Flame-retardant composition
AssigneeFSIT Services LLC
InventorsFernando Surraco, Daniel Davidson
Life of this patent
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Abstract
A flame-retardant thermoplastic resin composition comprising about 20% to about 30% polypropylene; about 50% to about 65% Magnesium Hydroxide; and about 3% to about 8% polybutene. Articles of manufacture made by this composition and methods making these articles of manufacture.
Claims4
An article of manufacture comprising a flame-retardant thermoplastic resin composition comprising about 20% to about 30% by weight polypropylene;
- about 50% to about 65% by weight Magnesium Hydroxide;
- and about 3% to about 8% by weight polybutene, wherein said article of manufacture is a plastic connector in heating, ventilation, and air conditioning (HVAC) duct assembly or a plastic plenum conduit, wherein said article of manufacture has the following characteristics:
- a. A peak rate of heat release of 100 kW or less;
- b. A peak normalized optical density of 0.50 or less;
- and
- c. An average normalized optical density of 0.15 or less.
An article of manufacture comprising a flame-retardant thermoplastic resin composition comprising about 20% to about 30% by weight polypropylene;
- about 50% to about 65% by weight Magnesium Hydroxide;
- and about 3% to about 8% by weight polybutene, wherein said article of manufacture is an insulated cable, an insulated electric wire, or a wiring harness, wherein said article of manufacture has the following characteristics:
- a. A peak rate of heat release of 100 kW or less;
- b. A peak normalized optical density of 0.50 or less;
- and
- c. An average normalized optical density of 0.15 or less.
A method of making a flame-retardant article of manufacture, comprising preparing a flame-retardant article of manufacture using a flame-retardant thermoplastic resin composition comprising about 20% to about 30% by weight polypropylene;
- about 50% to about 65% by weight Magnesium Hydroxide;
- and about 3% to about 8% by weight polybutene, wherein said article of manufacture is a plastic connector in heating, ventilation, and air conditioning (HVAC) duct assembly or a plastic plenum conduit, wherein said article of manufacture has the following characteristics:
- a. A peak rate of heat release of 100 kW or less;
- b. A peak normalized optical density of 0.50 or less;
- and
- c. An average normalized optical density of 0.15 or less.
A method of making a flame-retardant article of manufacture, comprising preparing a flame-retardant article of manufacture using a flame-retardant thermoplastic resin composition comprising about 20% to about 30% by weight polypropylene;
- about 50% to about 65% by weight Magnesium Hydroxide;
- and about 3% to about 8% by weight polybutene, wherein said article of manufacture is an insulated cable, an insulated electric wire, or a wiring harness, wherein said article of manufacture has the following characteristics:
- a. A peak rate of heat release of 100 kW or less;
- b. A peak normalized optical density of 0.50 or less;
- and
- c. An average normalized optical density of 0.15 or less.
Dependencies are inferred from the claim text.