparatus for producing plastic products
US6588772B2 (en) 2000-12-28 2003-07-08 The Burton Corporation Sintered sheet plastic material and gliding board base material

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4452943A (en) * 1971-09-10 1984-06-05 Conrad Goldman Thermoforming of thermoplastic polymers
US4335227A (en) * 1979-08-02 1982-06-15 Emery Industries, Inc. Rubber compositions and method of vulcanizing same in ultrahigh-frequency field
US4597922A (en) * 1984-05-29 1986-07-01 Shell Oil Company Molding RF moldable thermoplastic compositions
US4937021A (en) * 1988-09-19 1990-06-26 Shell Oil Company Laminated billet process
US4921647A (en) * 1988-10-27 1990-05-01 Shell Oil Company Method of shaping a laminated thermoplastic billet
EP0638404A1 (en) * 1993-07-23 1995-02-15 Palboard Ltd. Method and apparatus for producing plastic products
US5589260A (en) * 1993-07-23 1996-12-31 Palboard Ltd. Method and apparatus for producing plastic products
US6588772B2 (en) 2000-12-28 2003-07-08 The Burton Corporation Sintered sheet plastic material and gliding board base material

Also Published As

Publication number Publication date
BE769930A (en) 1971-11-16
CA986637A (en) 1976-03-30

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee