Open-celled rigid foams based on isocyanate

Details Open-celled rigid foams based on isocyanate Open-celled rigid foams based on isocyanate

1998-09-24

1999-03-09

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521131, G08G 1834

Patent

active

058801685

ABSTRACT:
In a process for producing open-celled rigid foams by reacting
a) polyisocyanates with
b) compounds containing hydrogen atoms which are reactive toward isocyanates, in the presence of
c) water,
d) if desired, organic compounds acting as physical blowing agents,
e) catalysts, auxiliaries and/or additives,
the compounds containing reactive hydrogen atoms used are substances having the structure I: ##STR1## where m is 0-15

REFERENCES:
patent: 4607064 (1986-08-01), Kuhn et al.
patent: 4789690 (1988-12-01), Milovanovic-Lerik et al.

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