Olefin or styrene (co)polymer, triazine polymer, ammonium phosphate and phosphorite
AssigneeEnichem S.p.A.
InventorsRoberto Pernice, Michele Checchin, Alessandro Moro, Roberto Pippa
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Abstract
Reinforced, flame-resistant thermoplastic composition consisting of: (A) a polymeric matrix consisting of an olefinic or styrene (co)polymer; (B) a quantity which is sufficient to give flame resistance properties, of an intumescent flame-retarding agent consisting of a mixture of (i) a compound containing nitrogen, insoluble in water, consisting of an oligomer or polymer of a derivative of 1,3,5-triazine and (ii) an ammonium phosphate, and (C) from 5 to 50% by weight with respect to the total composition of a phosphorite having a phosphorous content, expressed as BPL (Bone Phosphate of Lime) of more than 40% by weight.
Claims15
Reinforced, flame-resistant thermoplastic composition consisting of:
- (A) a polymeric matrix consisting of an olefin or styrene (co)polymer;
- (B) a quantity which is sufficient to give antiflame properties of an intumescent antiflame agent consisting of a mixture of an oligomer or a polymer of a derivative of 1,3,5-triazine and (ii) an ammonium phosphate, and
- (C) from 5 to 50% by weight with respect to the total composition of a phosphorite having a phosphorous content, expressed as BPL (Bone Phosphate of Lime), of more than 40% by weight.
Dependencies are inferred from the claim text.