Cast polyurethane composition

C - Chemistry – Metallurgy – 08 – G

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C08G 18/62 (2006.01) C08G 18/10 (2006.01) C08G 18/69 (2006.01)

Patent

CA 2215479

The present invention relates to a cast polyurethane obtainable by a process comprising reacting (a) a polydiene polyol having a number average molecular weight between 500 and 500,000 with (b) an isocyanate or isocyanate prepolymer having two or more isocyanate groups per molecule, and then curing the reaction product with an aromatic curing agent which has low polarity as determined by a solubility parameter of less than 10.5. Preferably, the polydiene polyol is a hydrogenated polybutadiene diol. The present invention further relates to articles containing the cast polyurethanes.

La présente invention concerne un polyuréthane coulé que l'on peut obtenir par un procédé comprenant la réaction (a) d'un polyol polydiénique de poids moléculaire numérique moyen variant entre 500 et 500 000 avec (b) un isocyanate ou un prépolymère d'isocyanate portant deux groupes isocyanate ou plus par molécule, et le durcissement du produit de réaction à l'aide d'un agent de durcissement aromatique de faible polarité tel que déterminé par un paramètre de solubilité inférieur à 10,5. De préférence, le polyol polydiénique est un polybutadiène-diol hydrogéné. La présente invention concerne également des objets contenant les polyuréthanes coulés.

LandOfFree

Say what you really think

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

Rating

Cast polyurethane composition does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

     

Profile ID: LFCA-PAI-O-1539798

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