JPS6448837A - Production of poly-p-phenyleneterephthalamide film - Google Patents

Production of poly-p-phenyleneterephthalamide film

Info

Publication number
JPS6448837A
JPS6448837A JP62203092A JP20309287A JPS6448837A JP S6448837 A JPS6448837 A JP S6448837A JP 62203092 A JP62203092 A JP 62203092A JP 20309287 A JP20309287 A JP 20309287A JP S6448837 A JPS6448837 A JP S6448837A
Authority
JP
Japan
Prior art keywords
phenyleneterephthalamide
dope
film
poly
water
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.)
Pending
Application number
JP62203092A
Other languages
Japanese (ja)
Inventor
Hideo Kasatani
Shigemitsu Muraoka
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.)
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi Chemical Industry Co 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
Application filed by Asahi Chemical Industry Co Ltd filed Critical Asahi Chemical Industry Co Ltd
Priority to JP62203092A priority Critical patent/JPS6448837A/en
Publication of JPS6448837A publication Critical patent/JPS6448837A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/901—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies
    • B29C48/902—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies internally
    • 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
    • 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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • 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
    • B29C48/919—Thermal treatment of the stream of extruded material, e.g. cooling using a bath, e.g. extruding into an open bath to coagulate or cool the material
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0019—Combinations of extrusion moulding with other shaping operations combined with shaping by flattening, folding or bending

Abstract

PURPOSE:To obtain a film excellent in strength, heat resistance, etc., by converting an optically anisotropic dope containing poly-p- phenyleneterephthalamide into optically isotropic one by contact with a water- containing gas before introducing it into a coagulation bath in the formation of a film from the optically anisotropic dope containing poly-p- phenyleneterephthalamide. CONSTITUTION:An optically anisotropic dope containing poly-p- phenyleneterephthalamide of an inherent viscosity etainh>=2.5 and sulfuric acid of a concentration >=95wt.% is extruded through an annular orifice 1 in the annular form. A gas having an absolute humidity >=1g of water/kg of dry air, a relative humidity <=99% and a temperature >=70 deg.C is simultaneously supplied through a gas supply pipe 3 and a gas supply opening 4 to expand the dope and to apply heat and water to the dope to convert is into optically isotropic one. This dope is introduced into a coagulation bath 8, coagulated and wound around a winding roll 9 to obtain a poly-p-phenyleneterephthalamide film.
JP62203092A 1987-08-17 1987-08-17 Production of poly-p-phenyleneterephthalamide film Pending JPS6448837A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62203092A JPS6448837A (en) 1987-08-17 1987-08-17 Production of poly-p-phenyleneterephthalamide film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62203092A JPS6448837A (en) 1987-08-17 1987-08-17 Production of poly-p-phenyleneterephthalamide film

Publications (1)

Publication Number Publication Date
JPS6448837A true JPS6448837A (en) 1989-02-23

Family

ID=16468239

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62203092A Pending JPS6448837A (en) 1987-08-17 1987-08-17 Production of poly-p-phenyleneterephthalamide film

Country Status (1)

Country Link
JP (1) JPS6448837A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009016846A (en) * 2007-07-09 2009-01-22 Thomas & Betts Internatl Inc Bushing well with improved coupling member

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009016846A (en) * 2007-07-09 2009-01-22 Thomas & Betts Internatl Inc Bushing well with improved coupling member

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