GB1106143A - Expandable thermoplastic polymeric particles - Google Patents

Expandable thermoplastic polymeric particles

Info

Publication number
GB1106143A
GB1106143A GB896564A GB896564A GB1106143A GB 1106143 A GB1106143 A GB 1106143A GB 896564 A GB896564 A GB 896564A GB 896564 A GB896564 A GB 896564A GB 1106143 A GB1106143 A GB 1106143A
Authority
GB
United Kingdom
Prior art keywords
particles
water
polymerization
volatile
tert
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
GB896564A
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
Application filed by Individual filed Critical Individual
Priority to GB896564A priority Critical patent/GB1106143A/en
Priority to IL2306865A priority patent/IL23068A/en
Priority to DE1965W0043433 priority patent/DE1719318A1/en
Priority to ES0310012A priority patent/ES310012A1/en
Priority to DE1965W0038657 priority patent/DE1569552A1/en
Priority to AT184465A priority patent/AT289404B/en
Priority to FI52265A priority patent/FI46170C/en
Priority to FR7719A priority patent/FR1438321A/en
Priority to NL6502671A priority patent/NL150137B/en
Priority to CH1179765A priority patent/CH471171A/en
Publication of GB1106143A publication Critical patent/GB1106143A/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
    • C08J9/16—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)

Abstract

Thermoplastic polymeric (e.g. polystyrene) particles (e.g beads) containing uniformly distributed throughout them as an expanding agent, water droplets averaging 5-40m dia., may be prepared by incorporating water as a fine dispersion into the monomer or monomers to be polymerized, and subsequently effecting a suitably catalysed suspension polymerization of the resultant water-in-monomer emulsion in an aqueous medium. The suspension may contain emulsifiers and stabilizers, e.g. ester of an aminated fatty acid mannitol dioleate, methanol, N-vinyl pyrrolidone/methyl acrylate copolymer, polyvinyl alcohol, CMC, water soluble starch, BaSO4 calcium silicate and also foamed polystyrene, or a graft polymer of styrene and ethylene oxides. The polymerization may be catalysed by benzoyl peroxide, tert-butyl perbenzoate, di-tert-butyl peroxide, a -a 1-azobis-isobutyronitrile and/or dicumyl peroxide. Fire retarders e.g. tris-(dibromopropyl)-phosphate dyes and pigments are optional additives. There may additionally be present in the particles a gaseous, volatile or gas-forming compound which is insoluble in water, e.g. pentane or air. Petroleum ether of b.p. 30-70 DEG C. may be added during the polymerization as an anti-coagulant; the volatile compound specified above may also be added at this stage. The particles may be foamed by; (a) heating in a perforated closed mould; (b) extruding at a temperature above the softening-expanding temperature of the particles. They may also be partially expanded e.g. by steam treatment, before finally foaming as above. The particles may be stored, especially if they contain a volatile liquid, for a time sufficient to allow part of this liquid and for the water to evaporate and be replaced by air. The expanded products have a low density, e.g. of the order of 10-15 Kg/M3.
GB896564A 1964-03-03 1964-03-03 Expandable thermoplastic polymeric particles Expired GB1106143A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
GB896564A GB1106143A (en) 1964-03-03 1964-03-03 Expandable thermoplastic polymeric particles
IL2306865A IL23068A (en) 1964-03-03 1965-02-26 Thermoplastic polymer particles
DE1965W0043433 DE1719318A1 (en) 1964-03-03 1965-03-02 Process for the manufacture of expanded or foamed thermoplastic polymeric material
ES0310012A ES310012A1 (en) 1964-03-03 1965-03-02 Expandable thermoplastic polymeric particles
DE1965W0038657 DE1569552A1 (en) 1964-03-03 1965-03-02 Thermoplastic polymer particles that can be expanded by heat
AT184465A AT289404B (en) 1964-03-03 1965-03-03 Process for the preparation of heat foamable thermoplastic polymer particles
FI52265A FI46170C (en) 1964-03-03 1965-03-03 Method for making free-flowing, expandable polystyrene parts.
FR7719A FR1438321A (en) 1964-03-03 1965-03-03 Improvements in the production of polymeric foamed materials, for example polystyrene foam
NL6502671A NL150137B (en) 1964-03-03 1965-03-03 PROCESS FOR PREPARING HEAT-EXPANDABLE THERMOPLASTIC POLYMER GRANULES.
CH1179765A CH471171A (en) 1964-03-03 1965-08-23 Particles made of thermoplastic polymer which can be expanded by the action of heat, as well as processes for producing the particles and their use

