Semipermeable membranes of modified styrene-based polymers,...

C - Chemistry – Metallurgy – 08 – J

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

18/32

C08J 9/36 (2006.01) B01D 67/00 (2006.01) B01D 71/28 (2006.01) C08F 8/00 (2006.01)

Patent

CA 1182258

Semipermeable membranes of modified styrene-based polymers, process for their manufacture and their use. Abstract of the Disclosure Semipermeable membranes of modified styrene polymers are obtained by modifying styrene polymers containing reactive groups (A) through chemical reaction with (a) a monomeric compound containing at least two functional groups, (b) a polyfunctional oligomer of polymer, and (c) a compound containing at least one, preferably two groups capable of reaction with (b), provided that the reactive groups are amino, hydroxyl or mercapto groups, (B) through chemical reaction with components (b) and (c), provided that the reactive groups are halogen atoms, aldehyde, cyanate or thiocyanate groups, or (C) through chemical reaction with hydroxylamine and components (a), (b) and (c), provided that the reactive group is a nitrile group. The new membranes can be used in reverse osmosis and ultrafiltration processes. They show good permeability (flux) and rejection charac- teristics as well as good solvent, compaction and temperature resistance. Their range of molecular cut-offs lies preferably between about 200 and 2000.

417699

LandOfFree

Say what you really think

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

Rating

Semipermeable membranes of modified styrene-based polymers,... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Semipermeable membranes of modified styrene-based polymers,..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semipermeable membranes of modified styrene-based polymers,... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1211417

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