GB8501769D0 - Porous spherical cellulose acetate particles - Google Patents

Porous spherical cellulose acetate particles

Info

Publication number
GB8501769D0
GB8501769D0 GB858501769A GB8501769A GB8501769D0 GB 8501769 D0 GB8501769 D0 GB 8501769D0 GB 858501769 A GB858501769 A GB 858501769A GB 8501769 A GB8501769 A GB 8501769A GB 8501769 D0 GB8501769 D0 GB 8501769D0
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.)
Granted
Application number
GB858501769A
Other versions
GB2152936A (en
GB2152936B (en
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/en
Priority claimed from JP59054004A external-priority patent/JPS60197746A/en
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
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 (en) 1984-01-24 1984-01-24 Porous spherical cellulose acetate particle and its production
JP59054004A JPS60197746A (en) 1984-03-21 1984-03-21 Porous spherical particles and preparation thereof

Publications (3)

Publication Number Publication Date
GB8501769D0 true GB8501769D0 (en) 1985-02-27
GB2152936A GB2152936A (en) 1985-08-14
GB2152936B 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 (en)
DE (1) DE3502329A1 (en)
FR (1) FR2558475B1 (en)
GB (1) GB2152936B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114028999A (en) * 2021-11-12 2022-02-11 泸州北方纤维素有限公司 Method for granulating ethyl cellulose particles

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU610594B2 (en) * 1987-04-16 1991-05-23 Christian Bindschaedler Process for preparing a powder of water-insoluble polymer which can be redispersed in a liquid phase, the resulting powder and utilization thereof
DE4106623B4 (en) * 1991-02-27 2005-06-09 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Hydroxyl-containing cellulose acetate microspheres and process for their preparation
SE0102369D0 (en) * 2001-07-03 2001-07-03 Monocell Ab New method
CN102911379B (en) * 2011-08-04 2014-04-23 南通醋酸纤维有限公司 Method for preparing cellulose acetate microspheres and product prepared by method
WO2015029790A1 (en) 2013-09-02 2015-03-05 Jnc株式会社 Method for producing porous cellulose particles, and porous cellulose particles

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 (en) * 1976-04-22 1984-08-20 Purdue Research Foundation METHOD OF PROCEDURE FOR 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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114028999A (en) * 2021-11-12 2022-02-11 泸州北方纤维素有限公司 Method for granulating ethyl cellulose particles

Also Published As

Publication number Publication date
CA1235119A (en) 1988-04-12
GB2152936A (en) 1985-08-14
FR2558475A1 (en) 1985-07-26
DE3502329A1 (en) 1985-07-25
GB2152936B (en) 1987-07-08
FR2558475B1 (en) 1988-12-16

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Legal Events

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

Effective date: 19960124