JPS5454189A - Continuous preparation of methyl methacrylate syrup - Google Patents
Continuous preparation of methyl methacrylate syrupInfo
- Publication number
- JPS5454189A JPS5454189A JP12068477A JP12068477A JPS5454189A JP S5454189 A JPS5454189 A JP S5454189A JP 12068477 A JP12068477 A JP 12068477A JP 12068477 A JP12068477 A JP 12068477A JP S5454189 A JPS5454189 A JP S5454189A
- Authority
- JP
- Japan
- Prior art keywords
- zone
- reactors
- methyl methacrylate
- fed
- initiator
- 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.)
- Granted
Links
Landscapes
- Polymerisation Methods In General (AREA)
Abstract
PURPOSE: To prepare the title syrup with a high polymer content and a suitable viscosity for good workability, by polymerizing methyl methacrylate type monomers in the presence of a radical polymerization initiator under specific conditions in order.
CONSTITUTION: The polymerization equipment comprises the primary primary reaction zome (I) consistinf of two or more continuous agitation tank reactors connected in series and the secondary reaction zone (II) consisting of a tubular reactor connected to the zone (I) in series , all the reactors being of the complete mixing type. Methyl methacrylate type monomers are continuously fed to the first reactor of the zone (I), and a polymerization initiator having a temperature to give a half life ≤5 sec of 180°C or below is fed to the two or more reactors including the first reactor of the zone (I), and polymerized so that the residual initiator concentration in the reactors, to which the initiator is fed, may be 1/2W1/1000 of the feed concentration. Most of the whole polymer to be contained in the final syrup is formed in the zone (I) . The remaining polymer is then formed in the zone (II) to give the desired surup having a polydispersity ≤3 of the polymerization degree distribution continuously
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12068477A JPS5921326B2 (en) | 1977-10-06 | 1977-10-06 | Continuous manufacturing method for methyl methacrylate syrup |
DE19782843759 DE2843759A1 (en) | 1977-10-06 | 1978-10-06 | METHOD FOR THE CONTINUOUS PRODUCTION OF A PREPOLYMER SYRUP AND THE USE THEREOF |
CA312,893A CA1107752A (en) | 1977-10-06 | 1978-10-06 | Process for continuous production of prepolymer syrups |
AU40503/78A AU520196B2 (en) | 1977-10-06 | 1978-10-06 | Continuous production of prepolymer syrups |
NLAANVRAGE7810090,A NL187487C (en) | 1977-10-06 | 1978-10-06 | PROCESS FOR CONTINUOUS PRODUCTION OF A PRE-POLYMER SYRUP. |
GB7839660A GB2005282B (en) | 1977-10-06 | 1978-10-06 | Process for continuous production of prepolymer syrups |
IT69324/78A IT1160698B (en) | 1977-10-06 | 1978-10-06 | PROCEDURE FOR THE CONTINUOUS PRODUCTION OF METHYL METHACRYLATE PREPOLYMER SYRUP |
FR7828678A FR2405269A1 (en) | 1977-10-06 | 1978-10-06 | PROCESS FOR THE CONTINUOUS PRODUCTION OF SYRUP OF METHYL METHACRYLATE PREPOLYMERS AND NEW PRODUCTS THUS OBTAINED |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12068477A JPS5921326B2 (en) | 1977-10-06 | 1977-10-06 | Continuous manufacturing method for methyl methacrylate syrup |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5454189A true JPS5454189A (en) | 1979-04-28 |
JPS5921326B2 JPS5921326B2 (en) | 1984-05-19 |
Family
ID=14792381
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12068477A Expired JPS5921326B2 (en) | 1977-10-06 | 1977-10-06 | Continuous manufacturing method for methyl methacrylate syrup |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5921326B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59210911A (en) * | 1983-05-17 | 1984-11-29 | Sumitomo Chem Co Ltd | Continuous production of methyl methacrylate syrup |
JPS59213710A (en) * | 1983-05-17 | 1984-12-03 | Sumitomo Chem Co Ltd | Continuous cooling of methyl methacrylate syrup |
-
1977
- 1977-10-06 JP JP12068477A patent/JPS5921326B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59210911A (en) * | 1983-05-17 | 1984-11-29 | Sumitomo Chem Co Ltd | Continuous production of methyl methacrylate syrup |
JPS59213710A (en) * | 1983-05-17 | 1984-12-03 | Sumitomo Chem Co Ltd | Continuous cooling of methyl methacrylate syrup |
JPH0149295B2 (en) * | 1983-05-17 | 1989-10-24 | Sumitomo Chemical Co |
Also Published As
Publication number | Publication date |
---|---|
JPS5921326B2 (en) | 1984-05-19 |
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