GB2152936B - Porous spherical cellulose acetate particles - Google Patents
Porous spherical cellulose acetate particlesInfo
- 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
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)
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)
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)
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 |
-
1985
- 1985-01-23 CA CA000472623A patent/CA1235119A/en not_active Expired
- 1985-01-24 DE DE19853502329 patent/DE3502329A1/de not_active Withdrawn
- 1985-01-24 GB GB08501769A patent/GB2152936B/en not_active Expired
- 1985-01-24 FR FR8500983A patent/FR2558475B1/fr not_active Expired
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 |