C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
9/46
C08F 8/00 (2006.01) D21H 17/34 (2006.01) D21H 17/37 (2006.01) D21H 17/43 (2006.01) D21H 21/54 (2006.01)
Patent
CA 1118165
ABSTRACT OF THE DISCLOSURE High strength composites prepared by (A) mixing (1) an aqueous slurry of negatively charged, water- -insoluble natural or synthetic fiber such as cellulose fiber, (2) a latex having a high density of pH independent cationic charges, such as sulfonium, bound at or near the particle surface, (3) a water-soluble, high molecular weight anionic polymer co-additive, such as a hydrolyzed polyacrylamide and optionally (4) conventional wet end additives; (B) draining water from the resulting aqueous suspension and (c) drying by heating. 18,430A-F
309460
Foster William A.
Pickelman Dale M.
Wessling Ritchie A.
Smart & Biggar
The Dow Chemical Company
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