Halogen-free flame retardant compositions with improved tensile properties
AssigneeDow Global Technologies LLC
InventorsYichi Zhang, Marcio Teixeira Alves, Bharat I. Chaudhary
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Abstract
A composition for use in jacketing or insulation materials that has from 42 to 54 percent by weight of a halogen-free flame retardant, from 26 to 46 percent by weight of an ethylene alkyl acrylate copolymer, such as ethylene ethyl acrylate, optionally from 0 to 15 percent by weight of an ethylene-based polymer, optionally from 0 to 12 percent by weight of a coupling agent, and optionally from 0 to 1 percent by weight of an antioxidant. A cable insulation layer, a cable protective outer jacket, a cable core sheath, and cable may include the jacketing material composition.
Claims13
A composition comprising:
- 42 to 54 percent by weight of a halogen-free flame retardant;
- 26 to 46 percent by weight of an ethylene alkyl acrylate copolymer;
- 1 to 15 percent by weight of an ethylene-based polymer;
- 0 to 12 percent by weight of a coupling agent;
- 0 to 1.0 percent by weight of an antioxidant;
- and
- 1 to 5 parts by weight of a silicone oil for each 100 parts by weight of the composition, wherein the composition exhibits a tensile elongation greater than 300%, a tensile strength greater than 1,450 psi, and a relative viscosity at 160° C. and stress of 16,000 Pa, not to exceed 4.0.
Dependencies are inferred from the claim text.