Cyclic olefin polymer containing little catalyst residue,...

C - Chemistry – Metallurgy – 08 – F

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C08F 6/08 (2006.01) C08F 6/02 (2006.01) C08F 10/00 (2006.01) C08L 23/08 (2006.01)

Patent

CA 2306996

A cycloolefin polymer reduced in the content of catalyst residues; and use thereof as an optical material. The catalyst used in polymerization and/or hydrogenation for producing a cycloolefin polymer is efficiently decomposed by adding at least one compound selected from the group consisting of .alpha.- hydroxy acids and .beta.-hydroxy acids each having one hydroxyl group and one carboxyl group in the molecule and their derivatives in each of which the hydroxyl group has been replaced with an alkoxyl group. The decomposition products are insolubilized in the reaction solvent used in the polymerization and/or hydrogenation and are thus efficiently precipitated and removed.

L'invention se rapporte à un polymère oléfinique cyclique à teneur réduite en restes de catalyseur et à son utilisation en tant que matière optique. On décompose efficacement le catalyseur au cours de la polymérisation et/ou de l'hydrogénation aux fins de production d'un polymère oléfinique cyclique en ajoutant au moins un composé sélectionné dans le groupe constitué par des acides .alpha.-hydroxylés et des acides .beta.-hydroxylés comportant chacun un groupe hydroxyle et un groupe carboxyle dans la molécule et par leurs dérivés dans lesquels le groupe hydroxyle a été remplacé par un groupe alcoxyle. Les produits de décomposition ne sont pas dissous dans le solvant de réaction utilisé au cours de la polymérisation et/ou de l'hydrogénation et peuvent ainsi être précipités et extraits.

LandOfFree

Say what you really think

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

Rating

Cyclic olefin polymer containing little catalyst residue,... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cyclic olefin polymer containing little catalyst residue,..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cyclic olefin polymer containing little catalyst residue,... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1783717

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