Process for the production of moldings of polyurethane foams

Details Process for the production of moldings of polyurethane foams Process for the production of moldings of polyurethane foams

1994-03-07

1995-06-20

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521130, C08J 934

Patent

active

054261244

ABSTRACT:
The present invention relates to a process for the production of polyurethane foam moldings having a compact surface skin and a density of at least 150 kg/m.sup.3 comprising foaming a polyurethane-forming starting mixture inside a mold. The starting mixture comprises organic blowing agents which correspond to one or both of the following general formulas:

REFERENCES:
patent: 4417002 (1983-11-01), Liessem
patent: 4473666 (1984-09-01), Casati et al.
patent: 4572740 (1986-02-01), Kretzschmann et al.
patent: 5025039 (1991-06-01), Neuhaus et al.
patent: 5064871 (1991-11-01), Sciangola
patent: 5143945 (1992-09-01), Bodnar et al.
patent: 5162385 (1992-11-01), Hartwig et al.
patent: 5374486 (1994-12-01), Clatty et al.

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