Color stabilization of flame retardant

Compositions – Fire retarding – Intumescent

Patent

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Details

106 1818, 544195, 524711, 524787, C09D 518, C09K 328, C07D25170

Patent

active

043281320

ABSTRACT:
Undesirable color formation during the preparation of a cured intumescent flame retardant is minimized by including a color stabilizing amount of at least one of certain metal phosphites, hypophosphites, sulfites and bisulfites.

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patent: 3855134 (1974-12-01), Green et al.
patent: 4010137 (1977-03-01), Brady
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