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US 4,727,102 AGranted
Self-extinguishing polymeric products based on polyolefins
AssigneeV.A.M.P. S.r.l.
InventorLuciano Scarso
Life of this patent
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Abstract
Polyolefins which are made self-extinguishing by means of flame-retarding compositions comprising ammonium polyphosphate, melamine cyanurate and a hydroxyalkyl-derivative of isocyanuric acid at least partially in the form of a homopolymer.
Claims3
In a flame retardant additive composition for polyolefins of the type comprising ammonium polyphosphate and tris-(2-hydroxyethyl)-isocyanurate in the form of a homopolymer, the improvement comprising said composition additionally including melamine-cyanurate.
A self-extinguishing polyolefin composition, comprising:
- (A) 5-50% by weight of ammonium polyphosphate;
- (B) 1-25% by weight of a homopolymer of tris-(2-hydroxyethyl)-isocyanurate, the improvement comprising said polyolefin additionally including
- (C) 1-25% of melamine-cyanurate.
Dependencies are inferred from the claim text.