FR2010777A1 - Branched aliphatic polycarbonates from tri-and tetra - Google Patents

Branched aliphatic polycarbonates from tri-and tetra

Info

Publication number
FR2010777A1
FR2010777A1 FR6919527A FR6919527A FR2010777A1 FR 2010777 A1 FR2010777 A1 FR 2010777A1 FR 6919527 A FR6919527 A FR 6919527A FR 6919527 A FR6919527 A FR 6919527A FR 2010777 A1 FR2010777 A1 FR 2010777A1
Authority
FR
France
Prior art keywords
tetra
tri
branched aliphatic
ch2oh
esterification
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.)
Pending
Application number
FR6919527A
Other languages
French (fr)
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 FR2010777A1 publication Critical patent/FR2010777A1/en
Pending 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
    • C08G64/0216—Aliphatic polycarbonates saturated containing a chain-terminating or -crosslinking agent

Abstract

Branched aliphatic polycarbonates are prepared by re-esterification of diaryl carbonates with tri- and tetra-functional hydroxy compounds of the general formula R-C(CH2OH)3, where R is H, C1-5 alkyl or CH2OH. The re-esterification is carried out without a catalyst at 100-200 deg.C., and the reactants are not used in equivalent amounts. The polycarbonates are new compounds. They have a molecular weight below 5000, preferably below 2000. They vary from viscous oils to resinous or glassy materials. They can be used as thickeners for organic solutions or printing pastes or as a basis for ointments; they are intermediates for cross-linking agents for acrylic resin lacquers.
FR6919527A 1968-06-12 1969-06-12 Branched aliphatic polycarbonates from tri-and tetra Pending FR2010777A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1770618 1968-06-12

Publications (1)

Publication Number Publication Date
FR2010777A1 true FR2010777A1 (en) 1970-02-20

Family

ID=5700574

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6919527A Pending FR2010777A1 (en) 1968-06-12 1969-06-12 Branched aliphatic polycarbonates from tri-and tetra

Country Status (3)

Country Link
BE (1) BE734409A (en)
FR (1) FR2010777A1 (en)
NL (1) NL6908907A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0424219A2 (en) * 1989-10-11 1991-04-24 Daicel Chemical Industries, Ltd. Polycarbonate-polyol composition and polycarbonate (meth) acrylate compositions and urethane (meth) acrylate compositions prepared therefrom
WO1999001495A1 (en) * 1997-06-30 1999-01-14 Bayer Aktiengesellschaft Method for producing branched polycarbonates
WO2005026234A1 (en) * 2003-09-12 2005-03-24 Basf Aktiengesellschaft Highly functional, highly branched or hyperbranched polycarbonates and the production and use hereof
WO2006089940A1 (en) * 2005-02-25 2006-08-31 Basf Aktiengesellschaft High-functionality highly branched or hyperbranched polycarbonates and their preparation and use
WO2007134736A2 (en) * 2006-05-19 2007-11-29 Basf Coatings Ag Powder coating materials with high-functionality, highly branched or hyperbranched polycarbonates

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0424219A2 (en) * 1989-10-11 1991-04-24 Daicel Chemical Industries, Ltd. Polycarbonate-polyol composition and polycarbonate (meth) acrylate compositions and urethane (meth) acrylate compositions prepared therefrom
EP0424219A3 (en) * 1989-10-11 1992-02-26 Daicel Chemical Industries, Ltd. Polycarbonate-polyol composition and polycarbonate (meth) acrylate compositions and urethane (meth) acrylate compositions prepared therefrom
WO1999001495A1 (en) * 1997-06-30 1999-01-14 Bayer Aktiengesellschaft Method for producing branched polycarbonates
US6307006B1 (en) 1997-06-30 2001-10-23 Bayer Aktiengesellschaft Method for producing branched polycarbonates
US7521521B2 (en) 2003-09-12 2009-04-21 Basf Aktiengesellschaft Highly functional highly branched or hyperbranched polycarbonates and the production and use hereof
CN100381479C (en) * 2003-09-12 2008-04-16 巴斯福股份公司 Highly functional, highly branched or hyperbranched polycarbonates and the production and use hereof
WO2005026234A1 (en) * 2003-09-12 2005-03-24 Basf Aktiengesellschaft Highly functional, highly branched or hyperbranched polycarbonates and the production and use hereof
WO2006089940A1 (en) * 2005-02-25 2006-08-31 Basf Aktiengesellschaft High-functionality highly branched or hyperbranched polycarbonates and their preparation and use
US7649074B2 (en) 2005-02-25 2010-01-19 Basf Aktiengesellschaft High-functionality highly branched or hyperbranched polycarbonates and their preparation and use
EP2204424A1 (en) * 2005-02-25 2010-07-07 Basf Se Highly functional, highly or hyper-branched polycarbonates and their manufacture and application thereof
CN101128554B (en) * 2005-02-25 2012-02-08 巴斯福股份公司 High-functionality highly branched or hyperbranched polycarbonates and their preparation and use
WO2007134736A2 (en) * 2006-05-19 2007-11-29 Basf Coatings Ag Powder coating materials with high-functionality, highly branched or hyperbranched polycarbonates
WO2007134736A3 (en) * 2006-05-19 2008-01-31 Basf Coatings Ag Powder coating materials with high-functionality, highly branched or hyperbranched polycarbonates

Also Published As

Publication number Publication date
NL6908907A (en) 1969-12-16
BE734409A (en) 1969-11-17

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