Self-dispersing curable epoxy resins, dispersions made...

C - Chemistry – Metallurgy – 08 – L

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C08L 63/00 (2006.01) C08G 59/04 (2006.01) C08G 59/06 (2006.01)

Patent

CA 2270965

A method of preparing a self-dispersing epoxy resin composition is provided. The method comprises reacting a polyepoxide with a polyoxyalkylene polyol wherein the equivalent ratio of epoxide groups of said polyepoxide to hydroxyl groups of said polyoxyalkylene polyol is greater than 10:1, to form a polyol- epoxy adduct and reacting said polyol-epoxy adduct with a polyepoxide and a polyhydric alcohol to form a self-dispersing epoxy resin. Also provided are aqueous dispersions of the self-dispersing epoxy resin and coating compositions comprising the same. The coating compositions are particularly useful as industrial maintenance coatings.

L'invention concerne un procédé de préparation d'une composition de résine époxy à dispersion autonome. Ce procédé comprend les étapes consistant à faire réagir un polyépoxyde avec un polyol de polyoxyalkylène, le rapport entre les groupes époxydes du polyépoxyde et les groupes hydroxyles du polyol de polyoxyalkylène étant supérieur à 10/1, afin de former un adduit polyol-époxy, puis à faire réagir cet adduit avec un polyépoxyde et un alcool polyhydrique, afin de former une résine époxy à dispersion autonome. L'invention concerne également des dispersions aqueuses de cette résine époxy ainsi que des compositions de revêtement, lesquelles comprennent cette résine et sont notamment utiles en tant que revêtements industriels d'entretien.

LandOfFree

Say what you really think

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

Rating

Self-dispersing curable epoxy resins, dispersions made... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Self-dispersing curable epoxy resins, dispersions made..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-dispersing curable epoxy resins, dispersions made... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1733929

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