Rigid polyurethane foam, process for producing the same, and hea

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

1989-10-21

1991-07-23

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521159, 521175, C08G 1814

Patent

active

050344250

ABSTRACT:
A rigid polyurethane foam produced by reacting a special polyol component with an isocyanate component in the presence of a blowing agent containing water in an amount of 2 to 3.5% by weight per 100% by weight of the polyol component is excellent in fluidity with balanced excellent properties.

REFERENCES:
patent: 4230824 (1980-10-01), Nodelman

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