JPS56135501A - Production of polymer - Google Patents

Production of polymer

Info

Publication number
JPS56135501A
JPS56135501A JP3741080A JP3741080A JPS56135501A JP S56135501 A JPS56135501 A JP S56135501A JP 3741080 A JP3741080 A JP 3741080A JP 3741080 A JP3741080 A JP 3741080A JP S56135501 A JPS56135501 A JP S56135501A
Authority
JP
Japan
Prior art keywords
vinyl monomer
soluble
water
meth
reversed
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
JP3741080A
Other languages
Japanese (ja)
Other versions
JPH028602B2 (en
Inventor
Minoru Nomichi
Yasuhiko Kadoi
Ikaru Kanemura
Goro Kobayashi
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.)
Nippon Kayaku Co Ltd
Original Assignee
Nippon Kayaku 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 Kayaku Co Ltd filed Critical Nippon Kayaku Co Ltd
Priority to JP3741080A priority Critical patent/JPS56135501A/en
Publication of JPS56135501A publication Critical patent/JPS56135501A/en
Publication of JPH028602B2 publication Critical patent/JPH028602B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Polymerisation Methods In General (AREA)

Abstract

PURPOSE: To obtain a water-soluble pearl polymer with stability and a high dispersion ratio, by employing as a dispersant a copolymer containing a hydrophilic vinyl monomer and a hydrophobic vinyl monomer in a specified ratio, in subjecting a wter-soluble vinyl monomer to reversed-phase suspension polymerization.
CONSTITUTION: A copolymer is obtained by radical polymerization (e.g. by emulsion polymerization) of (A) 0.1W10wt% hydrophobic vinyl monomer such as (meth)acrylic acid with (B) 90W99.9wt% hydrophilic vinyl monomer which is well soluble in an organic solvent for reversed-phase suspension polymerization, such as a C1W12 alkyl (meth)acrylate. An aqueous solution containing (i) water-soluble vinyl monomer such as an alkali metal (meth)acrylate and (ii) a polymerization initiator is added to and dispersed with agitation in an organic solvent which is soluble in neither water nor component (i) and contains 0.001W1wt% dissolved copolymer above-produced. The resulting reaction system, after purging with N2, is subjected to reversed-phase suspension polymerization to produce a water-soluble polymer.
EFFECT: A small amount of the dispersant can give a satisfactory effect. No scale forms on the wall or the like areas of a reaction vessel.
COPYRIGHT: (C)1981,JPO&Japio
JP3741080A 1980-03-26 1980-03-26 Production of polymer Granted JPS56135501A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3741080A JPS56135501A (en) 1980-03-26 1980-03-26 Production of polymer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3741080A JPS56135501A (en) 1980-03-26 1980-03-26 Production of polymer

Publications (2)

Publication Number Publication Date
JPS56135501A true JPS56135501A (en) 1981-10-23
JPH028602B2 JPH028602B2 (en) 1990-02-26

Family

ID=12496744

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3741080A Granted JPS56135501A (en) 1980-03-26 1980-03-26 Production of polymer

Country Status (1)

Country Link
JP (1) JPS56135501A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4506062A (en) * 1982-08-09 1985-03-19 Allied Colloids Limited Inverse suspension polymerization process
JPS6140309A (en) * 1984-08-01 1986-02-26 Arakawa Chem Ind Co Ltd Production of resin having high water absorption property
JPS6153308A (en) * 1984-08-23 1986-03-17 Arakawa Chem Ind Co Ltd Production of resin having high water absorption property
JPS6173704A (en) * 1984-09-19 1986-04-15 Arakawa Chem Ind Co Ltd Production of highly water-absorptive resin
WO1986005792A1 (en) * 1985-04-05 1986-10-09 Kao Corporation Dispersant for reversed phase suspension polymerization
JPH01264803A (en) * 1988-04-16 1989-10-23 Mitsui Constr Co Ltd Manufacture of particle-like ice and dried state inclusion water for manufacturing of concrete/mortar, manufacture of concrete/mortar using those fine particle-like ice and dried state inclusion water and concrete/mortar product manufactured through the same manufacturing process of concrete/mortar
US6034183A (en) * 1997-06-09 2000-03-07 Arakawa Chemical Industries, Ltd. Polymer having quaternary ammonium groups and process for the production thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5454186A (en) * 1977-10-07 1979-04-28 Nippon Kayaku Co Ltd Preparation of water-soluble polymer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5454186A (en) * 1977-10-07 1979-04-28 Nippon Kayaku Co Ltd Preparation of water-soluble polymer

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4506062A (en) * 1982-08-09 1985-03-19 Allied Colloids Limited Inverse suspension polymerization process
JPS6140309A (en) * 1984-08-01 1986-02-26 Arakawa Chem Ind Co Ltd Production of resin having high water absorption property
JPS6153308A (en) * 1984-08-23 1986-03-17 Arakawa Chem Ind Co Ltd Production of resin having high water absorption property
JPS6173704A (en) * 1984-09-19 1986-04-15 Arakawa Chem Ind Co Ltd Production of highly water-absorptive resin
WO1986005792A1 (en) * 1985-04-05 1986-10-09 Kao Corporation Dispersant for reversed phase suspension polymerization
JPH01264803A (en) * 1988-04-16 1989-10-23 Mitsui Constr Co Ltd Manufacture of particle-like ice and dried state inclusion water for manufacturing of concrete/mortar, manufacture of concrete/mortar using those fine particle-like ice and dried state inclusion water and concrete/mortar product manufactured through the same manufacturing process of concrete/mortar
JPH0523564B2 (en) * 1988-04-16 1993-04-05 Mitsui Kensetsu Kk
US6034183A (en) * 1997-06-09 2000-03-07 Arakawa Chemical Industries, Ltd. Polymer having quaternary ammonium groups and process for the production thereof

Also Published As

Publication number Publication date
JPH028602B2 (en) 1990-02-26

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