FR2034364A1 - Prodn of expandable polystyrene beads of narrow size - Google Patents

Prodn of expandable polystyrene beads of narrow size

Info

Publication number
FR2034364A1
FR2034364A1 FR6908134A FR6908134A FR2034364A1 FR 2034364 A1 FR2034364 A1 FR 2034364A1 FR 6908134 A FR6908134 A FR 6908134A FR 6908134 A FR6908134 A FR 6908134A FR 2034364 A1 FR2034364 A1 FR 2034364A1
Authority
FR
France
Prior art keywords
polystyrene beads
expandable polystyrene
parts
prodn
monomer
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
FR6908134A
Other languages
French (fr)
Other versions
FR2034364B1 (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.)
KAUCUK KRALUPY
Original Assignee
KAUCUK KRALUPY
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 BE728872D priority Critical patent/BE728872A/xx
Priority to NL6904074A priority patent/NL6904074A/xx
Application filed by KAUCUK KRALUPY filed Critical KAUCUK KRALUPY
Priority to FR6908134A priority patent/FR2034364A1/en
Priority to DE19691916387 priority patent/DE1916387A1/en
Publication of FR2034364A1 publication Critical patent/FR2034364A1/en
Application granted granted Critical
Publication of FR2034364B1 publication Critical patent/FR2034364B1/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
    • C08J9/16—Making expandable particles
    • C08J9/20—Making expandable particles by suspension polymerisation in the presence of the blowing agent

Landscapes

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

Abstract

Expandable polystyrene beads are prepared by (1) carrying out a polymerisation reaction on a system containing 100 parts styrene, 70-400 parts water and a catalyst, using a stirring speed sufficient to form a suspension of the monomer and polymer, (2) stirring until 30-70 parts of the monomer have polymerised and the dispersed phase has a viscosity coefficient not exceeding 70 poises at 40 deg.C, (3) adding a stabiliser to the suspension to maintain the suspension until at least 99 parts of monomer have polymerised, and (4) adding a foaming agent.
FR6908134A 1969-03-20 1969-03-20 Prodn of expandable polystyrene beads of narrow size Granted FR2034364A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BE728872D BE728872A (en) 1969-03-20 1969-02-24
NL6904074A NL6904074A (en) 1969-03-20 1969-03-17
FR6908134A FR2034364A1 (en) 1969-03-20 1969-03-20 Prodn of expandable polystyrene beads of narrow size
DE19691916387 DE1916387A1 (en) 1969-03-20 1969-03-29 Process for the production of expandable polystyrene by suspension polymerization

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6908134A FR2034364A1 (en) 1969-03-20 1969-03-20 Prodn of expandable polystyrene beads of narrow size

Publications (2)

Publication Number Publication Date
FR2034364A1 true FR2034364A1 (en) 1970-12-11
FR2034364B1 FR2034364B1 (en) 1973-08-10

Family

ID=9030985

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6908134A Granted FR2034364A1 (en) 1969-03-20 1969-03-20 Prodn of expandable polystyrene beads of narrow size

Country Status (4)

Country Link
BE (1) BE728872A (en)
DE (1) DE1916387A1 (en)
FR (1) FR2034364A1 (en)
NL (1) NL6904074A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2516481A1 (en) * 1975-04-15 1976-11-04 Westdeutsche Elektrogeraete Staircase light switch with pneumatic dampening - has polymer baseplate with functional groups holders coacting with group counterpieces
US4367320A (en) * 1980-12-31 1983-01-04 Mobil Oil Corporation Process for suspension polymerization of styrenic monomers
DE3202159A1 (en) * 1981-07-30 1983-02-17 Chemische Werke Hüls AG, 4370 Marl METHOD FOR PRODUCING FINE-PART, EXPANDABLE STYRENE POLYMERISATES WITH IMPROVED PROPERTIES
DE3823976A1 (en) * 1988-07-15 1990-01-18 Asea Brown Boveri DELAY DEVICE

Also Published As

Publication number Publication date
DE1916387A1 (en) 1970-10-01
FR2034364B1 (en) 1973-08-10
BE728872A (en) 1969-08-01
NL6904074A (en) 1970-09-21

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Legal Events

Date Code Title Description
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