JPS5455090A - Continuous preparation of methyl methacrylate resin sheet - Google Patents
Continuous preparation of methyl methacrylate resin sheetInfo
- Publication number
- JPS5455090A JPS5455090A JP12208077A JP12208077A JPS5455090A JP S5455090 A JPS5455090 A JP S5455090A JP 12208077 A JP12208077 A JP 12208077A JP 12208077 A JP12208077 A JP 12208077A JP S5455090 A JPS5455090 A JP S5455090A
- Authority
- JP
- Japan
- Prior art keywords
- polymerization
- methyl methacrylate
- fed
- polymer
- resin sheet
- 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)
- Polymerisation Methods In General (AREA)
Abstract
PURPOSE: To prepare a methyl methacrylate resin sheet having excellent mechanical properties without foaming during the polymerization and the molding, by carrying out the first stage of the polymerization in a continuous stirring reaction vessel, and sucessively in a pipe-type reactor, thereafter by continuously polymerizing between transferring layers adding a polymerization initiator.
CONSTITUTION: Methyl methacrylate or its mixture with monomers copolymerizable therewith (e.g. methyl acrylate, etc.), is fed into a continuous stirring reaction vessel together with a polymerization initiator (e.g. benzoyl peroxide, etc.). The polymer having a sharp polymerization degree distribution and its polydisperse degree of ≤3, is prepared by adjusting the temperature and the average retention time. Successively the polymer is fed into a pipe-type reactor and the concentration of the residual initiator is controlled to attain 1/2W1/1,000 of the initial concentration. The polymerization initiator is added to the syrup and the compound is fed into the space between the upper and lower continuously transferring bands to complete the polymerization. Consequently a sheet polymer is continuously obtained
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12208077A JPS5455090A (en) | 1977-10-11 | 1977-10-11 | Continuous preparation of methyl methacrylate resin sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12208077A JPS5455090A (en) | 1977-10-11 | 1977-10-11 | Continuous preparation of methyl methacrylate resin sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5455090A true JPS5455090A (en) | 1979-05-01 |
Family
ID=14827153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12208077A Pending JPS5455090A (en) | 1977-10-11 | 1977-10-11 | Continuous preparation of methyl methacrylate resin sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5455090A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4766812B2 (en) * | 1999-11-19 | 2011-09-07 | 株式会社日本触媒 | Method for producing porous crosslinked polymer material |
| JP2016186024A (en) * | 2015-03-27 | 2016-10-27 | 株式会社日本触媒 | Production method of alkali-soluble resin and photosensitive resin composition comprising alkali-soluble resin produced by the production method |
-
1977
- 1977-10-11 JP JP12208077A patent/JPS5455090A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4766812B2 (en) * | 1999-11-19 | 2011-09-07 | 株式会社日本触媒 | Method for producing porous crosslinked polymer material |
| JP2016186024A (en) * | 2015-03-27 | 2016-10-27 | 株式会社日本触媒 | Production method of alkali-soluble resin and photosensitive resin composition comprising alkali-soluble resin produced by the production method |
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