Halogen-free, flame retardant composition comprising crosslinked silane-g-EVA
AssigneeDow Global Technologies LLC
InventorsWilson Xiao Wei Yan, Given Jing Chen, Lotus Hua Huang, David Hong Fei Guo
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Abstract
Halogen-free, flame retardant compositions comprising in weight percent based on the weight of the composition: A. 20 to 60% TPU/Si-g-EVA polymer blend in which the Si-g-EVA is crosslinked, B. 1 to 25% organic phosphate ester, C. 30 to 60% metal hydrate, and D. 0.1 to 10% epoxidized novolac. Optionally, the compositions further comprise in weight percent based on the weight of the composition, one or more of: E. 0.01 to 0.5% anti-dripping agent, F. 0.1 to 2% additive; and G. 0.1 to 5% filler.
Claims10
A halogen-free, flame retardant composition comprising in weight percent based on the weight of the composition:
- A. 20 to 60% of a thermoplastic polyurethane/silane-grafted ethylene vinyl acetate (TPU/Si-g-EVA) polymer blend in which the Si-g-EVA is crosslinked and has a VA content of no greater than 30 wt %, wherein the thermoplastic polyurethane and silane-grafted ethylene vinyl acetate are phase separated,
- B. 1 to 25% of an organic phosphate ester,
- C. 30 to 60% of a metal hydrate, and
- D. 0.1 to 10% of an epoxidized novolac.
Dependencies are inferred from the claim text.