IT1059855B - PROCEDURE FOR THE PRODUCTION OF POLYCARBONATES - Google Patents

PROCEDURE FOR THE PRODUCTION OF POLYCARBONATES

Info

Publication number
IT1059855B
IT1059855B IT7001875A IT7001875A IT1059855B IT 1059855 B IT1059855 B IT 1059855B IT 7001875 A IT7001875 A IT 7001875A IT 7001875 A IT7001875 A IT 7001875A IT 1059855 B IT1059855 B IT 1059855B
Authority
IT
Italy
Prior art keywords
polycarbonates
procedure
production
Prior art date
Application number
IT7001875A
Other languages
Italian (it)
Original Assignee
Poudres & Explosifs Ste Nale
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 Poudres & Explosifs Ste Nale filed Critical Poudres & Explosifs Ste Nale
Application granted granted Critical
Publication of IT1059855B publication Critical patent/IT1059855B/en

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)
IT7001875A 1974-12-11 1975-12-09 PROCEDURE FOR THE PRODUCTION OF POLYCARBONATES IT1059855B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7440838A FR2294199A1 (en) 1974-12-11 1974-12-11 PERFECTED PROCESS FOR PREPARING POLYCARBONATES IN TWO STAGES

Publications (1)

Publication Number Publication Date
IT1059855B true IT1059855B (en) 1982-06-21

Family

ID=9146037

Family Applications (1)

Application Number Title Priority Date Filing Date
IT7001875A IT1059855B (en) 1974-12-11 1975-12-09 PROCEDURE FOR THE PRODUCTION OF POLYCARBONATES

Country Status (11)

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

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3717060A1 (en) * 1987-05-21 1988-12-01 Bayer Ag POLYETHER-POLYCARBONATE-DIOLE, THEIR PRODUCTION AND USE AS STARTING PRODUCTS FOR POLYURETHANE PLASTICS
US4891421A (en) * 1987-06-22 1990-01-02 Dainippon Ink And Chemicals, Inc. Processes for producing polycarbonate polyols
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
US5298303A (en) * 1989-03-20 1994-03-29 Reeves Brothers, Inc. Fabric structure for severe use applications
US5130384A (en) * 1989-03-20 1992-07-14 Reeves Brothers, Inc. Calenderable thermoplastic polyurethane elastomer compositions containing millable linear polyurethanes
US5110666A (en) * 1991-05-06 1992-05-05 Reeves Brothers, Inc. Coated fabric structure for air bag applications
DE19513164A1 (en) * 1995-04-07 1996-10-10 Bayer Ag Hydroxy-terminated polycarbonates based on high mol. cyclic dimer diols with and use in prodn. of polyurethanes stable against hydrolysis and oxidn.
DE19900554A1 (en) * 1999-01-09 2000-07-13 Bayer Ag Process for the preparation of aliphatic oligocarbonate diols from dimethyl carbonate and aliphatic diols
DE10027907A1 (en) 2000-06-06 2001-12-13 Bayer Ag Production of aliphatic oligocarbonate diols, useful in the production of plastics, fibers, coatings and adhesives, comprises reaction of aliphatic diols with dimethyl carbonate in a multi-stage process.
US7112693B2 (en) 2001-06-27 2006-09-26 Bayer Aktiengesellschaft Process for producing aliphatic oligocarbonate diols
DE10130882A1 (en) 2001-06-27 2003-01-16 Bayer Ag Process for the preparation of aliphatic oligocarbonate diols
DE10156896A1 (en) 2001-11-20 2003-05-28 Bayer Ag Use of catalysts for the production of aliphatic oligocarbonate polyols
DE10303881A1 (en) 2003-01-31 2004-08-12 Bayer Ag Process for the preparation of oligomeric aliphatic diols, polycarbonate diols based thereon and their prepolymers
DE102004032419A1 (en) * 2004-07-05 2006-01-26 Bayer Materialscience Ag Preparation of clear isocyanate prepolymers based on hexanediol ether carbonate
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
EP4378972A1 (en) 2022-11-30 2024-06-05 Covestro Deutschland AG (cyclo)aliphatic polycarbonate polyol composition

Also Published As

Publication number Publication date
CA1064957A (en) 1979-10-23
FR2294199A1 (en) 1976-07-09
DK558975A (en) 1976-06-12
JPS5183693A (en) 1976-07-22
IE42097B1 (en) 1980-06-04
DE2555805A1 (en) 1976-10-28
GB1476268A (en) 1977-06-10
LU73968A1 (en) 1977-07-01
NL7513786A (en) 1976-06-15
FR2294199B1 (en) 1977-04-08
BE836535A (en) 1976-06-11
IE42097L (en) 1976-06-11

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