GB1476268A - Process for the preparation of polycarbonates - Google Patents

Process for the preparation of polycarbonates

Info

Publication number
GB1476268A
GB1476268A GB4746875A GB4746875A GB1476268A GB 1476268 A GB1476268 A GB 1476268A GB 4746875 A GB4746875 A GB 4746875A GB 4746875 A GB4746875 A GB 4746875A GB 1476268 A GB1476268 A GB 1476268A
Authority
GB
United Kingdom
Prior art keywords
diol
equiv
transesterification
diols
distilled
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
GB4746875A
Other languages
English (en)
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
Publication of GB1476268A publication Critical patent/GB1476268A/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)
GB4746875A 1974-12-11 1975-11-18 Process for the preparation of polycarbonates Expired GB1476268A (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
GB1476268A true GB1476268A (en) 1977-06-10

Family

ID=9146037

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4746875A Expired GB1476268A (en) 1974-12-11 1975-11-18 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 (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4808691A (en) * 1987-05-21 1989-02-28 Bayer Aktiengesellschaft Polyether-polycarbonate diols and processes for their production and use
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
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
US5621065A (en) * 1995-04-07 1997-04-15 Bayer Aktiengesellschift Polycarbonate diols, their preparation and use as starting products for polyurethane plastics
US6156919A (en) * 1999-01-09 2000-12-05 Bayer Aktiengesellschaft Process for the preparation of aliphatic oligocarbonate diols from dimethyl carbonate and aliphatic diols
US6818784B2 (en) 2001-06-27 2004-11-16 Bayer Aktiengesellschaft Process for producing aliphatic oligocarbonate diols
US6833433B1 (en) 2000-06-06 2004-12-21 Bayer Aktiengesellschaft Method for producing aliphatic oligocarbonate diols
US6894182B2 (en) 2001-11-20 2005-05-17 Bayer Aktiengesellschaft Aliphatic oligocarbonate polyols prepared in the presence of a catalyst and a process for preparing the same
US7112693B2 (en) 2001-06-27 2006-09-26 Bayer Aktiengesellschaft Process for producing aliphatic oligocarbonate diols
US11059934B2 (en) 2016-12-19 2021-07-13 Covestro Deutschland Ag Process for producing (cyclo)aliphatic polycarbonate polyols having low reactivity

Families Citing this family (4)

* 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
DE10303881A1 (de) 2003-01-31 2004-08-12 Bayer Ag Verfahren zur Herstellung von oligomeren aliphatischen Diolen, darauf basierenden Polycarbonatdiolen und deren Prepolymeren
DE102004032419A1 (de) * 2004-07-05 2006-01-26 Bayer Materialscience Ag Herstellung klarer Isocyanatprepolymere auf Hexandiolethercarbonat-Basis
EP4378972A1 (de) 2022-11-30 2024-06-05 Covestro Deutschland AG (cyclo)aliphatische polycarbonatpolyol-zusammensetzung

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4808691A (en) * 1987-05-21 1989-02-28 Bayer Aktiengesellschaft Polyether-polycarbonate diols and processes for their production and use
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
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
US5110666A (en) * 1991-05-06 1992-05-05 Reeves Brothers, Inc. Coated fabric structure for air bag applications
US5621065A (en) * 1995-04-07 1997-04-15 Bayer Aktiengesellschift Polycarbonate diols, their preparation and use as starting products for polyurethane plastics
US6156919A (en) * 1999-01-09 2000-12-05 Bayer Aktiengesellschaft Process for the preparation of aliphatic oligocarbonate diols from dimethyl carbonate and aliphatic diols
US6833433B1 (en) 2000-06-06 2004-12-21 Bayer Aktiengesellschaft Method for producing aliphatic oligocarbonate diols
US6818784B2 (en) 2001-06-27 2004-11-16 Bayer Aktiengesellschaft Process for producing aliphatic oligocarbonate diols
US7112693B2 (en) 2001-06-27 2006-09-26 Bayer Aktiengesellschaft Process for producing aliphatic oligocarbonate diols
US6894182B2 (en) 2001-11-20 2005-05-17 Bayer Aktiengesellschaft Aliphatic oligocarbonate polyols prepared in the presence of a catalyst and a process for preparing the same
US11059934B2 (en) 2016-12-19 2021-07-13 Covestro Deutschland Ag Process for producing (cyclo)aliphatic polycarbonate polyols having low reactivity

Also Published As

Publication number Publication date
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
CA1064957A (en) 1979-10-23
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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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee