Extrudate and extrusion process

Details Extrudate and extrusion process Extrudate and extrusion process

B - Operations, Transporting

29

C

B29C 47/00 (2006.01) B29C 47/12 (2006.01)

Patent

CA 2152046

An extrudate of a vinyl chloride resin composition comprising a copolymer of vinyl chloride with an alkyl ester or an .alpha.-olefin, which extrudate has a cross-sectional shape varied along the direction of extrusion by varying the shape of the orifice of an extruder. The composition can well cope with the shape variation to give an extrudate at a good productivity.

Un produit d'extrusion d'une résine de chlorure de vinyle comprend un copolymère de chlorure de vinyle et un alkyl ester ou une .alpha.-oléfine. Ce produit d'extrusion présente une section transversale qui varie dans le sens de l'extrusion et s'obtient en modifiant la forme de l'orifice d'une extrudense. Cette composition se prête facilement à cette variation de forme pour donner un produit d'extrusion avec un bon rendement.

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