Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1975-04-11
1977-05-24
Czaja, Donald E.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
260928, 260931, 260969, C07F 909, C07F 938, C08G 1806
Patent
active
040254682
ABSTRACT:
Polyurethanes such as polyol based polyurethanes are rendered flame resistant by incorporating therein 1-25 parts per hundred parts by weight of a mixture of halogenated phosphoric esters consisting essentially of at least two compounds of the formula: ##STR1## wherein R.sup.1 is a C.sub.1 -C.sub.3 alkyl or an R.sup.2 X group, R.sup.2 is a C.sub.2 -C.sub.3 alkylene group and R.sup.3 and R.sup.4 are independently selected from the group consisting of R.sup.2 X, wherein X is H, or a halogen; ##STR2## wherein R.sup.5 and R.sup.6 are independently selected from the group consisting of R.sup.1, R.sup.2 X and ##STR3##
REFERENCES:
patent: 2807636 (1957-09-01), Buls et al.
patent: 3027349 (1962-03-01), Bahr et al.
patent: 3042701 (1962-07-01), Birum
patent: 3471592 (1969-10-01), Friedman
patent: 3730917 (1973-05-01), Hesskamp
patent: 3850859 (1974-11-01), Wortmann et al.
Gefter--Organophosphorus Monomers & Polymers (Assoc. Techn. Services) (Glen Ridge, N.J.), p. 37 (1962).
Bisel Roberto
Modena Mario
Czaja Donald E.
Fletcher H. H.
Montedison Fibre S.p.A.
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