C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
400/111
C08G 18/02 (2006.01)
Patent
CA 2023508
Mo3250 PU-329 NOVEL ISOCYANATE BLENDS ABSTRACT OF THE DISCLOSURE The present invention is directed to an isocyanate blend having an isocyanate group content of from about 16 to about 25% by weight and consisting essentially of: A) a modified isocyanate having an isocyanate group content of from about 18 to about 25% by weight and prepared by reacting 1 mole of methyleneb is (phenyl isocyanate) with from about 0.1 to about 0.3 moles of a 134 to 700 molecular weight poly-1,2-propylene ether glycol, and B) an isocyanate having an isocyanate group content of from about 16 to about 22% by weight and prepared by reacting: (i) from about 40 to about 60 parts by weight of methylenebis(phenyl isocyanate), (ii) from 0 to about 10 parts by weight of a carbodiimide group modified methylene- bis(phenyl isocyanate) having an isocyanate group content of from about 24 to about 33% by weight, and (iii) from about 30 to about 50 parts by weight of a polyester diol having a molecular weight of from about 1000 to about 3000, with the amounts of (i), (ii) and (iii) totalling 100 parts by weight, the weight ratio of A) to B) being from 10:1 to 1:10.
Corporation Bayer
Swabey Ogilvy Renault
LandOfFree
Isocyanate blends does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Isocyanate blends, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Isocyanate blends will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1626025