JPS5454189A - Continuous preparation of methyl methacrylate syrup - Google Patents

Continuous preparation of methyl methacrylate syrup

Info

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
Application number
JP12068477A
Other languages
Japanese (ja)
Other versions
JPS5921326B2 (en
Inventor
Masahiro Yuyama
Teizo Hanamura
Akira Sakuramoto
Masataka Yanase
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 JP12068477A priority Critical patent/JPS5921326B2/en
Priority to DE19782843759 priority patent/DE2843759A1/en
Priority to CA312,893A priority patent/CA1107752A/en
Priority to AU40503/78A priority patent/AU520196B2/en
Priority to NLAANVRAGE7810090,A priority patent/NL187487C/en
Priority to GB7839660A priority patent/GB2005282B/en
Priority to IT69324/78A priority patent/IT1160698B/en
Priority to FR7828678A priority patent/FR2405269A1/en
Publication of JPS5454189A publication Critical patent/JPS5454189A/en
Publication of JPS5921326B2 publication Critical patent/JPS5921326B2/en
Expired legal-status Critical Current

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  • 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
JP12068477A 1977-10-06 1977-10-06 Continuous manufacturing method for methyl methacrylate syrup Expired JPS5921326B2 (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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