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ES448262A1 - Process for the preparation of polycarbonates containing aliphatically bound hydroxyl end groups - Google Patents

Process for the preparation of polycarbonates containing aliphatically bound hydroxyl end groups

Info

Publication number
ES448262A1
ES448262A1 ES448262A ES448262A ES448262A1 ES 448262 A1 ES448262 A1 ES 448262A1 ES 448262 A ES448262 A ES 448262A ES 448262 A ES448262 A ES 448262A ES 448262 A1 ES448262 A1 ES 448262A1
Authority
ES
Spain
Prior art keywords
preparation
end groups
hydroxyl end
polycarbonates containing
aliphatically bound
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
ES448262A
Other languages
Spanish (es)
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
Application filed by Bayer AG filed Critical Bayer AG
Publication of ES448262A1 publication Critical patent/ES448262A1/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
    • C08G64/16—Aliphatic-aromatic or araliphatic polycarbonates
    • C08G64/1608—Aliphatic-aromatic or araliphatic 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
    • 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
    • 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

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)
  • Polyurethanes Or Polyureas (AREA)

Abstract

Procedure for obtaining polycarbonates with terminal hydroxy groups, aliphatically linked, characterized in that dihydroxylic aliphatic compounds are reacted with glycolic carbonate in the presence of catalysts and an inert solvent in which ethylene glycol is practically insoluble, and the ethylene glycol released during reaction by fractional distillation as azeotrope with the inert dissolution medium. (Machine-translation by Google Translate, not legally binding)
ES448262A 1975-05-27 1976-05-26 Process for the preparation of polycarbonates containing aliphatically bound hydroxyl end groups Expired ES448262A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752523352 DE2523352A1 (en) 1975-05-27 1975-05-27 METHOD FOR PRODUCING ALIPHATIC POLYCARBONATES

Publications (1)

Publication Number Publication Date
ES448262A1 true ES448262A1 (en) 1977-12-01

Family

ID=5947486

Family Applications (1)

Application Number Title Priority Date Filing Date
ES448262A Expired ES448262A1 (en) 1975-05-27 1976-05-26 Process for the preparation of polycarbonates containing aliphatically bound hydroxyl end groups

Country Status (9)

Country Link
JP (1) JPS51144492A (en)
AT (1) AT355310B (en)
BE (1) BE842196A (en)
BR (1) BR7603333A (en)
DE (1) DE2523352A1 (en)
ES (1) ES448262A1 (en)
FR (1) FR2312521A1 (en)
GB (1) GB1526885A (en)
IT (1) IT1061310B (en)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4131731A (en) * 1976-11-08 1978-12-26 Beatrice Foods Company Process for preparing polycarbonates
JPS5556124A (en) * 1978-10-19 1980-04-24 Beatrice Foods Co Manufacture of polycarbonate
JPS5564535A (en) * 1978-11-10 1980-05-15 Nisso Yuka Kogyo Kk Separation of mixture of ethylene glycol and ethylene carbonate
WO1987000185A1 (en) * 1985-07-01 1987-01-15 The Dow Chemical Company A process for increasing the molecular weight of poly(alkylene carbonate) polyols
JP2623550B2 (en) * 1987-01-27 1997-06-25 東亞合成株式会社 Method for producing polycarbonate diol
JPS6466236A (en) * 1987-09-08 1989-03-13 Mitsubishi Gas Chemical Co Aliphatic polycarbonate and production thereof
JP2554775B2 (en) * 1990-11-29 1996-11-13 出光石油化学株式会社 Method for producing polycarbonate
EP0754714B1 (en) * 1994-04-08 1999-11-03 Asahi Kasei Kogyo Kabushiki Kaisha Process for producing hydroxyl-terminated polycarbonate
EP0781792B1 (en) 1995-12-28 2002-02-06 Asahi Glass Company Ltd. Cross-linked polyurethane resin sheet and laminated product employing it
WO2013076099A1 (en) 2011-11-24 2013-05-30 Bayer Intellectual Property Gmbh Production and use of high-molecular-weight aliphatic polycarbonates
EP3298065A4 (en) * 2015-05-21 2019-02-27 Basf Se PREPARATION OF HYPERBRANCHED POLYCARBONATE POLYCARBONATE AND USE THEREOF
TWI761404B (en) 2016-12-19 2022-04-21 德商科思創德意志股份有限公司 Process for producing (cyclo) aliphatic polycarbonate polyols having low reactivity
EP3783045A1 (en) 2019-08-19 2021-02-24 Covestro Deutschland AG Process for preparing polyether carbonate polyols
EP3783046A1 (en) 2019-08-19 2021-02-24 Covestro Deutschland AG Process for preparing polyether carbonate polyols
EP4017900A1 (en) 2019-08-19 2022-06-29 Covestro Deutschland AG Method for preparing polyether carbonate alcohols
EP4017899A1 (en) 2019-08-19 2022-06-29 Covestro Intellectual Property GmbH & Co. KG Process for preparing polyether carbonate alcohols
EP3783044A1 (en) 2019-08-19 2021-02-24 Covestro Deutschland AG Process for preparing polyether carbonate polyols
WO2021032555A1 (en) 2019-08-19 2021-02-25 Covestro Deutschland Ag Process for preparing polyether carbonate alcohols
EP3862377A1 (en) 2020-02-04 2021-08-11 Covestro Deutschland AG Process for producing polyether carbonate polyols
EP4039727A1 (en) 2021-02-05 2022-08-10 Covestro Deutschland AG Method for the preparation of polyether carbonate alcohols
EP4180474A1 (en) 2021-11-12 2023-05-17 Covestro Deutschland AG Method for the preparation of polyether carbonate alcohols
US20250066547A1 (en) 2022-01-18 2025-02-27 Asahi Kasei Kabushiki Kaisha Method for producing polycarbonate diol, polycarbonate diol and transesterification catalyst
EP4293065B8 (en) 2022-06-14 2025-11-26 Technische Universität Berlin Polymers containing a polyether carbonate-containing block, preparation method thereof and use of the polymers as a tenside
EP4378972A1 (en) 2022-11-30 2024-06-05 Covestro Deutschland AG (cyclo)aliphatic polycarbonate polyol composition
DE102023000396A1 (en) 2023-02-09 2024-08-14 Covestro Deutschland Ag Process for the preparation of polyether carbonate alcohols

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2001091A1 (en) * 1970-01-12 1971-07-22 Huels Chemische Werke Ag Carboxylic acid alcoholysis catalysts forpro

Also Published As

Publication number Publication date
FR2312521B1 (en) 1982-09-10
FR2312521A1 (en) 1976-12-24
AT355310B (en) 1980-02-25
BR7603333A (en) 1976-12-07
IT1061310B (en) 1983-02-28
DE2523352A1 (en) 1976-12-09
BE842196A (en) 1976-11-25
GB1526885A (en) 1978-10-04
JPS51144492A (en) 1976-12-11
ATA381876A (en) 1979-07-15

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