Halogenated polyether polyols and polyurethane foams produced th

Details Halogenated polyether polyols and polyurethane foams produced th Halogenated polyether polyols and polyurethane foams produced th

1977-11-14

1979-11-06

Mars, Howard T.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568674, 568676, 521174, 521126, 521129, C07C 4302, C07C 4312, C08J 900

Patent

active

041737105

ABSTRACT:
New halogenated polyether polyols for the production of permanently fire-proof polyurethane foams, said halogenated polyether polyols corresponding to the general formula: ##STR1## in which z represents a number between 2 and 6, x and y represent numbers between 0 and 12 such that the mean value x+y per chain is between 0 and 12, and that z (x+y), in which x+y represents the mean value of x+y in the entire molecule, is between 1 and 72, and Z represents the residue of a halogenated polyhydroxyl compound initiator and comprises a C.sub.2 to C.sub.6 halogenated aliphatic radical of valence z, the halogen being selected from the group consisting of chlorine and bromine.

REFERENCES:
patent: 1875312 (1932-08-01), Yohtz
patent: 2135271 (1938-11-01), Bakar
patent: 2236919 (1941-04-01), Reynhart
patent: 2575558 (1951-11-01), Hewey et al.
patent: 2581464 (1952-01-01), Zech
patent: 3475499 (1969-10-01), Winnick
patent: 3576890 (1971-04-01), Binning

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