C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 63/688 (2006.01) C08G 63/20 (2006.01) C08G 69/44 (2006.01) C09D 167/00 (2006.01) C09D 177/12 (2006.01)
Patent
CA 2104667
Disclosed is a water-dissipatable or dispersible polyester containing sulfonate groups that has improved stability having a substantial number of capped carboxyl groups attached to the sulfomonomer moieties. This polyester can be prepared by capping the carboxyl end groups of the polyester with oxirane compounds or by polymerizing the reactants wherein one reactant is a diol that is a diester adduct of a glycol and a dicarboxylic acid sulfomonomer.
Polyester dispersable dans l'eau, renfermant des groupes sulfonates et possédant une stabilité améliorée du fait de la présence d'un nombre important de groupes carboxyles bloqués, liés aux fractions de sulfomonomères. Ce polyester peut être préparé par blocage des groupes carboxyliques terminaux par des oxiranes ou par polymérisation des réactifs, où l'un des réactifs est un diol, produit d'addition d'un glycol et d'un sulfomonomère d'acide dicarboxylique.
Kuo Thauming
Moody Keith M.
Eastman Chemical Company
Gowling Lafleur Henderson Llp
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