C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
403/9
C08J 3/22 (2006.01) C08J 9/06 (2006.01) C08J 9/10 (2006.01)
Patent
CA 1239748
ABSTRACT Process for compounding polyphosphazene gum by (a) mixing a composition comprising a curable poly- phosphazene gum, filler, plasticizer and other conventional components but without any curing agent to form a non- curing masterbatach, (b) mixing a composition comprising a polyphosphazene gum and an excess amount of curing agent, at least 10 times that required to cure the phosphazene gum in this mixture and optionally containing other conventional components to form a concentrate and (c) blending the non-curing masterbatch from (a) with sufficient concen- trate from (b) to provide an amount of curing agent sufficient to cure the entire resultant mixture.
494548
Corporation Ethyl
Macrae & Co.
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