Expandable polyurethane powder preparations containing blowing a

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 60, 521 72, C08J 916, C08J 920

Patent

active

052526178

ABSTRACT:
The invention relates to expandable polyurethane powder preparations containing blowing agents and to their use for the production of foamed polyurethane moldings.

REFERENCES:
patent: 4940750 (1990-07-01), Roshauser et al.
patent: 4985490 (1991-01-01), Rosthauser et al.

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