JPS5453184A - Continuous polymerization - Google Patents

Continuous polymerization

Info

Publication number
JPS5453184A
JPS5453184A JP11981477A JP11981477A JPS5453184A JP S5453184 A JPS5453184 A JP S5453184A JP 11981477 A JP11981477 A JP 11981477A JP 11981477 A JP11981477 A JP 11981477A JP S5453184 A JPS5453184 A JP S5453184A
Authority
JP
Japan
Prior art keywords
give
residual monomer
syrup
polymerized
conditions
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.)
Pending
Application number
JP11981477A
Other languages
Japanese (ja)
Inventor
Yasuyuki Kato
Masahiko Moriya
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.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical 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 Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Priority to JP11981477A priority Critical patent/JPS5453184A/en
Publication of JPS5453184A publication Critical patent/JPS5453184A/en
Pending legal-status Critical Current

Links

Landscapes

  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Polymerization Catalysts (AREA)
  • Moulding By Coating Moulds (AREA)
  • Polymerisation Methods In General (AREA)

Abstract

PURPOSE: To obtain methacrylate resin plates polymerized in a short period, free from foaming, with a little amount of a residual monomer, capable of solvent adhesion, having improved solvent resistance, by continuous polymerization in the presence of a specific polymerization initiator under specified conditions.
CONSTITUTION: A) A syrup consisting mainly of methyl methacrylate having a conversion of 15W35 wt.% and a viscosity of 5W100 poises is obtained. B) A dialkyl preoxydicarbonate (4W10C alkyl), e.g. di-n-butyl peroxydicarbonate is added to the syrup to give a polymerizable liquid composition. The composition is continuously charged into a space, which is formed by two moving continuous bands whose both ends are sealed by gaskets, and polymerized under the conditions within the area surrounded by lines connecting the points A, B, C, D, and E in the figure. The resulting material is heat-treated at a temperature of 110W150°C to give a polymer plate.
EFFECT: A plate having a residual monomer content ≤1.5 wt.% and a high heat distortion temperature
COPYRIGHT: (C)1979,JPO&Japio
JP11981477A 1977-10-04 1977-10-04 Continuous polymerization Pending JPS5453184A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11981477A JPS5453184A (en) 1977-10-04 1977-10-04 Continuous polymerization

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11981477A JPS5453184A (en) 1977-10-04 1977-10-04 Continuous polymerization

Publications (1)

Publication Number Publication Date
JPS5453184A true JPS5453184A (en) 1979-04-26

Family

ID=14770885

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11981477A Pending JPS5453184A (en) 1977-10-04 1977-10-04 Continuous polymerization

Country Status (1)

Country Link
JP (1) JPS5453184A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57153008A (en) * 1981-03-19 1982-09-21 Asahi Chem Ind Co Ltd Methacrylic resin having excellent heat resistance
WO2005049666A1 (en) * 2003-10-22 2005-06-02 Röhm GmbH & Co. KG Production of colourless, transparent or opaque coloured plexiglas® blocks from a prepolymer that is devoid of residual initiators by thermal polymerisation

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51137789A (en) * 1975-05-26 1976-11-27 Kyowa Gas Chem Ind Co Ltd Process for manufacturing methyl methacr ylate resin cast plate

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51137789A (en) * 1975-05-26 1976-11-27 Kyowa Gas Chem Ind Co Ltd Process for manufacturing methyl methacr ylate resin cast plate

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57153008A (en) * 1981-03-19 1982-09-21 Asahi Chem Ind Co Ltd Methacrylic resin having excellent heat resistance
JPS631964B2 (en) * 1981-03-19 1988-01-14 Asahi Chemical Ind
WO2005049666A1 (en) * 2003-10-22 2005-06-02 Röhm GmbH & Co. KG Production of colourless, transparent or opaque coloured plexiglas® blocks from a prepolymer that is devoid of residual initiators by thermal polymerisation

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