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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521 49, 521137, 521170, 521174, C08J 1104, C08G 1804

Patent

active

060874090

ABSTRACT:
In a process for producing rigid polyurethane foams by reacting

REFERENCES:
patent: 4511680 (1985-04-01), Niederdellmann et al.
patent: 5300530 (1994-04-01), Machado et al.
patent: 5357006 (1994-10-01), Gassan et al.
patent: 5556889 (1996-09-01), Naber et al.

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