FR2296512A1 - Flame retardant polystyrene foam mouldings prodn - expansion in aq medium contg potassium silicate - Google Patents

Flame retardant polystyrene foam mouldings prodn - expansion in aq medium contg potassium silicate

Info

Publication number
FR2296512A1
FR2296512A1 FR7500427A FR7500427A FR2296512A1 FR 2296512 A1 FR2296512 A1 FR 2296512A1 FR 7500427 A FR7500427 A FR 7500427A FR 7500427 A FR7500427 A FR 7500427A FR 2296512 A1 FR2296512 A1 FR 2296512A1
Authority
FR
France
Prior art keywords
expansion
prodn
degrees
temps
mouldings
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.)
Granted
Application number
FR7500427A
Other languages
French (fr)
Other versions
FR2296512B3 (en
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.)
Individual
Original Assignee
Individual
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 claimed from DE19742461817 external-priority patent/DE2461817C3/en
Application filed by Individual filed Critical Individual
Publication of FR2296512A1 publication Critical patent/FR2296512A1/en
Application granted granted Critical
Publication of FR2296512B3 publication Critical patent/FR2296512B3/fr
Granted 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
    • C08J9/236—Forming foamed products using binding agents
    • 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
    • C08J9/0066—Use of inorganic compounding ingredients
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/32—Phosphorus-containing compounds
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • 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
    • C08K5/17—Amines; Quaternary ammonium compounds
    • 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
    • C08J2325/02—Homopolymers or copolymers of hydrocarbons
    • C08J2325/04—Homopolymers or copolymers of styrene
    • C08J2325/06—Polystyrene

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)
  • Inorganic Chemistry (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

In the prodn. of polystyrene foam mouldings with improved flame retardancy by opt. multistage expansion of a polystyrene granulate or bead polymer contg. blowing agent using a hot aq. medium contg. alkali silicate, the aq. medium used for >=1 expansion stage contains a water-soluble alkali silicate or modified alkali silicate with min. 20 wt.% SiO2, min. 7wt.% K2O, 0-5wt.% Na2O and a viscosity of 35-150 cP at 20 degrees C and opt. hardener and/or filler. Used as flame-retardant or self-extinguishing insulants, e.g., in building. The process is relatively simple. The use of silicate solns. with a relatively high K content increases the flame retardancy to such an extent that the foam does not burn even at temps. above 800 degrees C. The mouldings can withstand temps. of min. 400 degrees C. Flames or higher temps. cause carbonisation, without structural change, but no burning with a free flame.
FR7500427A 1974-12-30 1975-01-08 Flame retardant polystyrene foam mouldings prodn - expansion in aq medium contg potassium silicate Granted FR2296512A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742461817 DE2461817C3 (en) 1974-12-30 Process for the production of polystyrene foam molded articles with improved flame resistance

Publications (2)

Publication Number Publication Date
FR2296512A1 true FR2296512A1 (en) 1976-07-30
FR2296512B3 FR2296512B3 (en) 1977-09-30

Family

ID=5934746

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7500427A Granted FR2296512A1 (en) 1974-12-30 1975-01-08 Flame retardant polystyrene foam mouldings prodn - expansion in aq medium contg potassium silicate

Country Status (2)

Country Link
JP (1) JPS5179175A (en)
FR (1) FR2296512A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0426372A1 (en) * 1989-10-25 1991-05-08 ARCO Chemical Technology, L.P. Controlling pyrolysis rate of plastic foam molding

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010536941A (en) * 2007-05-30 2010-12-02 ジャ−チョン キム Expandable polystyrene beads having excellent heat insulation and flame retardancy and method for producing the same
CN109415865B (en) 2016-04-27 2021-07-20 Lg电子株式会社 Clothes treating apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0426372A1 (en) * 1989-10-25 1991-05-08 ARCO Chemical Technology, L.P. Controlling pyrolysis rate of plastic foam molding

Also Published As

Publication number Publication date
JPS5179175A (en) 1976-07-09
DE2461817B2 (en) 1977-01-13
DE2461817A1 (en) 1976-07-01
FR2296512B3 (en) 1977-09-30

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Legal Events

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