Expanded polystyrene bead having functional skin layer,...

Details Expanded polystyrene bead having functional skin layer,... Expanded polystyrene bead having functional skin layer,...

2006-10-31

2006-10-31

Le, H. Thi (Department: 1773)

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Particulate matter

C264S121000, C264S237000, C264S300000, C264S331110, C427S222000, C427S340000

Reexamination Certificate

active

07128973

ABSTRACT:
Expanded polystyrene particles having a polyvinyl acetate resin-based functional skin layer, and a process thereof are provided. The particle includes an inner expanded polystyrene layer; and a functional skin layer. The inner expanded polystyrene layer is formed by heating and expanding an expandable polystyrene bead or pellet, and the functional skin layer is formed by coating the surface of the inner expanded polystyrene layer with a functional coating composition having 10 to 99 wt % of a vinyl acetate based polymer and 0.1 to 90 wt % of at least one functional additive.

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PCT Written Opinion of the International Searching Authority (PCT/KR2004/000182) Dated: Oct. 25, 2004.
PCT International Search Report (PCT/KR2004/000182) Dated. Oct. 25, 2004.

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