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GB922547A - Improvements in or relating to foamed polymers - Google Patents

Improvements in or relating to foamed polymers

Info

Publication number
GB922547A
GB922547A GB8334/60A GB833460A GB922547A GB 922547 A GB922547 A GB 922547A GB 8334/60 A GB8334/60 A GB 8334/60A GB 833460 A GB833460 A GB 833460A GB 922547 A GB922547 A GB 922547A
Authority
GB
United Kingdom
Prior art keywords
granules
polymer granules
expanded
polystyrenes
sintered
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
GB8334/60A
Inventor
Job Johannes Boot
Wilfred De Ferry Anderson
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.)
Formica International Ltd
Original Assignee
Formica International 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 Formica International Ltd filed Critical Formica International Ltd
Priority to GB8334/60A priority Critical patent/GB922547A/en
Publication of GB922547A publication Critical patent/GB922547A/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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/22—After-treatment of expandable particles; Forming foamed products
    • C08J9/228—Forming foamed products
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/3461—Making or treating expandable particles
    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0014—Use of organic additives
    • C08J9/0019—Use of organic additives halogenated
    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0014—Use of organic additives
    • C08J9/0033—Use of organic additives containing sulfur
    • 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
    • C08K5/02—Halogenated hydrocarbons
    • 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
    • C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
    • C08K5/43—Compounds containing sulfur bound to nitrogen
    • C08K5/44—Sulfenamides
    • 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
    • C08J2325/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
    • 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
    • C08J2325/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
    • C08J2325/18—Homopolymers or copolymers of aromatic monomers containing elements other than carbon and hydrogen
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

Expanded polymer granules are produced or sintered by heating respectively unexpanded polymer granules containing a foaming agent or expanded polymer granules using a high frequency alternating electric field. The granules may contain a compatible substance of higher power factor which may also be a plasticizer for the polymer, e.g. toluene sulphonamides, tetrachlorobiphenyl or dichloropentanes. Specified polymers are polystyrenes and chlorinated or brominated polystyrenes; polyvinyl chloride is also mentioned.ALSO:Expanded polymer granules are produced or sintered by heating respectively unexpanded polymer granules containing a foaming agent or expanded polymer granules using a high frequency alternating electric field. The granules may contain a compatible substance of higher power factor which may also be a plasticizer for the polymer, e.g. toluene sulphanamides, tetrachlorobiphenyl or dichloropentanes. Specified polymers are polystyrenes and chlorinated or brominated polystyrenes; polyvinyl chloride is also mentioned. In the examples, polystyrene beads containing petroleum ether are expanded and subsequently sintered into sheets by passing them on a conveyer belt between spaced electrodes, the potential difference between the electrodes being 103 volts for the expansion and 5 X 104 volts for the sintering and the frequency being 12 X 106 cycles per second; for the expansion stage the distance between the electrodes increases in the direction of travel of the conveyer belt.
GB8334/60A 1960-03-09 1960-03-09 Improvements in or relating to foamed polymers Expired GB922547A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8334/60A GB922547A (en) 1960-03-09 1960-03-09 Improvements in or relating to foamed polymers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8334/60A GB922547A (en) 1960-03-09 1960-03-09 Improvements in or relating to foamed polymers

Publications (1)

Publication Number Publication Date
GB922547A true GB922547A (en) 1963-04-03

Family

ID=9850548

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8334/60A Expired GB922547A (en) 1960-03-09 1960-03-09 Improvements in or relating to foamed polymers

Country Status (1)

Country Link
GB (1) GB922547A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2088474A1 (en) * 1970-05-11 1972-01-07 Dow Chemical Co
US4108928A (en) 1976-03-02 1978-08-22 Hanson Industries Inc. Method of producing a viscous flowable pressure-compensating fitting composition from hollow thermoplastic microblends with the use of high frequency heating and dispensing the composition into a sealable, flexible, protective enclosure means
US4173608A (en) * 1976-10-22 1979-11-06 Isobox-Barbier Process and apparatus for the manufacture of expanded plastics materials
FR2450685A1 (en) * 1979-03-09 1980-10-03 Japan Styrene Paper Corp PROCESS FOR PRODUCING POLYSTYRENE FOAM PANELS
EP0373441A1 (en) 1988-12-16 1990-06-20 BASF Aktiengesellschaft Process for preparing styrenic foam particles
AU627254B2 (en) * 1988-12-16 1992-08-20 Basf Aktiengesellschaft Preparation of styrene polymer foam particles

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2088474A1 (en) * 1970-05-11 1972-01-07 Dow Chemical Co
US4108928A (en) 1976-03-02 1978-08-22 Hanson Industries Inc. Method of producing a viscous flowable pressure-compensating fitting composition from hollow thermoplastic microblends with the use of high frequency heating and dispensing the composition into a sealable, flexible, protective enclosure means
US4173608A (en) * 1976-10-22 1979-11-06 Isobox-Barbier Process and apparatus for the manufacture of expanded plastics materials
FR2450685A1 (en) * 1979-03-09 1980-10-03 Japan Styrene Paper Corp PROCESS FOR PRODUCING POLYSTYRENE FOAM PANELS
EP0373441A1 (en) 1988-12-16 1990-06-20 BASF Aktiengesellschaft Process for preparing styrenic foam particles
US4990539A (en) * 1988-12-16 1991-02-05 Basf Aktiengesellschaft Preparation of styrene polymer foam particles
AU627254B2 (en) * 1988-12-16 1992-08-20 Basf Aktiengesellschaft Preparation of styrene polymer foam particles

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