Production of polyurethane foams from modified polyester polyol

Details Production of polyurethane foams from modified polyester polyol Production of polyurethane foams from modified polyester polyol

1973-03-12

1978-02-07

Ivy, C. Warren

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 25AN, C08G 1846, C08G 1810, C08G 1814

Patent

active

040726347

ABSTRACT:
A modified polyester polyol prepolymer having a hydroxyl functionality of between 2 and 3 is produced by reacting a cyclic nitrile carbonate such as adipodi(nitrile carbonate) with a polyester polyol having hydroxyl numbers of about 50 to about 450. The product has a viscosity preferably in the range of about 15,000 to 30,000 centipoise at about 25.degree. C. Novel urethane foams are prepared from the modified polyester polyol prepolymers by reacting the same with aromatic isocyanates to form urethane foams having improved stability to ultraviolet discoloration and improved hydrolytic stability.

REFERENCES:
patent: 3531425 (1970-09-01), Burk
patent: 3554962 (1971-01-01), Fischer
patent: 3652507 (1972-03-01), Burk
patent: 3661811 (1972-05-01), Hardy
patent: 3663514 (1972-05-01), Campbell
patent: 3702320 (1972-11-01), Fritok
patent: 3706710 (1972-12-01), Camilleri
patent: 3790508 (1974-02-01), Triolo

Affiliated with

Also associated with

Rating

Production of polyurethane foams from modified polyester polyol does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Production of polyurethane foams from modified polyester polyol , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Production of polyurethane foams from modified polyester polyol will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1400164