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WO1992013027A3 - Procede servant a produire des particules polymeres fines et des matieres particulaires encapsulees par du polymere - Google Patents

Procede servant a produire des particules polymeres fines et des matieres particulaires encapsulees par du polymere Download PDF

Info

Publication number
WO1992013027A3
WO1992013027A3 PCT/US1992/000495 US9200495W WO9213027A3 WO 1992013027 A3 WO1992013027 A3 WO 1992013027A3 US 9200495 W US9200495 W US 9200495W WO 9213027 A3 WO9213027 A3 WO 9213027A3
Authority
WO
WIPO (PCT)
Prior art keywords
polymer
solution
particles
encapsulated
particulate material
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.)
Ceased
Application number
PCT/US1992/000495
Other languages
English (en)
Other versions
WO1992013027A2 (fr
Inventor
Wei-Hsin Hou
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.)
Coulter Corp
Original Assignee
Coulter Corp
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
Priority claimed from US07/645,174 external-priority patent/US5270445A/en
Application filed by Coulter Corp filed Critical Coulter Corp
Priority to AU13356/92A priority Critical patent/AU661678B2/en
Priority to JP92505690A priority patent/JPH05505643A/ja
Publication of WO1992013027A2 publication Critical patent/WO1992013027A2/fr
Publication of WO1992013027A3 publication Critical patent/WO1992013027A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/20—Compounding polymers with additives, e.g. colouring
    • C08J3/205—Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase
    • C08J3/21—Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase the polymer being premixed with a liquid phase
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/12—Powdering or granulating
    • C08J3/14—Powdering or granulating by precipitation from solutions
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/0825—Developers with toner particles characterised by their structure; characterised by non-homogenuous distribution of components
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/093—Encapsulated toner particles
    • G03G9/09392—Preparation thereof
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/12—Developers with toner particles in liquid developer mixtures

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Polymers & Plastics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Details Of Measuring Devices (AREA)
  • Instrument Panels (AREA)
  • Indicating Measured Values (AREA)
  • Liquid Developers In Electrophotography (AREA)

Abstract

On produit des particules polymères fines et des particules encapsulées par du polymère en dissolvant un polymère dans un solvant sélectif, et en abaissant la température de la solution et/ou en y ajoutant un élément non dissolvant pour le polymère, afin de séparer le polymère de la solution par précipitation. Des matières particulaires peuvent être ajoutées lorsque la solution est formée de sorte que, lorsque le polymère se sépare de la solution par précipitation, le polymère enrobe les matières particulaires. Deux homopolymères sont ajoutés à la solution avec le solvant sélectif de sorte qu'un polymère se sépare tout d'abord de la solution par précipitation et y est en suspension, et que le second polymère se sépare ensuite de la solution restante par précipitation, encapsulant alors les particules composées du premier polymère et produisant des particules polymères à noyau et à enveloppe. Des pigments, des liposomes et d'autres matières particulaires peuvent être encapsulées par un polymère, les particules polymères et les particules encapsulées par du polymère présentant une morphologie et une grosseur uniformes.
PCT/US1992/000495 1991-01-24 1992-01-21 Procede servant a produire des particules polymeres fines et des matieres particulaires encapsulees par du polymere Ceased WO1992013027A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU13356/92A AU661678B2 (en) 1991-01-24 1992-01-21 Method of forming fine polymer particles and polymer-encapsulated particulates
JP92505690A JPH05505643A (ja) 1991-01-24 1992-01-21 微細な重合体粒子および重合体封入粒子の形成方法

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US645,174 1991-01-24
US07/645,174 US5270445A (en) 1991-01-24 1991-01-24 Method of forming fine polymer particles and polymer-encapsulated particulates
US07/822,472 US5264553A (en) 1991-01-24 1992-01-17 Method of forming uniform polymer spheres, composite particles and polymer encapsulated particles
US822,472 1992-01-17

Publications (2)

Publication Number Publication Date
WO1992013027A2 WO1992013027A2 (fr) 1992-08-06
WO1992013027A3 true WO1992013027A3 (fr) 1992-10-01

Family

ID=27094641

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1992/000495 Ceased WO1992013027A2 (fr) 1991-01-24 1992-01-21 Procede servant a produire des particules polymeres fines et des matieres particulaires encapsulees par du polymere

Country Status (6)

