C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 65/48 (2006.01) C08G 18/16 (2006.01) C08G 18/48 (2006.01) C08G 65/46 (2006.01)
Patent
CA 2752427
Processes for preparing polytrimethylene ether glycol or copolymers thereof using an acid polycondensation catalyst and ion exchange resins are provided.
La présente invention concerne des procédés de préparation de polytriméthylène éther glycol ou ses copolymères à l'aide d'un catalyseur acide de polycondensation et des résines échangeuses d'ions.
E.i. Du Pont de Nemours And Company
Torys Llp
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