Improved process for preparing continuously...

C - Chemistry – Metallurgy – 08 – F

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C08F 2/00 (2006.01)

Patent

CA 2693009

The present invention concerns a process for preparing continuously variable composition copolymers comprising: (a) providing a reaction vessel comprising a first monomer composition; (b) providing a feed vessel comprising a second monomer composition; (c) initiating a polymerization reaction in said reaction vessel; (d) continuing the polymerization reaction during the gradual addition of said second monomer composition from said feed vessel to said reaction vessel wherein the gradual addition of the second monomer composition is performed such that continuously variable composition copolymers are achieved; (e) maintaining said polymerization until at least 90 % of the total monomer composition has been converted to a copolymer; wherein said copolymer has a weight average molecular weight from 10,000 to 1,000,000; said copolymer is soluble in lubricating oil, characterized in that the monomers provided in the reaction vessel by said first monomer composition composes at least 50 % by weight of all the monomers used to prepare said copolymer.

La présente invention porte sur un procédé de préparation de copolymères de composition variable en continu. Le procédé consiste à: (a) se procurer un récipient de réaction renfermant une première composition de monomères; (b) se procurer un récipient d'alimentation renfermant une seconde composition de monomères; (c) amorcer une réaction de polymérisation dans le récipient de réaction; (d) continuer la réaction de polymérisation pendant l'addition progressive de la seconde composition de monomères du récipient d'alimentation au récipient de réaction, de façon à obtenir des copolymères à composition variable en continu; (e) maintenir la polymérisation jusqu'à ce qu'au moins 90% de la composition totale des monomères ait été convertis en un copolymère. Le copolymère possède une masse moléculaire moyenne en poids de 10 000 à 1 000 000, est soluble dans de l'huile lubrifiante, est caractérisé en ce que les monomères introduits dans le récipient de réaction par la première composition de monomères représentent au moins 50% en poids de tous les monomères utilisés pour sa préparation.

LandOfFree

Say what you really think

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

Rating

Improved process for preparing continuously... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Improved process for preparing continuously..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Improved process for preparing continuously... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1722193

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