Polyisocyanate based xerogels

Details Polyisocyanate based xerogels Polyisocyanate based xerogels

1998-03-31

2000-05-16

Foelak, Morton

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

521146, 521149, 521155, 521182, 521183, C08G 1884, C08G 1800

Patent

active

060638265

ABSTRACT:
Process for making polyisocyanate based xerogels by trimerisation of an organic polyisocyanate in an organic solvent in the presence of a (co)polymer containing an isocyanate-reactive group, gellation and drying of the obtained sol-gel.

REFERENCES:
patent: 5420168 (1995-05-01), Mayer et al.
patent: 5476878 (1995-12-01), Pekala
patent: 5478867 (1995-12-01), Tabor

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