Polyol combination

Details Polyol combination Polyol combination

1999-01-19

2000-04-18

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

524366, 524377, 524766, C08G 1806

Patent

active

060516240

ABSTRACT:
Polyol combination for the preparation of energy absorbing foam is provided, the polyol combination including (a) from 30 to 70 parts by weight of a polyol having a molecular weight in the range of from 2500 to 6500, a functionality in the range of from 2.5 to 6 and a primary hydroxyl content of at least 40%, optionally with a polymer stably dispersed therein; and (b) from 70 to 30 parts by weight of a rigid polyol having a molecular weight in the range of from 300 to 1000, a functionality in the range of from 2.5 to 6 and a hydroxyl value in the range of from 200 to 600, to a total of 100 parts by weight of (a) and (b). Using this combination, foams with a density of less than 50 kg/m.sup.3 are possible.

REFERENCES:
patent: 5523333 (1996-06-01), Fishback et al.
patent: 5684057 (1997-11-01), White, III et al.

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