Production of rigid foams based on isocyanate

Details Production of rigid foams based on isocyanate Production of rigid foams based on isocyanate

1996-11-22

1997-11-04

Foelak, Morton

Compositions

Preservative agents

Anti-corrosion

521116, C08K 300, C08J 914

Patent

active

056840926

ABSTRACT:
In a process for producing rigid foams based on isocyanate, the blowing agent used is a mixture of at least one low-boiling hydrocarbon having from 3 to 7 carbon atoms, low molecular weight monohydric alcohols containing primary or secondary hydroxyl groups and having from 1 to 4 carbon atoms, and, if desired, the carbon dioxide formed from water and isocyanate. The rigid foams can be used as insulation material.

REFERENCES:
patent: 3620987 (1971-11-01), McLaughlin et al.
patent: 3887501 (1975-06-01), Narayan et al.
patent: 3922238 (1975-11-01), Narayan et al.
patent: 4029611 (1977-06-01), Cenker et al.
patent: 5039442 (1991-08-01), Swan et al.
patent: 5336696 (1994-08-01), Ashida
patent: 5464562 (1995-11-01), Patterson
patent: 5470501 (1995-11-01), Fishback et al.
patent: 5484817 (1996-01-01), Patterson
patent: 5504125 (1996-04-01), Fishback et al.
Rudolf Brdicka, Grundlagen Der Physikalischen Chemie, 4th Edition, Veb Deutscher Verlag Der Wissenschaften, Berlin 1963, p. 855.

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