Coated, heat shrinkable expanded polystyrene

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

1985-02-12

1987-02-03

Page, Thurman K.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

427243, 427245, 4273935, 4283199, 523094, 52515, B32B 514, B05D 302, E04C 100

Patent

active

046408622

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.

REFERENCES:
patent: 3360415 (1967-12-01), Hellman et al.
patent: 3467569 (1969-09-01), Weber et al.
patent: 4091154 (1978-05-01), Hirai
patent: 4128695 (1978-12-01), Kikuchi et al.
patent: 4178273 (1979-12-01), Brown

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