CA1064957A - Process for the preparation of polycarbonates - Google Patents

Process for the preparation of polycarbonates

Info

Publication number
CA1064957A
CA1064957A CA240,852A CA240852A CA1064957A CA 1064957 A CA1064957 A CA 1064957A CA 240852 A CA240852 A CA 240852A CA 1064957 A CA1064957 A CA 1064957A
Authority
CA
Canada
Prior art keywords
diol
transesterification
evaporator
stage
temperature
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
CA240,852A
Other languages
English (en)
French (fr)
Inventor
Jean-Pierre Senet
Alain A. Cau
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.)
Societe Nationale des Poudres et Explosifs
Original Assignee
Societe Nationale des Poudres et Explosifs
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 Societe Nationale des Poudres et Explosifs filed Critical Societe Nationale des Poudres et Explosifs
Application granted granted Critical
Publication of CA1064957A publication Critical patent/CA1064957A/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
    • C08G64/02—Aliphatic polycarbonates
    • C08G64/0208—Aliphatic polycarbonates saturated
    • 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
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
    • C08G18/44—Polycarbonates
    • 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
    • C08G64/305—General preparatory processes using carbonates and alcohols

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)
  • Polyurethanes Or Polyureas (AREA)
CA240,852A 1974-12-11 1975-12-01 Process for the preparation of polycarbonates Expired CA1064957A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7440838A FR2294199A1 (fr) 1974-12-11 1974-12-11 Procede perfectionne de preparation de polycarbonates en deux etapes

Publications (1)

Publication Number Publication Date
CA1064957A true CA1064957A (en) 1979-10-23

Family

ID=9146037

Family Applications (1)

Application Number Title Priority Date Filing Date
CA240,852A Expired CA1064957A (en) 1974-12-11 1975-12-01 Process for the preparation of polycarbonates

Country Status (11)

Country Link
JP (1) JPS5183693A (da)
BE (1) BE836535A (da)
CA (1) CA1064957A (da)
DE (1) DE2555805A1 (da)
DK (1) DK558975A (da)
FR (1) FR2294199A1 (da)
GB (1) GB1476268A (da)
IE (1) IE42097B1 (da)
IT (1) IT1059855B (da)
LU (1) LU73968A1 (da)
NL (1) NL7513786A (da)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4891421A (en) * 1987-06-22 1990-01-02 Dainippon Ink And Chemicals, Inc. Processes for producing polycarbonate polyols
US6977290B2 (en) 2003-01-31 2005-12-20 Bayer Aktiengesellschaft Process for preparing oligomeric aliphatic diols, polycarbonatediols based thereon and prepolymers thereof

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3717060A1 (de) * 1987-05-21 1988-12-01 Bayer Ag Polyether-polycarbonat-diole, ihre herstellung und verwendung als ausgangsprodukte fuer polyurethankunststoffe
US5130384A (en) * 1989-03-20 1992-07-14 Reeves Brothers, Inc. Calenderable thermoplastic polyurethane elastomer compositions containing millable linear polyurethanes
US5298303A (en) * 1989-03-20 1994-03-29 Reeves Brothers, Inc. Fabric structure for severe use applications
US5001208A (en) * 1989-03-20 1991-03-19 Reeves Brothers, Inc. Linear polyurethane elastomer compositions based on mixed polycarbonate and polyether polyols
US5096992A (en) * 1989-03-20 1992-03-17 Reeves Brothers, Inc. Use of modified diisocyanates for preparing linear thermoplastic polyurethane elastomers having improved properties
US5110666A (en) * 1991-05-06 1992-05-05 Reeves Brothers, Inc. Coated fabric structure for air bag applications
DE19513164A1 (de) * 1995-04-07 1996-10-10 Bayer Ag Polycarbonat-Diole, ihre Herstellung und Verwendung als Ausgangsprodukte für Polyurethan-Kunststoffe
DE19900554A1 (de) * 1999-01-09 2000-07-13 Bayer Ag Verfahren zur Herstellung von aliphatischen Oligocarbonatdiolen aus Dimethylcarbonat und aliphatischen Diolen
DE10027907A1 (de) 2000-06-06 2001-12-13 Bayer Ag Verfahren zur Herstellung von aliphatischen Oligocarbanatdiolen
DE10130882A1 (de) 2001-06-27 2003-01-16 Bayer Ag Verfahren zur Herstellung von aliphatischen Oligocarbonatdiolen
US7112693B2 (en) 2001-06-27 2006-09-26 Bayer Aktiengesellschaft Process for producing aliphatic oligocarbonate diols
DE10156896A1 (de) 2001-11-20 2003-05-28 Bayer Ag Verwendung von Katalysatoren zur Herstellung von aliphatischen Oligocarbonatpolyolen
DE102004032419A1 (de) * 2004-07-05 2006-01-26 Bayer Materialscience Ag Herstellung klarer Isocyanatprepolymere auf Hexandiolethercarbonat-Basis
TWI761404B (zh) 2016-12-19 2022-04-21 德商科思創德意志股份有限公司 製備具有低反應性（環）脂族聚碳酸酯多元醇之方法
EP4378972A1 (de) 2022-11-30 2024-06-05 Covestro Deutschland AG (cyclo)aliphatische polycarbonatpolyol-zusammensetzung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4891421A (en) * 1987-06-22 1990-01-02 Dainippon Ink And Chemicals, Inc. Processes for producing polycarbonate polyols
US6977290B2 (en) 2003-01-31 2005-12-20 Bayer Aktiengesellschaft Process for preparing oligomeric aliphatic diols, polycarbonatediols based thereon and prepolymers thereof

Also Published As

Publication number Publication date
GB1476268A (en) 1977-06-10
IE42097L (en) 1976-06-11
LU73968A1 (da) 1977-07-01
FR2294199A1 (fr) 1976-07-09
BE836535A (fr) 1976-06-11
IT1059855B (it) 1982-06-21
IE42097B1 (en) 1980-06-04
FR2294199B1 (da) 1977-04-08
NL7513786A (nl) 1976-06-15
DE2555805A1 (de) 1976-10-28
DK558975A (da) 1976-06-12
JPS5183693A (da) 1976-07-22

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