Country Link
US (1) US5264553A (fr)
EP (1) EP0522147A1 (fr)
JP (1) JPH05505643A (fr)
AU (1) AU661678B2 (fr)
CA (1) CA2078887A1 (fr)
WO (1) WO1992013027A2 (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL106571A0 (en) * 1993-08-02 1993-12-08 Indigo Nv Toner particles with modified chargeability
US5994417A (en) * 1996-06-04 1999-11-30 Auburn University Process for recovering polymers from commingled materials
DE19745417A1 (de) * 1997-10-15 1999-04-22 Buna Sow Leuna Olefinverb Gmbh Verfahren zum Ausfällen von gelösten Polymeren
TW476788B (en) 1998-04-08 2002-02-21 Kimberly Clark Co A cleanser and the making process thereof
TW200302243A (en) * 2002-01-31 2003-08-01 Solvay Process for manufacturing a mixture based on a plastic
GB0229696D0 (en) * 2002-12-20 2003-01-29 Amersham Biosciences Ab Separation medium
US20050113486A1 (en) * 2003-11-26 2005-05-26 Sandieson Kevin R. Molded articles having a granular or speckled appearance and process therefor
US7060408B2 (en) * 2003-12-30 2006-06-13 Samsung Electronics Company Liquid toner comprising encapsulated pigment, methods and uses
DE602007013727D1 (de) * 2006-02-06 2011-05-19 Rubbermaid Commercial Products Behälter mit entlüftungsöffnung
WO2008062908A1 (fr) * 2006-11-24 2008-05-29 Canon Kabushiki Kaisha Procédé destiné à produire des particules et particules
CN101230152B (zh) * 2007-01-28 2010-05-19 青岛科技大学 废聚苯乙烯微米级球形颗粒的制备方法
US7888410B2 (en) * 2007-04-24 2011-02-15 Eastman Kodak Company Method of making porous particles
US8940362B2 (en) 2007-10-11 2015-01-27 Eastman Kodak Company Method for manufacturing porous particles with non-porous shell
US8652637B2 (en) 2007-10-11 2014-02-18 Eastman Kodak Company Porous particles with non-porous shell
ES2640732T3 (es) * 2008-05-21 2017-11-06 Toray Industries, Inc. Método de producción de partícula fina de polímero
JP5689455B2 (ja) * 2009-03-16 2015-03-25 ダウ グローバル テクノロジーズ エルエルシー 分散体及び分散体を製造するための方法
US8734898B2 (en) 2012-09-21 2014-05-27 E I Du Pont De Nemours And Company Method for producing encapsulated nanoparticles
WO2017195705A1 (fr) * 2016-05-10 2017-11-16 株式会社クレハ Fines particules de polyamide, leur procédé de fabrication, et composition de fines particules de polyamide
WO2021233750A1 (fr) 2020-05-19 2021-11-25 Covestro Deutschland Ag Procédé de fabrication de particules de polyuréthane chargées de colorant
US20230220168A1 (en) 2020-05-19 2023-07-13 Covestro Deutschland Ag Method of manufacturing filled polyurethane particles

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3060145A (en) * 1959-07-01 1962-10-23 Sun Oil Co Precipitation of atactic olefin polymer in the presence of carbon black
EP0023047A1 (fr) * 1979-07-24 1981-01-28 Daikin Kogyo Co., Ltd. Procédé de préparation de poudre fine de polytétrafluoroéthylène contenant des charges
US4540716A (en) * 1983-01-13 1985-09-10 Diamond Shamrock Chemicals Company Method for making finely divided perfluorocarbon copolymer
US4724094A (en) * 1985-02-07 1988-02-09 Magnaflux Corporation Fluorescent magnetic composition and method of making and using same
EP0327199A2 (fr) * 1988-01-29 1989-08-09 Imperial Chemical Industries Plc Dispersions de particules composites
EP0334095A2 (fr) * 1988-03-21 1989-09-27 Eastman Kodak Company Procédé pour la préparation de poudres polymériques
EP0376653A2 (fr) * 1988-12-23 1990-07-04 Imperial Chemical Industries Plc Procédé pour préparer des particules de polyester, de polycarbonate ou de polyamide sans attrition, particules obtenues par le procédé et leur application

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3674719A (en) * 1970-12-23 1972-07-04 Du Pont Process for preparing microporous,open-celled cellular polyamide,polyester and polyacetal structures
US4702840A (en) * 1982-02-05 1987-10-27 Pall Corporation Charge modified polyamide membrane
JPH0617373B2 (ja) * 1984-07-06 1994-03-09 株式会社リコー 粒子径分布の狭い重合体粒子の製造法
US4904562A (en) * 1986-09-25 1990-02-27 Canon Kabushiki Kaisha Process for producing encapsulated toner
CA1287459C (fr) * 1986-10-01 1991-08-13 Mukesh Jain Methode de preparation de microspheres creuses

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3060145A (en) * 1959-07-01 1962-10-23 Sun Oil Co Precipitation of atactic olefin polymer in the presence of carbon black
EP0023047A1 (fr) * 1979-07-24 1981-01-28 Daikin Kogyo Co., Ltd. Procédé de préparation de poudre fine de polytétrafluoroéthylène contenant des charges
US4540716A (en) * 1983-01-13 1985-09-10 Diamond Shamrock Chemicals Company Method for making finely divided perfluorocarbon copolymer
US4724094A (en) * 1985-02-07 1988-02-09 Magnaflux Corporation Fluorescent magnetic composition and method of making and using same
EP0327199A2 (fr) * 1988-01-29 1989-08-09 Imperial Chemical Industries Plc Dispersions de particules composites
EP0334095A2 (fr) * 1988-03-21 1989-09-27 Eastman Kodak Company Procédé pour la préparation de poudres polymériques
EP0376653A2 (fr) * 1988-12-23 1990-07-04 Imperial Chemical Industries Plc Procédé pour préparer des particules de polyester, de polycarbonate ou de polyamide sans attrition, particules obtenues par le procédé et leur application

Also Published As

Publication number Publication date
EP0522147A1 (fr) 1993-01-13
AU661678B2 (en) 1995-08-03
AU1335692A (en) 1992-08-27
CA2078887A1 (fr) 1992-07-25
JPH05505643A (ja) 1993-08-19
US5264553A (en) 1993-11-23
WO1992013027A2 (fr) 1992-08-06

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