C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 18/76 (2006.01) B27N 1/02 (2006.01) C08G 18/10 (2006.01) C08G 18/80 (2006.01) C08L 97/02 (2006.01) C09J 175/04 (2006.01)
Patent
CA 2143883
Isocyanate prepolymers which are useful as binders are made from a polyisocyanate mixture and a hydroxyl compound having at least about 1 hydroxyl group. The polyisocyanate mixture is made up of from about 50 to about 60% by weight of polyphenyl polymethylene polyisocyanate and from about 40 to about 50% by weight of an isomeric mixture of diphenylmethane diisocyanate (MDI). The isomeric mixture of MDI is made up of from about 4 to about 30% by weight of the 2,4'-isomer and from about 70 to about 96% by weight of the 4,4'-isomer. The binders of the present invention are advantageous in that they may be used in high moisture, low temperature conditions without a catalyst. Reduced MDI emissions are also achieved when the binders of the present invention are used to make composite materials.
Frink John W.
Haider Karl W.
Joseph Michael A.
Lawson Bonnie L.
Layton Heber D.
Corporation Bayer
Miles Inc.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
LandOfFree
Modified pmdi for faster press times or lower press... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Modified pmdi for faster press times or lower press..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modified pmdi for faster press times or lower press... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1603778