Method of producing a polyester, and use of the polyester...

Details Method of producing a polyester, and use of the polyester... Method of producing a polyester, and use of the polyester...

C - Chemistry, Metallurgy

08

G

C08G 63/83 (2006.01) C08G 63/86 (2006.01)

Patent

CA 2111969

2111969 9322367 PCTABS00027 The invention concerns a method of producing, without using antimony, a polyester from poly(ethylene terephthalate) units. Following esterification, a mixed catalyst consisting of 10 to 75 ppm of lithium and 15 to 80 ppm of germanium is used for polycondensation. The antimony-free polyester thus obtained is suitable for use in the manufacture of bottles, sheeting, film, fibre, filaments and moulded articles.

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