JPS57131211A - Production of polymer latex - Google Patents

Production of polymer latex

Info

Publication number
JPS57131211A
JPS57131211A JP1644081A JP1644081A JPS57131211A JP S57131211 A JPS57131211 A JP S57131211A JP 1644081 A JP1644081 A JP 1644081A JP 1644081 A JP1644081 A JP 1644081A JP S57131211 A JPS57131211 A JP S57131211A
Authority
JP
Japan
Prior art keywords
internal pressure
production
emulsion
polymerization
inert gas
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
Application number
JP1644081A
Other languages
Japanese (ja)
Inventor
Haruhiro Hirai
Katsutoshi Ikuma
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.)
JSR Corp
Nippon Synthetic Chemical Industry Co Ltd
Original Assignee
Nippon Synthetic Chemical Industry Co Ltd
Japan Synthetic Rubber 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 Nippon Synthetic Chemical Industry Co Ltd, Japan Synthetic Rubber Co Ltd filed Critical Nippon Synthetic Chemical Industry Co Ltd
Priority to JP1644081A priority Critical patent/JPS57131211A/en
Publication of JPS57131211A publication Critical patent/JPS57131211A/en
Pending legal-status Critical Current

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  • Polymerisation Methods In General (AREA)

Abstract

PURPOSE: To decrease the amount of residual unreacted monomers and thereby to improve the production efficiency, by heightening the internal pressure of the reaction system by introducting an inert gas at the end of the polymerization, in producing a latex by emulsion-polymerizing a conjugated diolefin.
CONSTITUTION: A monomer mixture containing at least 20wt% of a conjugated diolefin (other copolymerizable monomers being styrenes, acrylate esters, acrylonitrile or the like) is emulsion-polymerized in batch. At a point when the conversion into polymer reaches about 80% (generally, the internal pressure of a reaction vessel has dropped to below about 1kg/cm2.G), an inert gas (e.g., nitrogen) is introduced into the reaction vessel to increase the internal pressure of the vessel to above 1.5kg/cm2.G (preferably, 2W7kg/cm2.G) and then the polymerization is continued. The above process is especially effective, when applied to the production of polymer latexes, average particle size ≥about 0.15μ.
COPYRIGHT: (C)1982,JPO&Japio
JP1644081A 1981-02-06 1981-02-06 Production of polymer latex Pending JPS57131211A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1644081A JPS57131211A (en) 1981-02-06 1981-02-06 Production of polymer latex

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1644081A JPS57131211A (en) 1981-02-06 1981-02-06 Production of polymer latex

Publications (1)

Publication Number Publication Date
JPS57131211A true JPS57131211A (en) 1982-08-14

Family

ID=11916286

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1644081A Pending JPS57131211A (en) 1981-02-06 1981-02-06 Production of polymer latex

Country Status (1)

Country Link
JP (1) JPS57131211A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014088536A (en) * 2012-10-30 2014-05-15 Jintex Corporation Ltd Method for producing carboxylated nitrile butadiene rubber latex and product obtained thereby
JP2014095062A (en) * 2012-10-08 2014-05-22 Nippon Shokubai Co Ltd Styrene-based polymer solution

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014095062A (en) * 2012-10-08 2014-05-22 Nippon Shokubai Co Ltd Styrene-based polymer solution
JP2014088536A (en) * 2012-10-30 2014-05-15 Jintex Corporation Ltd Method for producing carboxylated nitrile butadiene rubber latex and product obtained thereby

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