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GB1494052A - Method for preparing polycarbonate powder - Google Patents

Method for preparing polycarbonate powder

Info

Publication number
GB1494052A
GB1494052A GB40858/75A GB4085875A GB1494052A GB 1494052 A GB1494052 A GB 1494052A GB 40858/75 A GB40858/75 A GB 40858/75A GB 4085875 A GB4085875 A GB 4085875A GB 1494052 A GB1494052 A GB 1494052A
Authority
GB
United Kingdom
Prior art keywords
solution
polycarbonate
polycarbonate powder
receptacle
oct
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
GB40858/75A
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.)
Idemitsu Kosan Co Ltd
Original Assignee
Idemitsu Kosan 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 Idemitsu Kosan Co Ltd filed Critical Idemitsu Kosan Co Ltd
Publication of GB1494052A publication Critical patent/GB1494052A/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/90—Heating or cooling systems
    • B01F35/92—Heating or cooling systems for heating the outside of the receptacle, e.g. heated jackets or burners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/90—Heating or cooling systems
    • B01F2035/99—Heating
    • 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
    • C08J2369/00—Characterised by the use of polycarbonates; Derivatives of polycarbonates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Polyesters Or Polycarbonates (AREA)

Abstract

1494052 Preparing polycarbonate powder IDEMITSU KOSAN CO Ltd 6 Oct 1975 [5 Oct 1974] 40858/75 Heading C3R [Also in Division B1] A process for the continuous production of polycarbonate powder comprises heating polycarbonate solution in a receptacle 1 and simultaneously repeatedly subjecting the solution to to-and-fro agitation provided by rotation of one or more shafts 4, 4<SP>1</SP>, provided in the receptacle and having blades 5a, 5b each set at an angle to the axis of rotation of the shaft, one set of blades to direct solution in a first direction and a second set to a direct solution in an opposite direction. Volatile matter may escape from exit 8 and solution may be fed in at inlet 9. The polycarbonate used in the example is derived from bisphenol A. Specified solvents are tetrachloroethane, trichloroethane, dichloroethane, trichloroethylene, dichloroethylene, chloroform, methylene chloride, dioxan, tetrahydrofuran, chlorobenzene, toluene, ortho-, meta-, or parachlorobenzene and mixtures thereof.
GB40858/75A 1974-10-05 1975-10-06 Method for preparing polycarbonate powder Expired GB1494052A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP49114851A JPS5141048A (en) 1974-10-05 1974-10-05 Horikaaboneetofunmatsunoseizohoho oyobi sorenimochiirusochi

Publications (1)

Publication Number Publication Date
GB1494052A true GB1494052A (en) 1977-12-07

Family

ID=14648283

Family Applications (1)

Application Number Title Priority Date Filing Date
GB40858/75A Expired GB1494052A (en) 1974-10-05 1975-10-06 Method for preparing polycarbonate powder

Country Status (5)

Country Link
JP (1) JPS5141048A (en)
FR (1) FR2286847A1 (en)
GB (1) GB1494052A (en)
HK (1) HK69680A (en)
IT (1) IT1047688B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0465967A2 (en) * 1990-07-12 1992-01-15 Bayer Ag Continuous separation of aromatic polycarbonates in semicrystalline form from CH2Cll2 solutions

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5386745A (en) * 1976-08-17 1978-07-31 Unitika Ltd Production of aromatic copolyester powder and equipment for making the same
US4184911A (en) * 1977-06-13 1980-01-22 Mitsubishi Gas Chemical Company Process for producing powdery polycarbonate from a polycarbonate solution
JPH065593B2 (en) * 1982-09-28 1994-01-19 株式会社東芝 Pulse circuit of magnetic disk device
EP0525200B1 (en) * 1991-02-20 1998-10-07 Idemitsu Petrochemical Co., Ltd. Method of making polymer granules

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0465967A2 (en) * 1990-07-12 1992-01-15 Bayer Ag Continuous separation of aromatic polycarbonates in semicrystalline form from CH2Cll2 solutions
EP0465967A3 (en) * 1990-07-12 1992-11-19 Bayer Ag Continuous separation of aromatic polycarbonates in semicrystalline form from ch2cll2 solutions

Also Published As

Publication number Publication date
JPS5141048A (en) 1976-04-06
FR2286847A1 (en) 1976-04-30
HK69680A (en) 1980-12-19
FR2286847B1 (en) 1978-04-07
IT1047688B (en) 1980-10-20
JPS5315899B2 (en) 1978-05-27

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19951005