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB896564A GB1106143A (en) 1964-03-03 1964-03-03 Expandable thermoplastic polymeric particles

Publications (1)

Publication Number Publication Date
GB1106143A true GB1106143A (en) 1968-03-13

Family

ID=9862723

Family Applications (1)

Application Number Title Priority Date Filing Date
GB896564A Expired GB1106143A (en) 1964-03-03 1964-03-03 Expandable thermoplastic polymeric particles

Country Status (9)

Country Link
AT (1) AT289404B (en)
CH (1) CH471171A (en)
DE (2) DE1719318A1 (en)
ES (1) ES310012A1 (en)
FI (1) FI46170C (en)
FR (1) FR1438321A (en)
GB (1) GB1106143A (en)
IL (1) IL23068A (en)
NL (1) NL150137B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998001501A1 (en) * 1996-07-04 1998-01-15 Shell Internationale Research Maatschappij B.V. Process for the preparation of polymer particles
AU709202B2 (en) * 1996-07-04 1999-08-26 Shell Internationale Research Maatschappij B.V. Process for the preparation of polymer particles
US6242540B1 (en) * 1996-07-04 2001-06-05 Nova Chemicals (International) S.A. Process for the preparation of polymer particles
US7456227B2 (en) 2006-09-08 2008-11-25 Nova Chemicals Inc. Polymer particles and related articles
WO2013045532A1 (en) * 2011-09-28 2013-04-04 Eidgenössische Technische Hochschule Zürich Expandable polymers

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4124207C2 (en) * 1991-07-20 1994-12-08 Huels Chemische Werke Ag Expandable styrene polymers and their use for the production of quick-release foam bodies
JP3186835B2 (en) * 1992-05-28 2001-07-11 松本油脂製薬株式会社 Thermally expandable microcapsule, method for producing and expanding method
DE19812857A1 (en) * 1998-03-24 1999-09-30 Basf Ag Process for the preparation of water-expandable styrene polymers

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998001501A1 (en) * 1996-07-04 1998-01-15 Shell Internationale Research Maatschappij B.V. Process for the preparation of polymer particles
AU709202B2 (en) * 1996-07-04 1999-08-26 Shell Internationale Research Maatschappij B.V. Process for the preparation of polymer particles
US6160027A (en) * 1996-07-04 2000-12-12 Nova Chemicals (International) S.A. Process for the preparation of polymer particles
US6242540B1 (en) * 1996-07-04 2001-06-05 Nova Chemicals (International) S.A. Process for the preparation of polymer particles
CN1104445C (en) * 1996-07-04 2003-04-02 国际壳牌研究有限公司 Process for preparation of polymer particles
US7456227B2 (en) 2006-09-08 2008-11-25 Nova Chemicals Inc. Polymer particles and related articles
WO2013045532A1 (en) * 2011-09-28 2013-04-04 Eidgenössische Technische Hochschule Zürich Expandable polymers

Also Published As

Publication number Publication date
DE1569552A1 (en) 1970-03-05
DE1719318A1 (en) 1971-06-03
CH471171A (en) 1969-04-15
FR1438321A (en) 1966-05-13
IL23068A (en) 1968-03-28
FI46170C (en) 1973-01-10
FI46170B (en) 1972-10-02
NL6502671A (en) 1965-09-06
NL150137B (en) 1976-07-15
AT289404B (en) 1971-04-26
ES310012A1 (en) 1965-10-01

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