CA1019886A - Process for preparing polycarbonates - Google Patents

Process for preparing polycarbonates

Info

Publication number
CA1019886A
CA1019886A CA183,947A CA183947A CA1019886A CA 1019886 A CA1019886 A CA 1019886A CA 183947 A CA183947 A CA 183947A CA 1019886 A CA1019886 A CA 1019886A
Authority
CA
Canada
Prior art keywords
preparing polycarbonates
polycarbonates
preparing
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
CA183,947A
Other versions
CA183947S (en
Inventor
Eckart Reese
Rudolf Binsack
Hugo Vernaleken
Heinrich Haupt
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.)
Bayer AG
Original Assignee
Bayer AG
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
Priority claimed from DE19722254917 external-priority patent/DE2254917C3/en
Application filed by Bayer AG filed Critical Bayer AG
Application granted granted Critical
Publication of CA1019886A publication Critical patent/CA1019886A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
    • C08G64/04—Aromatic polycarbonates
    • C08G64/06—Aromatic polycarbonates not containing aliphatic unsaturation
    • C08G64/14—Aromatic polycarbonates not containing aliphatic unsaturation containing a chain-terminating or -crosslinking agent
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/42—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes polyesters; polyethers; polyacetals
    • H01B3/421—Polyesters
    • H01B3/426—Polycarbonates
CA183,947A 1972-11-09 1973-10-22 Process for preparing polycarbonates Expired CA1019886A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722254917 DE2254917C3 (en) 1972-11-09 Process for the production of branched polycarbonates and their use for extrusion films

Publications (1)

Publication Number Publication Date
CA1019886A true CA1019886A (en) 1977-10-25

Family

ID=5861267

Family Applications (1)

Application Number Title Priority Date Filing Date
CA183,947A Expired CA1019886A (en) 1972-11-09 1973-10-22 Process for preparing polycarbonates

Country Status (9)

Country Link
US (1) US3931108A (en)
JP (1) JPS5328193B2 (en)
BE (1) BE807021A (en)
CA (1) CA1019886A (en)
CH (1) CH586724A5 (en)
FR (1) FR2206355B1 (en)
GB (1) GB1432494A (en)
IT (1) IT1000134B (en)
NL (1) NL176573C (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT998851B (en) * 1972-10-30 1976-02-20 Gen Electric PROCEDURE FOR THE PREPARATION OF AROMATIC POLYCARBONATES
DE2706126C2 (en) * 1977-02-14 1984-03-29 Bayer Ag, 5090 Leverkusen Flame-retardant polycarbonate films
DE2842005A1 (en) * 1978-09-27 1980-04-10 Bayer Ag POLYCARBONATES WITH ALKYLPHENYL END GROUPS, THEIR PRODUCTION AND THEIR USE
US4514334A (en) * 1979-05-31 1985-04-30 General Electric Company Polyphenolic compounds
JPS614726A (en) * 1984-06-19 1986-01-10 Mitsubishi Gas Chem Co Inc Polycarbonate resin optical molding
DE3524054A1 (en) * 1985-07-05 1987-01-08 Bayer Ag TETRA- (HYDROXYARYL) -BIS-CHINOXALINE, THEIR PRODUCTION AND THEIR USE AS BRANCHING AGENTS FOR THERMOPLASTIC POLYCARBONATES
US4680370A (en) * 1985-09-30 1987-07-14 The Dow Chemical Company Branched polycarbonate composition from tris(hydroxyaryl)phosphorus compound
US4717437A (en) * 1986-06-03 1988-01-05 The United States Of America As Represented By The Secretary Of The Air Force Low modulus damping film
US4775739A (en) * 1986-06-18 1988-10-04 Mitsubishi Chemical Industries Limited Process for producing polycarbonate resin with tertiary alryl phenol molecular weight modifier
US4888400A (en) * 1989-01-17 1989-12-19 General Electric Company Preparation of branched thermoplastic polycarbonate from polycarbonate and polyhydric phenol
EP0400478A3 (en) * 1989-06-01 1992-02-19 General Electric Company Branched polycarbonates and method of preparation
US5552224A (en) * 1993-11-22 1996-09-03 The Dow Chemical Company Carbonate blend polymer compositions comprising a high molecular weight branched carbonate polymer component and methods for their preparation
US5508359A (en) * 1993-11-22 1996-04-16 The Dow Chemical Company Blends of high MW branched polycarbonate with a lower MW polycarbonate
CN1279698A (en) * 1997-11-27 2001-01-10 出光石油化学株式会社 Branched polycarbonate resin
CN112371868B (en) * 2020-10-26 2022-03-15 广州法思特精密五金有限公司 Screw head forming process

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA715142A (en) * 1965-08-03 H. Reinking Norman Pressure sensitive resins and process for preparing same
US3646102A (en) * 1968-08-28 1972-02-29 Idemitsu Kosan Co Method for continuously preparing polycarbonate oligomer

Also Published As

Publication number Publication date
GB1432494A (en) 1976-04-14
CH586724A5 (en) 1977-04-15
DE2254917A1 (en) 1974-05-30
FR2206355A1 (en) 1974-06-07
JPS5328193B2 (en) 1978-08-12
US3931108A (en) 1976-01-06
JPS49134756A (en) 1974-12-25
DE2254917B2 (en) 1976-10-21
BE807021A (en) 1974-05-07
NL7315202A (en) 1974-05-13
FR2206355B1 (en) 1977-03-11
NL176573C (en) 1985-05-01
IT1000134B (en) 1976-03-30

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