GB2152936B - Porous spherical cellulose acetate particles - Google Patents

Porous spherical cellulose acetate particles

Info

Publication number
GB2152936B
GB2152936B GB08501769A GB8501769A GB2152936B GB 2152936 B GB2152936 B GB 2152936B GB 08501769 A GB08501769 A GB 08501769A GB 8501769 A GB8501769 A GB 8501769A GB 2152936 B GB2152936 B GB 2152936B
Authority
GB
United Kingdom
Prior art keywords
cellulose acetate
porous spherical
spherical cellulose
acetate particles
particles
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.)
Expired
Application number
GB08501769A
Other languages
English (en)
Other versions
GB2152936A (en
GB8501769D0 (en
Inventor
Kazuhiro Yamazaki
Manabu Uchida
Etsuo Ohtake
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.)
Daicel Corp
Original Assignee
Daicel Chemical Industries 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
Priority claimed from JP59010535A external-priority patent/JPS60155245A/ja
Priority claimed from JP59054004A external-priority patent/JPS60197746A/ja
Application filed by Daicel Chemical Industries Ltd filed Critical Daicel Chemical Industries Ltd
Publication of GB8501769D0 publication Critical patent/GB8501769D0/en
Publication of GB2152936A publication Critical patent/GB2152936A/en
Application granted granted Critical
Publication of GB2152936B publication Critical patent/GB2152936B/en
Expired 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
    • C08J3/12—Powdering or granulating
    • C08J3/14—Powdering or granulating by precipitation from solutions
    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/28—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
    • 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
    • C08J2201/00—Foams characterised by the foaming process
    • C08J2201/04—Foams characterised by the foaming process characterised by the elimination of a liquid or solid component, e.g. precipitation, leaching out, evaporation
    • C08J2201/054—Precipitating the polymer by adding a non-solvent or a different solvent
    • 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
    • C08J2301/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
    • C08J2301/08—Cellulose derivatives
    • C08J2301/10—Esters of organic acids
    • C08J2301/12—Cellulose acetate

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
GB08501769A 1984-01-24 1985-01-24 Porous spherical cellulose acetate particles Expired GB2152936B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP59010535A JPS60155245A (ja) 1984-01-24 1984-01-24 酢酸セルロ−ス多孔質球状粒子及びその製造方法
JP59054004A JPS60197746A (ja) 1984-03-21 1984-03-21 多孔質球状粒子及びその製法

Publications (3)

Publication Number Publication Date
GB8501769D0 GB8501769D0 (en) 1985-02-27
GB2152936A GB2152936A (en) 1985-08-14
GB2152936B true GB2152936B (en) 1987-07-08

Family

ID=26345819

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08501769A Expired GB2152936B (en) 1984-01-24 1985-01-24 Porous spherical cellulose acetate particles

Country Status (4)

Country Link
CA (1) CA1235119A (de)
DE (1) DE3502329A1 (de)
FR (1) FR2558475B1 (de)
GB (1) GB2152936B (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2564386B2 (ja) * 1987-04-16 1996-12-18 クリスチャン ビンチャエドラー 水不溶性ポリマーの粉末の調整方法
DE4106623B4 (de) * 1991-02-27 2005-06-09 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Hydroxylgruppenhaltige Celluloseacetat-Mikrokugeln und Verfahren zu ihrer Herstellung
SE0102369D0 (sv) * 2001-07-03 2001-07-03 Monocell Ab New method
CN102911379B (zh) * 2011-08-04 2014-04-23 南通醋酸纤维有限公司 一种醋酸纤维素微球的制备方法及由该方法制备的产品
JP6369467B2 (ja) * 2013-09-02 2018-08-08 Jnc株式会社 多孔性セルロース粒子の製造方法および多孔性セルロース粒子
CN114028999B (zh) * 2021-11-12 2024-07-02 泸州北方纤维素有限公司 乙基纤维素颗粒的造粒方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1899061A (en) * 1930-03-19 1933-02-28 Silberrad Oswald Manufacture of cellulose acetate
GB565343A (en) * 1942-12-14 1944-11-07 John Guilfoyle Williams Improvements relating to the production of cellular materials from cellulose derivatives
SE434848B (sv) * 1976-04-22 1984-08-20 Purdue Research Foundation Forfaringssett for framstellning av porosa cellulosaperlor
US4228276A (en) * 1979-03-26 1980-10-14 Eastman Kodak Company Direct precipitation method for producing extrusion-grade cellulose acetate powder and resulting product
JPS5624429A (en) * 1979-08-03 1981-03-09 Yoshiaki Motozato Preparation of porous spherical particle of cellulose

Also Published As

Publication number Publication date
CA1235119A (en) 1988-04-12
DE3502329A1 (de) 1985-07-25
FR2558475B1 (fr) 1988-12-16
GB2152936A (en) 1985-08-14
GB8501769D0 (en) 1985-02-27
FR2558475A1 (fr) 1985-07-26

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19960124