Coated, heat shrinkable expanded polystyrene

Details Coated, heat shrinkable expanded polystyrene Coated, heat shrinkable expanded polystyrene

B - Operations, Transporting

32

B

117/202, 400/931

B32B 5/14 (2006.01) B05D 3/02 (2006.01) E04C 1/00 (2006.01)

Patent

CA 1267982

COATED, HEAT SHRINKABLE EXPANDED POLYSTYRENE Abstract of the Disclosure A composition and method for color coating an expan- ded polystyrene "drop-out" ceiling tile, by which its heat shrinking drop-out characteristic is preserved. The composi- tion comprises a water soluble salt of a polymer of acrylic acid as a film forming component, a plasticizing component, a pigment component and a pigment dispersing component such as clay. The ceiling drop-out and surface flame properties of the polyacrylate coated expanded polystyrene substrate compare favorably with those of uncoated expanded polystyrene used for the same purpose.

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