JPS5453184A - Continuous polymerization - Google Patents
Continuous polymerizationInfo
- 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
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
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)
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)
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 |
-
1977
- 1977-10-04 JP JP11981477A patent/JPS5453184A/en active Pending
Patent Citations (1)
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)
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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