C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
C08K 3/32 (2006.01) C08F 8/40 (2006.01) C08F 8/44 (2006.01) C08K 5/49 (2006.01) C08K 9/00 (2006.01) C08K 13/02 (2006.01) C08L 101/00 (2006.01)
Patent
CA 2146558
A non-halogen containing flame-retardant additive comprising a salt of an inorganic phosphorus-containing acid and a polymeric compound which is a homopolymer or copolymer and comprises a linear backbone formed of at least 10 repeat units and contains a plurality of basic nitrogen functionalities. The additives are suitable for use in polymer materials either alone or in combination with other flame-retardant additives, resulting in an additive having reduced smoke generation, reduced evolution of corrosive gases and improved flame-retarding properties. The flame-retardant additives of the invention are compatible with a variety of thermoplastic and thermoset polymers applicable for wire and cable insulation, heat recoverable items, electrical tape and moulded parts. The additives may also be formulated as a dispersion into coating compositions optionally comprising addi- tional ingredients such as other flame-retardants, fillers, colourants etc. In addition the additives may be employed in caulks, mastics and sealants.
Lindsay Alan
Parsons Keith P.
Minnesota Mining And Manufacturing Company
Smart & Biggar
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