Energy absorbing, water blown, rigid polyurethane foam articles

Details Energy absorbing, water blown, rigid polyurethane foam articles Energy absorbing, water blown, rigid polyurethane foam articles

1990-12-27

1993-02-16

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

264 51, 521112, 521174, C08J 912

Patent

active

051872048

ABSTRACT:
The invention relates to water blown, low density, energy absorbing rigid polyurethane foam articles which exhibit minimal springback or hysteresis characteristics. The articles produced from the foams of the present invention maintain a constant crush strength of material up to about 70% deflection and are useful in appropriate automotive applications such as side impact bolsters.

REFERENCES:
patent: 4883825 (1989-11-01), Westfall et al.
patent: 4970243 (1990-11-01), Jacobs et al.

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