Production of rigid polyurethane foams

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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Details

521170, 528 48, 528 76, 528 77, 528 80, 528 85, C08G 1800

Patent

active

055524508

ABSTRACT:
A process for the production of rigid polyurethane foams involves reacting

REFERENCES:
patent: 4897431 (1990-01-01), Scherzer et al.

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