Fire retardant intumescent coating for lignocellulosic materials
AssigneeJ. M. Huber Corporation
InventorsFeipeng Liu, Weiming Zhu
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Abstract
A fire retardant coating composition for lignocellulosic materials which comprises expandable graphite particles, a absorbent material, a polymeric binder, a carbonific material, a blowing agent, and a wetting agent. The expandable graphite particles include from about 20 to about 95% by weight of the combined amount of the expandable graphite particles and the absorbent material. The polymeric binder comprises from about 5 to about 50% by weight of the combined amount of the polymeric binder, the expandable graphite particles, and the solid absorbent material.
Claims20
A fire retardant coating composition for lignocellulosic materials comprising:
- expandable graphite particles;
- an absorbent material for absorbing toxic gases emitted from said expandable graphite particles in the event that such particles are subjected to heat;
- a poymeric binder, and
- a wetting agent;
- said expandable graphite particles comprising from about 20 to about 95% by weight of the combined amount of said expandable graphite particles and said solid absorbent material, said polymeric binder comprising from about 5 to about 50% by weight of the combined amount of said polymeric binder, said expandable graphite particles, and said solid absorbent material.
A fire retardant coating for lignocellulosic materials comprising a first layer and a second layer;
- said first layer including expandable graphite particles, an absorbent material for absorbing toxic materials emitted from said expandable graphite particles in the event that such particles are subjected to heat, a polymeric binder, and a wetting agent, said expandable graphite particles comprising from about 20 to about 95% by weight of the combined amount of said expandable graphite particles and said solid absorbent material, said polymeric binder comprising from about 10 to about 50% by weight of the combined amount of said polymeric binder, said expandable graphite particles, and said solid absorbent material;
- said second layer comprising a pigment, a resin and a wetting agent.
Dependencies are inferred from the claim text.