Process for preparing rigid and flexible polyurethane foams

Details Process for preparing rigid and flexible polyurethane foams Process for preparing rigid and flexible polyurethane foams

1997-11-04

2000-11-14

Cooney, Jr., John M.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

521155, 521159, 521160, 521170, C08G 1814

Patent

active

061471348

ABSTRACT:
Process for preparing a rigid and a flexible polyurethane foam by reacting a polyisocyanate and two different polyols under foam forming conditions, the polyisocyanate being reacted with said polyols in the absence of compounds comprising primary, secondary or tertiary amines. Flexible foams are obtained which do not show a major glass transition temperature between -100.degree. C. and +25.degree. C.

REFERENCES:
patent: 4454248 (1984-06-01), Pollock et al.
patent: 5519068 (1996-05-01), Okada et al.
patent: 5552450 (1996-09-01), Hinz et al.
patent: 5688835 (1997-11-01), Scherbel et al.
patent: 5698601 (1997-12-01), Welte et al.
patent: 5900442 (1999-05-01), Leenslag et al.

Affiliated with

Also associated with

Rating

Process for preparing rigid and flexible polyurethane foams does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for preparing rigid and flexible polyurethane foams, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing rigid and flexible polyurethane foams will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2065981