Polyurethane foams from polyester precursor derived from adipic

Details Polyurethane foams from polyester precursor derived from adipic Polyurethane foams from polyester precursor derived from adipic

1979-05-07

1980-11-11

Cockeram, H. S.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 99, 525440, 528 80, 528307, 260 23, C08G 1814, C08G 1842

Patent

active

042334080

ABSTRACT:
A waste stream of nonvolatiles is recovered (NVR) as a by-product from the oxidation of cyclohexane to cyclohexanone and cyclohexanol in the process for making adipic acid. The NVR is partially dehydrated, and then reacted with an esterifying polyol to form a polyester polyol product which is useful in producing polyurethane foams. A particularly useful end-product is a rigid polyurethane foam having good cell structure and a density of at least 2.0 lb./cu. ft.

REFERENCES:
patent: 4048104 (1977-09-01), Svobada et al.

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