C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
403/13, 403/14
C08G 18/10 (2006.01) C08G 18/48 (2006.01) C08G 18/66 (2006.01) C08G 18/76 (2006.01)
Patent
CA 1231200
ABSTRACT OF THE DISCLOSURE A flexible polyurethane foam composition characterized by high tensile or tear strength is prepared by reacting an MDI prepolymer, prepared by reacting a MDI having a low functionality with an ethylene oxide-capped polypropylene glycol polyol, with a small amount of a tetraethylene glycol as a cross-linking agent and an ethylene oxide-capped polypropylene glycol polyol, the reaction carried out in the presence of a blowing amount of a blowing agent, such as water or a halocarbon, and a catalytic amount of a polyurethane catalyst, such as a combination of an amine and tetravalent tin catalyst. The addition of a small amount of a chlorinated phosphate flame-retardant agent mixed with the reaction provides for a polyurethane foam composition of good fire retardancy and which when exposed to open flame does not melt, but chars. Further, the addition of a trimerization catalyst provides a foam composition with reduced shrinkage.
486174
Fetherstonhaugh & Co.
Urylon Development Inc.
LandOfFree
High tear strength flexible urethane foam composition and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with High tear strength flexible urethane foam composition and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High tear strength flexible urethane foam composition and... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1271063