Aqueous polyurethane dispersions based on...

C - Chemistry – Metallurgy – 08 – L

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C08L 75/04 (2006.01) C08G 18/08 (2006.01) C08G 18/12 (2006.01) C08G 18/28 (2006.01) C08G 18/42 (2006.01) C08G 18/48 (2006.01) C08G 18/50 (2006.01) C08G 18/75 (2006.01) C08J 3/03 (2006.01) C09D 175/02 (2006.01)

Patent

CA 2198567

The present invention relates to aqueous polyurethane dispersions having a resinsolids content of 20 to 60 wt %, a viscosity at 23 °C of 10 to 20,000 mPa~s and a pH of 5.5 to 8.5, wherein the polyurethane has a weight average molecular weightof 5,000 to 500,000 and a urethane group content (calculated as -NHCO-O-, molecular weight = 59) of 2.5 to 15 wt %, and is based on a polyisocyanate component containing 50 to 100 wt % of 1-methyl-2,4- and/or -2,6-diisocyanatocyclohexane. The present invention also relates to aqueous binder compositions containing these aqueous polyurethane dispersions and known crosslinking resins and to the use ofthe aqueous polyurethane dispersions and aqueous binder compositions as binders for glass fiber sizings.

La présente invention concerne des dispersions aqueuses de polyuréthane ayant une teneur en solides de 20 à 60 % en poids, une viscosité à 23 degrés C de 10 à 20 000 mPa.s.et un pH de 5,5 à 8,5, où le polyuréthane possède un poids moléculaire pondéral moyen de 5 000 à 500 000 et une teneur en groupes uréthane (calculée sous forme de -NHCO-O-, poids moléculaire = 59) de 2,5 à 15 % en poids, et qui sont à base de polyisocyanate contenant 50 à 100 % en poids de 1-méthyl-2,4- et/ou de -2,6-diisocyanatocyclohexane. La présente invention concerne également des compositions aqueuses de liant contenant ces dispersions aqueuses de polyuréthane et des résines de réticulation connues et l'utilisation des dispersions aqueuses

LandOfFree

Say what you really think

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

Rating

Aqueous polyurethane dispersions based on... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Aqueous polyurethane dispersions based on..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aqueous polyurethane dispersions based on... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1410087

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