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GB1005757A - Method of manufacturing expandable synthetic resins - Google Patents

Method of manufacturing expandable synthetic resins

Info

Publication number
GB1005757A
GB1005757A GB3659063A GB3659063A GB1005757A GB 1005757 A GB1005757 A GB 1005757A GB 3659063 A GB3659063 A GB 3659063A GB 3659063 A GB3659063 A GB 3659063A GB 1005757 A GB1005757 A GB 1005757A
Authority
GB
United Kingdom
Prior art keywords
monomer
weight
polymerization
expanded
nitrite
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
GB3659063A
Inventor
Itaru Hatano
Kazuya Senuma
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.)
Kanegafuchi Chemical Industry Co Ltd
Original Assignee
Kanegafuchi Chemical Industry Co 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 US250778A priority Critical patent/US3265642A/en
Priority to DE1963K0048741 priority patent/DE1190668B/en
Priority to FR946380A priority patent/FR1373232A/en
Application filed by Kanegafuchi Chemical Industry Co Ltd filed Critical Kanegafuchi Chemical Industry Co Ltd
Priority to GB3659063A priority patent/GB1005757A/en
Publication of GB1005757A publication Critical patent/GB1005757A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/16Making expandable particles
    • C08J9/20Making 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)
  • Polymerisation Methods In General (AREA)

Abstract

Expandable synthetic resins are manufactured by a process which includes the polymerization, preferably suspension polymerization, under pressure of an a -ethylenically unsaturated compound in the presence of a normally gaseous expanding agent and a nitrite. Suitable monomers are styrene, methylmethacrylate, alpha-methyl styrene and acrylonitrile and mixtures thereof. Examples of expanding agents are hydrocarbon gases such as butane, ethane, propane, methane, butene, isobutylene, propylene and ethylene; halogenated hydrocarbon gases such as methyl chloride, and inert gases such as nitrogen and carbon dioxide. Preferable quantities are from 3% to 15% by weight of the total quantity of monomer. Particularly desirable nitrites are those having polymerization inhibiting properties and which are water-soluble, e.g. sodium nitrite and potassium nitrite either singly or as a mixture in the range of from 0.0001% to 0.15% by weight of the total quantity of monomer. Any catalyst commonly used in suspension polymerization may be used in quantities of 1% or less by weight of the total monomer. Benzoyl peroxide and lauroyl peroxide are mentioned in the examples. The expandable beads may be directly expanded in a mould or they may be pre-expanded in boiling water and fully expanded in a mould.
GB3659063A 1962-01-23 1963-09-17 Method of manufacturing expandable synthetic resins Expired GB1005757A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US250778A US3265642A (en) 1962-01-23 1963-01-11 Method of manufacturing expandable synthetic resins
DE1963K0048741 DE1190668B (en) 1963-09-17 1963-01-19 Process for the production of foamable polymer beads
FR946380A FR1373232A (en) 1962-01-23 1963-09-03 Process for the production of expandable synthetic resins
GB3659063A GB1005757A (en) 1963-09-17 1963-09-17 Method of manufacturing expandable synthetic resins

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3659063A GB1005757A (en) 1963-09-17 1963-09-17 Method of manufacturing expandable synthetic resins

Publications (1)

Publication Number Publication Date
GB1005757A true GB1005757A (en) 1965-09-29

Family

ID=10389521

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3659063A Expired GB1005757A (en) 1962-01-23 1963-09-17 Method of manufacturing expandable synthetic resins

Country Status (2)

Country Link
DE (1) DE1190668B (en)
GB (1) GB1005757A (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1072809B (en) * 1960-01-07 Monsanto Chemical Company, St. Louis, Mo. (V. St. A.) Process for the production of polymerisation products in pearl or granular form

Also Published As

Publication number Publication date
DE1190668B (en) 1965-04-08

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