Energy absorbing polyurethane foams

Details Energy absorbing polyurethane foams Energy absorbing polyurethane foams

1996-11-14

1997-12-16

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521159, 521160, 521174, 521176, C08G 1834, C08G 1848

Patent

active

056986092

ABSTRACT:
An open-celled polyurethane foam is provided having a density of 1.5 to 5.0 pcf, a G value of 30 to 80 over a static load range of 1.0 to 2.0 psi based on a 2.0 inch thickness and a 24 inch drop height and, an airflow in the range of 0.05 to 0.5 scfm, 25% as compressive strength of 4.0 psi or more prepared by a process comprising reacting, under foam forming conditions:

REFERENCES:
patent: 3931450 (1976-01-01), Patton, Jr. et al.
patent: 4212954 (1980-07-01), Nomura et al.
patent: 4237240 (1980-12-01), Jarre et al.
patent: 4278772 (1981-07-01), Raynor
patent: 4362825 (1982-12-01), Grabhoefer et al.
patent: 4374934 (1983-02-01), Raynor
patent: 4923904 (1990-05-01), Hasegawa et al.
patent: 4987156 (1991-01-01), Tozune et al.
patent: 5177119 (1993-01-01), Motte
patent: 5232957 (1993-08-01), Pritchard et al.
patent: 5484820 (1996-01-01), Mispreuve et al.
patent: 5538779 (1996-07-01), Mispreuve et al.
"Thermoformable FlexiblePolyurethane: A Unique Packaging Material", Wujcij, S.E., Yakimec, S.M., Smiecinski, T.M., 32nd Annual Polyurethane Technical/Marketing Conference, Oct. 1-4, 1989.
"MDI Slabstock Foams: A New Frontier", Elwell, R., and Thoen, J., 34th Annual Polyurethane Technical/Marketing Conference, Oct. 21-24, 1992.

Affiliated with

Also associated with

Rating

Energy absorbing 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 Energy absorbing polyurethane foams, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Energy absorbing polyurethane foams will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-206907