C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 64/02 (2006.01) C08G 64/30 (2006.01)
Patent
CA 2704028
This invention relates to compositions of and processes for producing an unsubstituted or R-substituted poly(trimethylene glycol carbonate trimethylene glycol ether) diol. The processes use acidic ion exchange resins and include solvents.
La présente invention concerne des compositions de diol de poly(carbonate de triméthylèneglycol-éther de triméthylèneglycol) non substitué ou R-substitué, ainsi que des procédés de production de ce composé. Les procédés utilisent des résines échangeuses d'ions acides et mettent en jeu des solvants.
Dicosimo Robert
Drysdale Neville Everton
Sunkara Hari Babu
E. I. Du Pont de Nemours And Company
Torys Llp
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