DE2520861A1 - Verbessertes verfahren fuer die herstellung von polycarbonaten - Google Patents

Verbessertes verfahren fuer die herstellung von polycarbonaten

Info

Publication number
DE2520861A1
DE2520861A1 DE19752520861 DE2520861A DE2520861A1 DE 2520861 A1 DE2520861 A1 DE 2520861A1 DE 19752520861 DE19752520861 DE 19752520861 DE 2520861 A DE2520861 A DE 2520861A DE 2520861 A1 DE2520861 A1 DE 2520861A1
Authority
DE
Germany
Prior art keywords
dihydric phenol
alkali metal
halogen
bis
gluconic acid
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.)
Ceased
Application number
DE19752520861
Other languages
German (de)
English (en)
Inventor
Gary Wayne Ragsdale
Jorgen Helm Vestergaard
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of DE2520861A1 publication Critical patent/DE2520861A1/de
Ceased legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G64/00Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
    • C08G64/20General preparatory processes
    • C08G64/22General preparatory processes using carbonyl halides
    • C08G64/24General preparatory processes using carbonyl halides and phenols

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyesters Or Polycarbonates (AREA)
DE19752520861 1974-05-31 1975-05-10 Verbessertes verfahren fuer die herstellung von polycarbonaten Ceased DE2520861A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/475,131 US3943101A (en) 1974-05-31 1974-05-31 Process for preparing polycarbonates with a metal chelating agent

Publications (1)

Publication Number Publication Date
DE2520861A1 true DE2520861A1 (de) 1975-12-11

Family

ID=23886317

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19752520861 Ceased DE2520861A1 (de) 1974-05-31 1975-05-10 Verbessertes verfahren fuer die herstellung von polycarbonaten

Country Status (6)

Country Link
US (1) US3943101A (https=)
JP (1) JPS5921891B2 (https=)
CA (1) CA1054744A (https=)
DE (1) DE2520861A1 (https=)
IT (1) IT1038379B (https=)
NL (1) NL7506323A (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0280153A3 (en) * 1987-02-26 1990-02-07 Bayer Ag Process for the preparation of polycarbonate solutions

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5731348Y2 (https=) * 1976-02-20 1982-07-09
US4921940A (en) * 1988-08-15 1990-05-01 Xerox Corporation Process for the purification of Ti containing polycarbonate with solvent, complexing agent and water
WO2013130752A1 (en) * 2012-02-28 2013-09-06 Sabic Innovative Plastics Ip B.V. Processes for preparing polycarbonates with enhanced optical properties
JP7435588B2 (ja) * 2019-03-14 2024-02-21 三菱ケミカル株式会社 ビスフェノール組成物及びポリカーボネート樹脂

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB882049A (en) * 1958-12-03 1961-11-08 Union Carbide Corp Improvements in and relating to polycarbonates
US3492268A (en) * 1967-01-13 1970-01-27 Mobay Chemical Corp Polycarbonates of improved color properties

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3635895A (en) * 1965-09-01 1972-01-18 Gen Electric Process for preparing thermoplastic polycarbonates
US3763063A (en) * 1972-06-14 1973-10-02 Gen Electric Color stabilized polycarbonate composition containing a cadmium or cerium salt of an alkanoic acid an alkanoic acid and an organic phosphite

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB882049A (en) * 1958-12-03 1961-11-08 Union Carbide Corp Improvements in and relating to polycarbonates
US3492268A (en) * 1967-01-13 1970-01-27 Mobay Chemical Corp Polycarbonates of improved color properties

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0280153A3 (en) * 1987-02-26 1990-02-07 Bayer Ag Process for the preparation of polycarbonate solutions

Also Published As

Publication number Publication date
NL7506323A (nl) 1975-12-02
JPS512797A (https=) 1976-01-10
US3943101A (en) 1976-03-09
IT1038379B (it) 1979-11-20
JPS5921891B2 (ja) 1984-05-23
CA1054744A (en) 1979-05-15

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8131 Rejection