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JPS5674130A - Production of fine spherular particle of water-soluble high polymer - Google Patents

Production of fine spherular particle of water-soluble high polymer

Info

Publication number
JPS5674130A
JPS5674130A JP15187979A JP15187979A JPS5674130A JP S5674130 A JPS5674130 A JP S5674130A JP 15187979 A JP15187979 A JP 15187979A JP 15187979 A JP15187979 A JP 15187979A JP S5674130 A JPS5674130 A JP S5674130A
Authority
JP
Japan
Prior art keywords
water
fine
particles
high polymer
methanol
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
JP15187979A
Other languages
Japanese (ja)
Inventor
Takeshi Hayade
Hisao Kojima
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.)
Nippi Inc
Original Assignee
Nippi Inc
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 Nippi Inc filed Critical Nippi Inc
Priority to JP15187979A priority Critical patent/JPS5674130A/en
Publication of JPS5674130A publication Critical patent/JPS5674130A/en
Pending legal-status Critical Current

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  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

PURPOSE: An aqueous solution of a water-soluble high polymer is emulsified in a specific organic solvent so as to form fine spherular particles and the emulsion is poured into methanol or the like to transfer the aqueous solution particles from the organic medium layer into the alcohol layer and to dehydrate the particles simultaneously, thus producing the titled fine particles.
CONSTITUTION: An aqueous solution of a high polymer that is soluble in water but insoluble in methanol or ethanol and is 2W50% in concentration such as gelatin solution is emulsified in an organic solvent that is inmiscible or hard miscible with water and inmiscible with methanol or ethanol such as β-phellaudrene so that the aqueous solution of the water-soluble high polymer is made into fine spherular particles of 0.2W30μ particle sizes. Then, the emulsion is poured into methanol or ethanol to transfer the fine particles into the methanol or ethanol layer and to dehydrate simultaneously, thus giving fine spherular particles of the water-soluble high polymer. When needed, the fine particles are filtered and dried to a powder or made water-insoluble by treating with a curing agent.
COPYRIGHT: (C)1981,JPO&Japio
JP15187979A 1979-11-22 1979-11-22 Production of fine spherular particle of water-soluble high polymer Pending JPS5674130A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15187979A JPS5674130A (en) 1979-11-22 1979-11-22 Production of fine spherular particle of water-soluble high polymer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15187979A JPS5674130A (en) 1979-11-22 1979-11-22 Production of fine spherular particle of water-soluble high polymer

Publications (1)

Publication Number Publication Date
JPS5674130A true JPS5674130A (en) 1981-06-19

Family

ID=15528194

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15187979A Pending JPS5674130A (en) 1979-11-22 1979-11-22 Production of fine spherular particle of water-soluble high polymer

Country Status (1)

Country Link
JP (1) JPS5674130A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61211342A (en) * 1985-03-15 1986-09-19 Asahi Chem Ind Co Ltd Production of ultrafine high-molecular material particle
JPS61263630A (en) * 1985-05-15 1986-11-21 Kyodo Kikaku Kk Production of agar bead
US4654048A (en) * 1983-12-29 1987-03-31 Commissariat A L'energie Atomique Process for the preparation of a powder suitable for fritting
JPH04318029A (en) * 1991-04-16 1992-11-09 Miyazaki Pref Gov Homogeneous uniform spherical fine particle of polysaccharides derived from seaweed and its production
WO2008062908A1 (en) * 2006-11-24 2008-05-29 Canon Kabushiki Kaisha Method for producing particles and particles
JP2008150596A (en) * 2006-11-24 2008-07-03 Canon Inc Production method of particle, and particle

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4654048A (en) * 1983-12-29 1987-03-31 Commissariat A L'energie Atomique Process for the preparation of a powder suitable for fritting
JPS61211342A (en) * 1985-03-15 1986-09-19 Asahi Chem Ind Co Ltd Production of ultrafine high-molecular material particle
JPS61263630A (en) * 1985-05-15 1986-11-21 Kyodo Kikaku Kk Production of agar bead
JPH0367536B2 (en) * 1985-05-15 1991-10-23 Yamagata Baiotetsuku Kk
JPH04318029A (en) * 1991-04-16 1992-11-09 Miyazaki Pref Gov Homogeneous uniform spherical fine particle of polysaccharides derived from seaweed and its production
WO2008062908A1 (en) * 2006-11-24 2008-05-29 Canon Kabushiki Kaisha Method for producing particles and particles
JP2008150596A (en) * 2006-11-24 2008-07-03 Canon Inc Production method of particle, and particle
US8293819B2 (en) 2006-11-24 2012-10-23 Canon Kabushiki Kaisha Method for producing particles and particles

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