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GB1303643A - - Google Patents

Info

Publication number
GB1303643A
GB1303643A GB3189069A GB1303643DA GB1303643A GB 1303643 A GB1303643 A GB 1303643A GB 3189069 A GB3189069 A GB 3189069A GB 1303643D A GB1303643D A GB 1303643DA GB 1303643 A GB1303643 A GB 1303643A
Authority
GB
United Kingdom
Prior art keywords
composition
housing
june
free radicals
generate free
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
GB3189069A
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 GB1303643A publication Critical patent/GB1303643A/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
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • 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
    • B29K2101/00—Use of unspecified macromolecular compounds as moulding material
    • B29K2101/10—Thermosetting resins
    • 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
    • B29K2301/00—Use of unspecified macromolecular compounds as reinforcement
    • B29K2301/10—Thermosetting resins

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

1303643 Moulding plastic substances IMPERIAL CHEMICAL INDUSTRIES Ltd 15 June 1970 [24 June 1969] 31890/69 Heading B5A In a process for melt-shaping cross-linkable plastics compositions comprising polythene or an ethylene copolymer in which there is dispersed a peroxide cross-linking agent which is able to generate free radicals at temperatures substantially above that at which the composition becomes molten, the composition is fed from a hopper 1 to the heated barrel 4 of a screw extruder where it is melted and forced through a breaker plate 12 and bore 8 to a housing 18 containing a rotary member 17 whereby the temperature of the molten composition is increased by shear forces causing the crosslinking agent to generate free radicals before it passes from the housing to a mould or extrusion die. The barrel wall includes steam ducts and the housing may incorporate electric heaters 19. The composition may include foaming agents and glass, asbestos, carbon or plastics fibres.
GB3189069A 1969-06-24 1969-06-24 Expired GB1303643A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3189069 1969-06-24

Publications (1)

Publication Number Publication Date
GB1303643A true GB1303643A (en) 1973-01-17

Family

ID=10329923

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3189069A Expired GB1303643A (en) 1969-06-24 1969-06-24

Country Status (2)

Country Link
AU (1) AU1681770A (en)
GB (1) GB1303643A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2218183A1 (en) * 1973-02-20 1974-09-13 Krupp Gmbh Extrusion system for crosslinkable polymers - where the shear work input can be varied independently of the polymer throughput
US4289716A (en) * 1978-02-16 1981-09-15 Kabel- Und Metallwerke Gutehoffnungshutte A.G. Thermally insulating tubes
US4365946A (en) * 1980-02-01 1982-12-28 Hermann Berstorff Maschinenbau Gmbh Apparatus for continuously processing rubber, elastomers, plastics and like materials which can be vulcanized or cross-linked
US4409164A (en) * 1980-03-25 1983-10-11 Stamicarbon, B.V. Process of making products consisting of foamed and/or cross-linked synthetic polymers
US4857250A (en) * 1984-04-13 1989-08-15 Union Carbide Corporation One-extrusion method of making a shaped crosslinkable extruded polymeric product
US5500172A (en) * 1992-09-09 1996-03-19 Eastman Kodak Company Method for plasticizing particulate plastic material
CN110356658A (en) * 2019-08-07 2019-10-22 广州市耐力环保科技有限公司 Feeding machanism is used in a kind of production of sealant
CN115093633A (en) * 2022-06-08 2022-09-23 宝新高分子科技(广州)有限公司 Ceramic fireproof flame-retardant cable material and processing device thereof
CN117227137A (en) * 2023-11-15 2023-12-15 河北聚程伟业保温材料有限公司 Plastic extruder and production method thereof
CN118977386A (en) * 2024-09-13 2024-11-19 湖北科普达高分子材料股份有限公司 A modified plastic processing extrusion device

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2218183A1 (en) * 1973-02-20 1974-09-13 Krupp Gmbh Extrusion system for crosslinkable polymers - where the shear work input can be varied independently of the polymer throughput
US4289716A (en) * 1978-02-16 1981-09-15 Kabel- Und Metallwerke Gutehoffnungshutte A.G. Thermally insulating tubes
US4365946A (en) * 1980-02-01 1982-12-28 Hermann Berstorff Maschinenbau Gmbh Apparatus for continuously processing rubber, elastomers, plastics and like materials which can be vulcanized or cross-linked
US4409164A (en) * 1980-03-25 1983-10-11 Stamicarbon, B.V. Process of making products consisting of foamed and/or cross-linked synthetic polymers
US4857250A (en) * 1984-04-13 1989-08-15 Union Carbide Corporation One-extrusion method of making a shaped crosslinkable extruded polymeric product
US5500172A (en) * 1992-09-09 1996-03-19 Eastman Kodak Company Method for plasticizing particulate plastic material
CN110356658A (en) * 2019-08-07 2019-10-22 广州市耐力环保科技有限公司 Feeding machanism is used in a kind of production of sealant
CN115093633A (en) * 2022-06-08 2022-09-23 宝新高分子科技(广州)有限公司 Ceramic fireproof flame-retardant cable material and processing device thereof
CN115093633B (en) * 2022-06-08 2022-12-30 宝新高分子科技(广州)有限公司 Ceramic fireproof flame-retardant cable material and processing device thereof
CN117227137A (en) * 2023-11-15 2023-12-15 河北聚程伟业保温材料有限公司 Plastic extruder and production method thereof
CN117227137B (en) * 2023-11-15 2024-01-09 河北聚程伟业保温材料有限公司 Plastic extruder and application method thereof
CN118977386A (en) * 2024-09-13 2024-11-19 湖北科普达高分子材料股份有限公司 A modified plastic processing extrusion device

Also Published As

Publication number Publication date
AU1681770A (en) 1972-01-06

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees