C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
9/46
C08K 11/00 (2006.01) B09B 3/00 (2006.01) D21H 17/01 (2006.01) D21J 1/16 (2006.01) D21J 1/20 (2006.01) E04C 2/16 (2006.01)
Patent
CA 1195053
ABSTRACT OF THE DISCLOSURE Novel products for coatings, insulation and packings and their processes of production are provided herein. These products are formed from paper-making sludges from decantation basins which contain a major amount, e.g. 70% of a mineral filler and a minor amount e.g. 30% of cellu- lose fibers. The composition comprises: 10-92% by weight of paper-making sludge; 3-75% by weight of an acrylic latex; 2-6% of a cross-linking agent for the acrylic latex, the cross-linking agent comprising a low molecular weight diamide and formaldehyde concentrate; and 5-70% of at least one of a mineral or organic filler. These compositions may be in the form of continuous sheets or molded panels, each of which may be dyed in situ. Thus, paper-making sludges are recovered and reused while simultaneously aiding the fight against pollution and degradation of the environment.
407269
Borden Ladner Gervais Llp
Papeteries de Jeand'heurs
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