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AU2001257291A1 - Method for preparing high molecular weight polycarbonate - Google Patents

Method for preparing high molecular weight polycarbonate

Info

Publication number
AU2001257291A1
AU2001257291A1 AU2001257291A AU5729101A AU2001257291A1 AU 2001257291 A1 AU2001257291 A1 AU 2001257291A1 AU 2001257291 A AU2001257291 A AU 2001257291A AU 5729101 A AU5729101 A AU 5729101A AU 2001257291 A1 AU2001257291 A1 AU 2001257291A1
Authority
AU
Australia
Prior art keywords
molecular weight
derivative
melt
alkali
high molecular
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.)
Abandoned
Application number
AU2001257291A
Inventor
Timothy Brydon Burnell
Johan Pieter Anna Heuts
Patrick Joseph Mccloskey
Paul Michael Smigelski Jr.
Hendricus Franciscus Zirkzee
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 AU2001257291A1 publication Critical patent/AU2001257291A1/en
Abandoned 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
    • C08G64/20—General preparatory processes
    • C08G64/30—General preparatory processes using carbonates
    • 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
    • C08G64/20—General preparatory processes
    • C08G64/30—General preparatory processes using carbonates
    • C08G64/307—General preparatory processes using carbonates 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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

A method of preparing polycarbonate by the melt process comprising the steps of:a) melting a dihydric phenol and a diester of carbonic acid for a time and at a temperature sufficient to form a melt; and thereafter introducing a catalyst composition comprising a tetraorganophosphonium salt or a derivative thereof and1) an alkali and/or alkali earth metal compound or derivative thereof or2) a less active alkali and/or alkali earth metal derivative thereof into the melt; andb) oligomerizing the product from step a) to a number average molecular weight of from about 3000 to about 7500; andc) polymerizing the product from step b) to a number average molecular weight of from about 16,000 to about 35,000.
AU2001257291A 2000-06-02 2001-04-27 Method for preparing high molecular weight polycarbonate Abandoned AU2001257291A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/584,984 US6228973B1 (en) 2000-06-02 2000-06-02 Method for preparing high molecular weight polycarbonate
US09584984 2000-06-02
PCT/US2001/013435 WO2001094445A1 (en) 2000-06-02 2001-04-27 Method for preparing high molecular weight polycarbonate

Publications (1)

Publication Number Publication Date
AU2001257291A1 true AU2001257291A1 (en) 2001-12-17

Family

ID=24339573

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001257291A Abandoned AU2001257291A1 (en) 2000-06-02 2001-04-27 Method for preparing high molecular weight polycarbonate

Country Status (10)

Country Link
US (1) US6228973B1 (en)
EP (1) EP1294793B9 (en)
JP (1) JP3491000B2 (en)
KR (1) KR100589111B1 (en)
CN (1) CN1244609C (en)
AT (1) ATE480576T1 (en)
AU (1) AU2001257291A1 (en)
DE (1) DE60143033D1 (en)
TW (1) TW527374B (en)
WO (1) WO2001094445A1 (en)

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ITRM20120656A1 (en) 2012-12-20 2014-06-21 Bayer Materialscience Ag MULTI-LAYER POLYCARBONATE-BASED ARTICLE WITH STRONG RESISTANCE TO ATMOSPHERIC AGENTS.
US20150368434A1 (en) 2012-12-20 2015-12-24 Bayer Materialscience Ag Organic colorants and coloured polymer compositions with good processing properties
CN105008446A (en) 2012-12-20 2015-10-28 拜耳材料科技股份有限公司 Subduedly coloured polycarbonate moulding compounds containing ir-reflective pigments
CN104918485A (en) 2013-01-18 2015-09-16 拜耳材料科技股份有限公司 Bird protection glazing
KR102241256B1 (en) 2013-06-14 2021-04-16 코베스트로 도이칠란트 아게 Glare-free, microstructured, and specially coated film
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CN110049826B (en) 2016-12-15 2023-11-24 科思创德国股份有限公司 Clear coated polycarbonate parts, their manufacture and uses
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Also Published As

Publication number Publication date
EP1294793B9 (en) 2011-01-26
US6228973B1 (en) 2001-05-08
WO2001094445A1 (en) 2001-12-13
DE60143033D1 (en) 2010-10-21
CN1244609C (en) 2006-03-08
TW527374B (en) 2003-04-11
KR20030007807A (en) 2003-01-23
EP1294793B1 (en) 2010-09-08
EP1294793A1 (en) 2003-03-26
JP3491000B2 (en) 2004-01-26
JP2003535937A (en) 2003-12-02
CN1444619A (en) 2003-09-24
ATE480576T1 (en) 2010-09-15
KR100589111B1 (en) 2006-06-13

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