Polyol compositions and rigid polyisocyanate based foams contain

Details Polyol compositions and rigid polyisocyanate based foams contain Polyol compositions and rigid polyisocyanate based foams contain

1995-07-25

1996-06-04

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521174, C08G 1800

Patent

active

055233333

ABSTRACT:
There is provided a polyol composition which comprises a
a) compound having at least two isocyanate reactive hydrogens, at least one of which is a polyoxyalkylene polyether polyol,
b) 2-chloropropane, and,
c) a C.sub.4 -C.sub.6 aliphatic hydrocarbon.
There is also provided a rigid polyurethane foam made with the polyol composition. The 2-chloropropane acts to solubilize the C.sub.4 -C.sub.6 aliphatic hydrocarbon in the polyols.

REFERENCES:
patent: 4898893 (1990-02-01), Ashida
patent: 5064872 (1991-11-01), Monstrey et al.
patent: 5096933 (1992-03-01), Volkert
patent: 5132332 (1992-07-01), Wallaeys et al.
"Hyorocarbons Provide Zero ODP and Zero GWP Insulation For Household Refrigeration," Polyur Ethanes World Congress 1993-Oct. 10-13, 1993, pp. 33-39.

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