GB1116509A - Process for producing transparent molding compositions - Google Patents

Process for producing transparent molding compositions

Info

Publication number
GB1116509A
GB1116509A GB5304165A GB5304165A GB1116509A GB 1116509 A GB1116509 A GB 1116509A GB 5304165 A GB5304165 A GB 5304165A GB 5304165 A GB5304165 A GB 5304165A GB 1116509 A GB1116509 A GB 1116509A
Authority
GB
United Kingdom
Prior art keywords
parts
sodium
water
emulsion
drier
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
GB5304165A
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.)
Mitsubishi Rayon Co Ltd
Original Assignee
Mitsubishi Rayon 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
Application filed by Mitsubishi Rayon Co Ltd filed Critical Mitsubishi Rayon Co Ltd
Publication of GB1116509A publication Critical patent/GB1116509A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10—Esters
    • C08F220/12—Esters of monohydric alcohols or phenols
    • C08F220/14—Methyl esters, e.g. methyl (meth)acrylate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F212/00—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
    • C08F212/02—Monomers containing only one unsaturated aliphatic radical
    • C08F212/04—Monomers containing only one unsaturated aliphatic radical containing one ring
    • C08F212/06—Hydrocarbons
    • C08F212/12—Monomers containing a branched unsaturated aliphatic radical or a ring substituted by an alkyl radical

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

A mixture of more than 55 parts by wt. of methyl methacrylate, 5-40 parts of a -methyl styrene and 1-10 parts of methyl, ethyl, propyl and/or n-butyl acrylate is polymerized in an aqueous emulsion at 50-140 DEG C. using as polymerization initiator 0.0001-0.1% by wt. (relative to the monomers) of sodium, potassium or ammonium persulphate and as emulsifier sodium (diamyl, dihexyl or dioctyl) sulphosuccinate, eliminating water under such conditions that the terpolymer is not heated at more than 20 DEG C. higher than the Vicat softening temperature thereof to produce a solid having a water content lower than 10% and washing the solid with methanol and/or ethanol. When 0.01-0.1% of persulphate is used, there is added to the emulsion, before the elimination of water, 0.01-0.1 parts by wt. (relative to the emulsion) of sodium or potassium sulphite, arsenite or phosphite. The polymerization may be carried out in the presence of lauryl mercaptan. The water elimination may be effected using a drier with a gas-exhaust or a spray-drier. The polymer may be used to form colourless transparent moulded articles.
GB5304165A 1964-12-24 1965-12-14 Process for producing transparent molding compositions Expired GB1116509A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7297464 1964-12-24

Publications (1)

Publication Number Publication Date
GB1116509A true GB1116509A (en) 1968-06-06

Family

ID=13504855

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5304165A Expired GB1116509A (en) 1964-12-24 1965-12-14 Process for producing transparent molding compositions

Country Status (3)

Country Link
DE (1) DE1595024A1 (en)
FR (1) FR1464978A (en)
GB (1) GB1116509A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4754008A (en) * 1986-04-16 1988-06-28 Rohm Gmbh Heat resistant molding compounds
WO2012016869A1 (en) 2010-08-02 2012-02-09 Wacker Chemie Ag Process for preparing vinyl acetate-ethylene copolymers by means of emulsion polymerization

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4754008A (en) * 1986-04-16 1988-06-28 Rohm Gmbh Heat resistant molding compounds
WO2012016869A1 (en) 2010-08-02 2012-02-09 Wacker Chemie Ag Process for preparing vinyl acetate-ethylene copolymers by means of emulsion polymerization

Also Published As

Publication number Publication date
DE1595024A1 (en) 1970-04-09
FR1464978A (en) 1967-01-06

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