C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 63/82 (2006.01) C08G 63/08 (2006.01)
Patent
CA 2437520
The invention relates to a method for preparing polyesters A containing several mid-chain free acid functions by ring-opening polymerisation in the presence of a chain initiator: the benzyl diester of the tartaric acid, the phenyl radical of which is optionally substituted. A: aliphatic based on cyclic esters such as lactides and glycolides.
L'invention concerne un procédé de préparation de polyesters A contenant plusieurs fonctions acides libres disposées en milieu de chaîne, par polymérisation par ouverture de cycle en présence d'un initiateur de chaîne : le diester benzylique de l'acide tartrique dont le radical phényle est éventuellement substitué. A: aliphatique à base des esters cycliques commes les lactides et glycolides.
Brigati Charles
Cazaux Jean-Bernard
Louchkoff Alexandre
Goudreau Gage Dubuc
Ipsen Pharma S.a.s
Societe de Conseils de Recherches Et D'applications Scientifique
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