C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
C08J 3/02 (2006.01) C08L 1/00 (2006.01) C08L 5/08 (2006.01)
Patent
CA 2599423
The invention relates to a composite material based on water-insoluble polysaccharide. The composite material comprises of particles of at least one light scattering material, the surface of which is essentially covered by at least one water-insoluble polysaccharide material. The invention also relates to a method for the preparation of the composite material. Further, the invention relates to a paper and board manufacturing process, in which said composite materials are employed as manufacturing materials. Both highly organic end products with exceptional heat capacities as well as cheap high filler end products can be manufactured. The invention also relates to a method for improving retention of light scattering filler material in the manufacture of paper and board.
Matériau composite à base de polysaccharide insoluble dans l'eau comprenant au moins un matériau à dispersion de la lumière dont la surface est essentiellement recouverte par ledit matériau. L'invention concerne également le procédé de fabrication de ce matériau composite. Par ailleurs, cette invention concerne un procédé de fabrication de papier et de carton dans lequel entrent lesdits matériaux composites. Il est possible de fabriquer aussi bien des produits à forte teneur en substances organiques dotés de capacités thermiques exceptionnelles que de produits bon marché à forte charge. L'invention concerne en outre un procédé propre à améliorer la capacité de dispersion de la lumière du matériau de charge lors du processus de fabrication.
Aksela Reijo
Karvinen Saila Marjatta
Myllymaki Vesa
Sundquist Anna
Gowling Lafleur Henderson Llp
Kemira Oyj
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