C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 67/08 (2006.01) C07C 69/80 (2006.01) C08G 63/181 (2006.01) C08G 63/183 (2006.01) C08G 63/81 (2006.01) C08G 63/85 (2006.01) C08G 63/86 (2006.01) C08G 63/87 (2006.01)
Patent
CA 2433029
A substantially soluble solution of isophthalic acid in a glycol can be prepared and contacted with terephthalic acid, its ester, its oligomer, or combinations of two or more thereof. The solution can be used to incorporate isophthalic acid into polyester for bottle resins and fiber.
L'invention concerne un procédé de préparation d'une solution d'acide isophtalique sensiblement soluble dans un glycol, qui comporte l'étape consistant à mettre en contact la solution avec de l'acide téréphtalique, un ester ou un oligomère de celui-ci, ou des combinaisons de ceux-ci. Cette solution peut servir à incorporer de l'acide isophtalique dans du polyester en vue de produire des résines pour bouteilles et des fibres.
Bennett Jones Llp
E.i. Du Pont de Nemours And Company
Invista Technologies S.a.r.l.
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