Process for the preparation of polyesters and copolyesters

C - Chemistry – Metallurgy – 08 – G

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C08G 63/85 (2006.01)

Patent

CA 2164805

For the preparation of polyesters and copolyesters, titanium dioxide precipitates and/or titanium dioxide/silicon dioxide coprecipitates having a composition of TiO2:SiO2 > 90:10 mol/mol and/or titanium dioxide/zirconium dioxide coprecipitates having a composition of TiO2:ZrO2 > 95:5 mol/mol, which have been obtained by hydrolytic precipitation of the corresponding metal alcoholates formed from mono- or polyhydric alcohols, are proposed as polycondensation catalysts. They offer increased safety for the ecosystem and have a higher catalytic activity than Sb2O3, so that the preferred amount used is only 10 to 100 ppm, based on the esters or oligoesters to be subjected to poly- condensation.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Process for the preparation of polyesters and copolyesters does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the preparation of polyesters and copolyesters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of polyesters and copolyesters will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1937337

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.