GB927872A - Flame-retardant cellular polymers of vinyl-aromatic compounds - Google Patents

Flame-retardant cellular polymers of vinyl-aromatic compounds

Info

Publication number
GB927872A
GB927872A GB1738860A GB1738860A GB927872A GB 927872 A GB927872 A GB 927872A GB 1738860 A GB1738860 A GB 1738860A GB 1738860 A GB1738860 A GB 1738860A GB 927872 A GB927872 A GB 927872A
Authority
GB
United Kingdom
Prior art keywords
weight
polymer
chlorinated
vinyl
flame
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
GB1738860A
Inventor
George Alexander Pogany
Peter William Croft
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.)
Shell Research Ltd
Original Assignee
Shell Research 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
Priority to BE603822D priority Critical patent/BE603822A/xx
Application filed by Shell Research Ltd filed Critical Shell Research Ltd
Priority to GB1738860A priority patent/GB927872A/en
Priority to FR861773A priority patent/FR1302435A/en
Publication of GB927872A publication Critical patent/GB927872A/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
    • C08J9/224—Surface treatment
    • 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
    • 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
    • C08K5/49—Phosphorus-containing compounds
    • C08K5/51—Phosphorus bound to oxygen
    • C08K5/52—Phosphorus bound to oxygen only
    • C08K5/521—Esters of phosphoric acids, e.g. of H3PO4
    • 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

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)
  • Adhesives Or Adhesive Processes (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

A polymer of a vinyl-aromatic compound in particulate form made expandable by internally incorporating a volatile expanding agent is rendered flame-retardant by internally incorporating 0,5-3% by weight of an organic phosphate and externally treating and coating, e.g. by simple mixing, with 5-20% by weight of a highly chlorinated non-volatile hydrocarbon, the total quantities of flame-retardant additives being not less than 8% by weight, the percentages being based on the weight of the polymer. In addition the polymer particles may be treated and coated with up to 10% of antimony oxide applied in admixture with the chlorinated hydrocarbon. The polymer particles may be pre-expanded. An adhesive, e.g. low molecular-weight styrene polymer or water soluble or water-expandable adhesives as described in Specification 874,144 or finely divided silica gel or talc, may be included in the mixture to ensure that the particles become coated with the chlorinated hydrocarbons.ALSO:A polymer of vinyl-aromatic compound in particulate form made expandable by internally incorporating a volatile expanding agent is rendered flame-retardant by internally incorporating 0,5-3% by weight of an organic phosphate and externally treating with 5-20% by weight of a highly-chlorinated non-volatile hydrocarbon, the total quantities of flame-retardant additives being not less than 8% by weight, the percentages being based on the weight of the polymer. In addition the polymer particles may be treated with up to 10% of antimony oxide. The polymer particles may be pre-expanded. Specified are polymers of styrene, a -methyl styrene, vinyl toluene and p-chlorostyrene, copolymers of t these monomers, and copolymers of these monomers with other ethylenically unsaturated monomers, e.g. acrylonitrile, methyl methacrylate, vinyl acetate, butadiene and isoprene organic phosphates triphenyl, tritolyl or trixenyl orthophosphate and tris-(2,3-dibromophenyl) orthophosphate and chlorinated hydrocarbons chlorinated paraffin waxes and chlorinated naphthalenes. Specification 874,144 is referred to.ALSO:A polymer of a vinyl-aromatic compound in particulate form made expandable by internally incorporating a volatile expanding agent is rendered flame-retardant by internally incorporating 0,5-3% by weight of an organic phosphate and externary treating with 5-20% by weight of a highly-chlorinated non-volatile hydrocarbon, the total quantities of flame-retardant additives being not less than 8% by weight, the percentages being based on the weight of the polymer. In addition the polymer particles may be treated with up to 10% of antimony oxide. The polymer particles may be pre-expanded. Specified are polymers of styrene, -methyl styrene, vinyl toluene and p-chlorostyrene, copolymers of these monomers, and copolymers of these monomers with other ethylerically unsaturated monomers, e.g. acrylonitrile, methyl methacrylate, vinyl acetate, butadiene and isoprene organic phosphates triphenyl, tritolyl or trixenyl orthophosphate and tris-(2, 3-dibromopropyl) orthophosphate expanding agents butanes, pentanes, dichlorodifluoromethane and carbon dioxide and chlorinated hydrocarbons chlorinated paraffin waxes and chlorinated naphthalenes. An adhesive, e.g. low molecular-weight styrene polymer or water soluble or water expandable adhesives as described in Specification 874,144 or finely divided silica gel or talc, may be used to ensure that the particles become coated with the chlorinated hydrocarbons.
GB1738860A 1960-05-17 1960-05-17 Flame-retardant cellular polymers of vinyl-aromatic compounds Expired GB927872A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE603822D BE603822A (en) 1960-05-17
GB1738860A GB927872A (en) 1960-05-17 1960-05-17 Flame-retardant cellular polymers of vinyl-aromatic compounds
FR861773A FR1302435A (en) 1960-05-17 1961-05-15 Flame Retardant Cell Polymers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1738860A GB927872A (en) 1960-05-17 1960-05-17 Flame-retardant cellular polymers of vinyl-aromatic compounds

Publications (1)

Publication Number Publication Date
GB927872A true GB927872A (en) 1963-06-06

Family

ID=10094329

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1738860A Expired GB927872A (en) 1960-05-17 1960-05-17 Flame-retardant cellular polymers of vinyl-aromatic compounds

Country Status (1)

Country Link
GB (1) GB927872A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0004050A1 (en) * 1978-03-08 1979-09-19 BASF Aktiengesellschaft Flame-protected expandable styrene polymers useful in foam preparation
WO2006082233A1 (en) * 2005-02-04 2006-08-10 Basf Aktiengesellschaft Flame-protected expandable styrene polymer (eps) granules with a flame-protection synergist in the coating

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0004050A1 (en) * 1978-03-08 1979-09-19 BASF Aktiengesellschaft Flame-protected expandable styrene polymers useful in foam preparation
WO2006082233A1 (en) * 2005-02-04 2006-08-10 Basf Aktiengesellschaft Flame-protected expandable styrene polymer (eps) granules with a flame-protection synergist in the coating

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