Flame retardant thermoplastic composition and moulded part made thereof
OwnerAngelika Schmidtinventor
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Abstract
The invention relates to a flame retardant thermoplastic composition comprising (i) a thermoplastic elastomer comprises a copolyester elastomer comprising (a) hard blocks and soft blocks consisting of segments of hard and soft polyester polymers linked by urethane groups and/or (b) hard blocks consisting of segments of a hard polyester polymer and soft blocks consisting of a long chain aliphatic dicarboxylic acid residue and/or a long chain aliphatic diol residue, wherein the hard and soft blocks are optionally linked by urethane and/or ester groups and (ii) a halogen free flame retardant system comprises a nitrogen containing flame retardant. The invention further relates to moulded parts made from the said composition.
Claims10
Flame retardant thermoplastic composition comprising polymer comprising a thermoplastic elastomer and a halogen free flame retardant system characterized in that
- (i) the thermoplastic elastomer comprises a copolyester elastomer comprising (a) hard blocks consisting of segments of hard polyester polymers and soft blocks consisting soft polyester polymers linked by urethane groups and/or (b) hard blocks consisting of segments of a hard polyester polymer and soft blocks consisting of a long chain aliphatic dicarboxylic acid residue, a long chain aliphatic amine and/or a long chain aliphatic diol residue, wherein the hard and soft blocks are optionally linked by amide, ester and/or urethane groups and
- (ii) the halogen free flame retardant system comprises a nitrogen containing flame retardant.
Dependencies are inferred from the claim text.