Filled-polystyrene laminates

Details Filled-polystyrene laminates Filled-polystyrene laminates

B - Operations, Transporting

32

B

154/138, 154/123

B32B 25/08 (2006.01) B32B 5/18 (2006.01) B32B 27/30 (2006.01) C08J 3/22 (2006.01) C08L 25/06 (2006.01)

Patent

CA 1067388

ABSTRACT OF THE DISCLOSURE Thermoplastic polystyrene laminates are disclosed, one of the layers of which comprises a filled polystyrene composition containing from about 5 to about 50 of filler, such as calcium carbonate, clay, asbestos, etc. The filled polystyrene composition is prepared from a filled poly- styrene masterbatch of impact polystyrene, filler, rubber and mineral oil, cut back by mixing with other polystyrene, either crystal or impact polystyrene. Laminates may be prepared by coextrusion. The filled polystyrene layer may be foamed. The laminates may be used for making formed articles such as cups, containers, trays, plates, sheets, etc.

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