Coated, heat shrinkable expanded polystyrene

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

1983-03-25

1985-10-08

Lieberman, Paul

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524414, 524417, C08K 552

Patent

active

045461341

ABSTRACT:
A composition and method for color coating an expanded polystyrene "drop-out" ceiling tile, by which its heat shrinking drop-out characteristic is preserved. The composition 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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patent: 4128695 (1978-12-01), Kikuchi et al.
patent: 4233081 (1980-11-01), Plumet

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