JPS5755907A - Production of styrene polymer particle - Google Patents

Production of styrene polymer particle

Info

Publication number
JPS5755907A
JPS5755907A JP13077680A JP13077680A JPS5755907A JP S5755907 A JPS5755907 A JP S5755907A JP 13077680 A JP13077680 A JP 13077680A JP 13077680 A JP13077680 A JP 13077680A JP S5755907 A JPS5755907 A JP S5755907A
Authority
JP
Japan
Prior art keywords
suspension
styrene
polymer
bulk
reaction system
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
JP13077680A
Other languages
Japanese (ja)
Other versions
JPH0122841B2 (en
Inventor
Hiroshi Matsui
Mitsuo Furuichi
Yoshinari Ito
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.)
YUKA BAADEITSUSHIE KK
Mitsubishi Chemical BASF Co Ltd
Original Assignee
YUKA BAADEITSUSHIE KK
Mitsubishi Chemical BASF 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 YUKA BAADEITSUSHIE KK, Mitsubishi Chemical BASF Co Ltd filed Critical YUKA BAADEITSUSHIE KK
Priority to JP13077680A priority Critical patent/JPS5755907A/en
Publication of JPS5755907A publication Critical patent/JPS5755907A/en
Publication of JPH0122841B2 publication Critical patent/JPH0122841B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To obtain titled sharp-MW distribution polymer particles suitable as particles for foamable polymer beads, by polymerizing styrene by a combination of bulk polymerization and suspension polymerization and at the same time feeding styrene in portions to the reaction system.
CONSTITUTION: One hundred (100) pts.wt. polymerizable ethylenically unsaturated monomer based on styrene is bulk-polymerized in the presence of an initiator, e.g., benzoyl peroxide, until the viscosity of the reaction system at 20°C becomes 100W 10,000cP. Next, the polymer particles of the purpose are obtained by feeding the bulk-polymerized polymer into water containing a suspension stabilizer, e.g., polyvinyl alcohol, heating the suspension to initiate suspension polymerization of the unreacted monomer, feeding 200W900pts.wt. fresh ethylenically unsaturated monomer based on styrene to the suspension reaction system at a point when the conversion of monomer into polymer reaches at least 40wt% and completing the suspension polymerization.
COPYRIGHT: (C)1982,JPO&Japio
JP13077680A 1980-09-22 1980-09-22 Production of styrene polymer particle Granted JPS5755907A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13077680A JPS5755907A (en) 1980-09-22 1980-09-22 Production of styrene polymer particle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13077680A JPS5755907A (en) 1980-09-22 1980-09-22 Production of styrene polymer particle

Publications (2)

Publication Number Publication Date
JPS5755907A true JPS5755907A (en) 1982-04-03
JPH0122841B2 JPH0122841B2 (en) 1989-04-28

Family

ID=15042393

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13077680A Granted JPS5755907A (en) 1980-09-22 1980-09-22 Production of styrene polymer particle

Country Status (1)

Country Link
JP (1) JPS5755907A (en)

Also Published As

Publication number Publication date
JPH0122841B2 (en) 1989-04-28

Similar Documents

Publication Publication Date Title
JPS5655414A (en) Polymer particle
CA2037292A1 (en) Preparation of finely divided, water-soluble polymers
ES467934A1 (en) Epoxy resins processes for making and using same and substrates coated therewith
ES8204743A1 (en) Process for the polymerization of ethylenically unsaturated monomers
JPS5425990A (en) Dispersion stabilizer for suspension polymerization of vinyl compound
JPS5710610A (en) Preparation of styrene resin particle
JPS5755907A (en) Production of styrene polymer particle
JPS5712017A (en) Unsaturated polyester resin composition
ES471638A1 (en) Process for preparing graft copolymers by emulsion suspension graft polymerisation.
JPS5566907A (en) Preparation of vinyl chloride based polymer
ES8202036A1 (en) Process for the preparation of dispersions of ethylene-vinylester polymers.
ES8303454A1 (en) A method for the suspension polymerization of styrenic monomers.
JPS54112985A (en) Suspension polymerization of vinyl compound
JPS5767606A (en) Preparation of grain of styrenic polymer
JPS5523144A (en) Vinyl chloride resin composition
JPS56112918A (en) Production of aromatic vinyl copolymer
JPS57212211A (en) Preparation of vinyl chloride paste resin
JPS5751710A (en) Production of impact-resistant thermoplastic resin
JPS5543151A (en) Rapidly curable resin composition
JPS57133105A (en) Suspension polymerization of vinyl chloride
ES8203394A1 (en) Process for producing spherical and porous vinyl resin particles.
JPS5560504A (en) Preparation of vinyl chloride resin for paste
JPS56103231A (en) Foamable thermoplastic resin particle
JPS5719067A (en) Surface treatment method for aluminum product
JPS57160941A (en) Treating agent for glass fiber