Rigid polyurethane foam and process for producing the same

Details Rigid polyurethane foam and process for producing the same Rigid polyurethane foam and process for producing the same

1989-01-19

1990-08-07

Kight, John

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521112, 521115, 521129, 521131, 521159, 521164, 521167, 521173, 521175, 521177, C08G 1830

Patent

active

RE0332909

ABSTRACT:
Rigid polyurethane foams produced by reacting a polyol component having a special composition with an isocyanate component in the presence of a blowing agent, a reaction catalyst and a foam stabilizer with a mold release time of as short as 5.5 minutes or less, have remarkably low thermal conductivity of 12.5.times.10.sup.-3 Kcal/m.hr..degree.C. or less and a low density and are suitable as heat insulating materials for refrigerators and the like.

REFERENCES:
patent: 4500656 (1985-02-01), Rasshoffer et al.

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