Moulding paste

Details Moulding paste Moulding paste

C - Chemistry, Metallurgy

08

L

400/1, 400/1200,

C08L 1/00 (2006.01) C08J 9/00 (2006.01) C08L 89/00 (2006.01) C08L 101/00 (2006.01)

Patent

CA 1147076

A B S T R A C T M O U L D I N G P A S T E A moulding paste, comprising an aqueous dispersed suspension of a fibrous or particulate material, particularly wood fibres, and a water-binding material such as starch, which after a possible dewatering binds the remaining water. The paste can be used for plastic forming by techniques such as extrusion or injection moulding without de-watering occu?ing in the die or nozzle, The Forming is normally carried out at concentration from 10 to 50%, which is a drastic improvement compared to the concentarions of 0.2 to 2.0% used for conventional forming of wood fiber articles as in papermaking. Rigid, hollow articles such as cartons, tubes, paper plates and trays can be made in one manufacturing step - not as ? by conversion of flat sheets.

339975

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