Ligneous fibrous filler/olefinic plastic composite sheet for...

C - Chemistry – Metallurgy – 08 – L

Patent

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Details

C08L 23/00 (2006.01) C08J 5/18 (2006.01) C08K 3/34 (2006.01) C08L 23/02 (2006.01) C08L 23/10 (2006.01) C08L 51/06 (2006.01) C08L 97/00 (2006.01) C08L 97/02 (2006.01)

Patent

CA 2303842

A ligneous fibrous filler/olefinic plastic composite sheet for bonding which is obtained by mixing (1) 40 to 60 parts by weight of an olefinic plastic, (2) 60 to 40 parts by weight of a ligneous fibrous filler having a size of 40 to 110 mesh and a water content not exceeding 5 %, and (3) 0.5 to 5.0 parts by weight of an additive consisting mainly of polypropylene modified with maleic anhydride or of a derivative thereof and extruding the mixture into a sheet.

Selon cette invention, on obtient une charge de remplissage fibreuse ligneuse/feuille composite plastique oléfinique pour réaliser une liaison en mélangeant (1) 40 à 60 parties en poids d'un plastique oléfinique, (2) 60 à 40 parties en poids d'une charge de remplissage fibreuse ligneuse dont la taille est comprise entre 40 et 110 mailles et dont la teneur en eau n'excède pas 5 %, et (3) 0,5 à 5,0 parties en poids d'un adjuvant comprenant principalement du polypropylène modifié avec un anhydride maléique ou d'un dérivé de celui-ci, et à extruder le mélange pour obtenir une feuille.

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