Production of rigid polyurethanes foams with reduced density

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...

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521164, 521167, C08G 1832

Patent

active

060403497

ABSTRACT:
A process for producing rigid polyurethane foams with reduced density by reacting

REFERENCES:
patent: 5096933 (1992-03-01), Volkert et al.
patent: 5428077 (1995-06-01), Lamberts et al.
patent: 5525641 (1996-06-01), White, III et al.

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