Low density flexible integral skin polyurethane systems using th

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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264 455, 264DIG6, 521 54, 521137, C08J 924, C08J 932, C08J 934

Patent

active

052603431

ABSTRACT:
It was found that a combination of thermoplastic microspheres containing a volatile hydrocarbon and water could be used as effective co-blowing/density reducing agents in low density, integral skin polyurethane foams.

REFERENCES:
patent: 3615972 (1971-10-01), Morehouse, Jr. et al.

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