Polyurethane prepolymer compositions, foams made therefrom and m

Details Polyurethane prepolymer compositions, foams made therefrom and m Polyurethane prepolymer compositions, foams made therefrom and m

1998-03-20

1998-10-06

Foelak, Morton

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

521159, 560 26, 560115, 560158, 560330, 560359, C07C 2600, C07C24900, C08G 1810

Patent

active

058178600

ABSTRACT:
A polyisocyanate prepolymer composition is comprised of the reaction product of (a) a polyisocyanate having an average functionality of at least 2 and containing at least about 20 percent by weight of a diisocyanate monomer, (b) a monohydric alcohol and (c) a polyol having an average hydroxyl functionality of at least about 1.8 to at most about 3.2 wherein the prepolymer composition has (i) an amount of isocyanate groups by weight sufficient to react with water in the absence of a supplemental blowing agent to make a foam, (ii) at most about 10.0 percent by weight of the diisocyanate monomer and (iii) an amount of the polyisocyanate that is capped by the monohydric alcohol sufficient to prevent gelling of the prepolymer composition. The prepolymer composition may be reacted with water to form a polyurethane foam.

REFERENCES:
patent: 4052347 (1977-10-01), Dieterich et al.
patent: 4355138 (1982-10-01), Markusch et al.
patent: 4855490 (1989-08-01), Markusch et al.
patent: 4864025 (1989-09-01), Robin et al.
patent: 4888442 (1989-12-01), Dunlap et al.
patent: 4904522 (1990-02-01), Markusch
patent: 4910332 (1990-03-01), Kahl et al.
patent: 4963675 (1990-10-01), Robin et al.
patent: 5350777 (1994-09-01), Yuge et al.
patent: 5356943 (1994-10-01), Dueber et al.
patent: 5461091 (1995-10-01), Hoffmann et al.
patent: 5574124 (1996-11-01), Schmalstieg et al.

Affiliated with

Also associated with

Rating

Polyurethane prepolymer compositions, foams made therefrom and m does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polyurethane prepolymer compositions, foams made therefrom and m, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polyurethane prepolymer compositions, foams made therefrom and m will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-79814