C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 63/91 (2006.01) C08G 63/83 (2006.01) C08G 63/86 (2006.01)
Patent
CA 2077997
RHONE-POULENC VISCOSUISSE SA PCT 9122 Abstract In a process for antimony-free preparation of a polyester, after transesterification using a manganese catalyst, said catalyst is blocked by means of a phosphorus compound in a P/Mn molar ratio of < 1. 10- 100 ppm of Ge are additionally used as polycondensation mixed catalyst. The resulting antimony-free polyester is suitable for the production of bottles, sheets and filaments.
Enggasser Josiane
Gesche Paul
Staehlin Roland
Gowling Lafleur Henderson Llp
Rhone-Polenc Viscosuisse Sa
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