GB2013559A - Process for preparing cellulose triacetate films - Google Patents

Process for preparing cellulose triacetate films

Info

Publication number
GB2013559A
GB2013559A GB7850087A GB7850087A GB2013559A GB 2013559 A GB2013559 A GB 2013559A GB 7850087 A GB7850087 A GB 7850087A GB 7850087 A GB7850087 A GB 7850087A GB 2013559 A GB2013559 A GB 2013559A
Authority
GB
United Kingdom
Prior art keywords
cellulose triacetate
preparing cellulose
triacetate films
mixed solvent
poor solvent
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
GB7850087A
Other versions
GB2013559B (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.)
Konica Minolta Inc
Original Assignee
Konica Minolta 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 Konica Minolta Inc filed Critical Konica Minolta Inc
Publication of GB2013559A publication Critical patent/GB2013559A/en
Application granted granted Critical
Publication of GB2013559B publication Critical patent/GB2013559B/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
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/91—Heating, e.g. for cross linking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D7/00—Producing flat articles, e.g. films or sheets
    • B29D7/01—Films or sheets
    • 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

Abstract

Cellulose triacetate film is prepared from a dope using a mixed solvent of methylene chloride and a poor solvent for cellulose triacetate, the mixed solvent containing 7 to 30% by weight of the poor solvent and the cast layer is heated to maintain a temperature from 30 to 42 DEG C for at least 15 seconds within 3 minutes from casting.
GB7850087A 1977-12-28 1978-12-28 Process for preparing cellulose triacetate films Expired GB2013559B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16044377A JPS5514201A (en) 1977-12-28 1977-12-28 Method of manufacturing cellulose triacetate film

Publications (2)

Publication Number Publication Date
GB2013559A true GB2013559A (en) 1979-08-15
GB2013559B GB2013559B (en) 1982-06-03

Family

ID=15715032

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7850087A Expired GB2013559B (en) 1977-12-28 1978-12-28 Process for preparing cellulose triacetate films

Country Status (2)

Country Link
JP (1) JPS5514201A (en)
GB (1) GB2013559B (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4631157A (en) * 1985-09-16 1986-12-23 Bend Research, Inc. Production of permeable cellulose triacetate membranes
EP0488368A1 (en) * 1990-11-30 1992-06-03 Fuji Photo Film Co., Ltd. Film casting method
US5152947A (en) * 1990-04-19 1992-10-06 Fuji Photo Film Co., Ltd. Process for producing cellulose triacetate film
EP0647671A1 (en) * 1993-10-08 1995-04-12 Teijin Limited Method of producing an acylated cellulose film
US5494114A (en) * 1993-01-06 1996-02-27 Globe Fire Sprinkler Corporation Fire extinguisher sprinkler construction
EP0704473A1 (en) * 1994-09-16 1996-04-03 Eastman Kodak Company Process for making cellulose triacetate photographic film base
EP0708135A1 (en) 1994-10-20 1996-04-24 Fuji Photo Film Co., Ltd. Cellulose triacetate film and process for producing the same
US5695694A (en) * 1993-10-08 1997-12-09 Teijin Limited Method of producing an acylated cellulose film
US6599458B1 (en) 1994-10-20 2003-07-29 Fuji Photo Film Co., Ltd. Cellulose triacetate film and process for producing the same

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58156612A (en) * 1982-03-12 1983-09-17 ギユンタ−・フエルスタ− Guide limitting apparatus for running road
JPS59185628A (en) * 1983-04-06 1984-10-22 Agency Of Ind Science & Technol Film manufacturing device
JPS60162105U (en) * 1985-03-20 1985-10-28 草竹　杉晃 Piece stop block
JPH106351A (en) * 1996-06-26 1998-01-13 Konica Corp Preparation of cellulose triacetate film and preparation of member for liquid crystal displaying

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4631157A (en) * 1985-09-16 1986-12-23 Bend Research, Inc. Production of permeable cellulose triacetate membranes
US5152947A (en) * 1990-04-19 1992-10-06 Fuji Photo Film Co., Ltd. Process for producing cellulose triacetate film
EP0488368A1 (en) * 1990-11-30 1992-06-03 Fuji Photo Film Co., Ltd. Film casting method
US5494114A (en) * 1993-01-06 1996-02-27 Globe Fire Sprinkler Corporation Fire extinguisher sprinkler construction
EP0647671A1 (en) * 1993-10-08 1995-04-12 Teijin Limited Method of producing an acylated cellulose film
US5695694A (en) * 1993-10-08 1997-12-09 Teijin Limited Method of producing an acylated cellulose film
EP0704473A1 (en) * 1994-09-16 1996-04-03 Eastman Kodak Company Process for making cellulose triacetate photographic film base
EP0708135A1 (en) 1994-10-20 1996-04-24 Fuji Photo Film Co., Ltd. Cellulose triacetate film and process for producing the same
US6599458B1 (en) 1994-10-20 2003-07-29 Fuji Photo Film Co., Ltd. Cellulose triacetate film and process for producing the same

Also Published As

Publication number Publication date
JPS5514201A (en) 1980-01-31
JPS6139890B2 (en) 1986-09-06
GB2013559B (en) 1982-06-03

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Legal Events

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