Method of purifying cyclic dichlorophosphazenes containing trace

Details Method of purifying cyclic dichlorophosphazenes containing trace Method of purifying cyclic dichlorophosphazenes containing trace

1980-08-25

1982-04-27

Vertiz, O. H.

Chemistry of inorganic compounds

Phosphorus or compound thereof

Halogen containing

C01B 2510

Patent

active

043270638

ABSTRACT:
Cyclic dichlorophosphazenes containing trace amounts of protic impurities such as water are purified by treatment with boron trihalides under specified temperature and pressure conditions. The catalytic polymerization of the resultant cyclic dichlorophosphazenes, which are substantially free of protic impurities, is greatly improved.

REFERENCES:
patent: 4116891 (1978-09-01), Dieck et al.
patent: 4123503 (1978-10-01), Snyder et al.

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