C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/1709, 6/178
C08L 91/06 (2006.01) C03C 25/10 (2006.01) C08J 5/08 (2006.01) C08L 21/02 (2006.01)
Patent
CA 1076303
ABSTRACT OF THE DISCLOSURE The invention provides an aqueous wax emulsion suitable for incorporation in impregnants applied to tire-reinforcing glass fibre cords. The wax emulsion includes a paraffin wax having a melting point in the range of from about 140°F. to about 145°F. and a microcrystalline wax having a melting point in the range of from about 180°F. to about 185°F. The paraffin wax is present in a ratio of from about 2.7 to 3.7 parts by weight per part of the microcrystalline wax, and the waxes together comprise from about 45 to about 55 weight percent of the emulsion. The emulsion includes about 43 to about 48 weight percent water and, as emulsifiers, from about 1 to about 3 weight percent of an unsaturated fatty acid and from about 1 to about 3 weight percent of an aqueous solution of an inorganic base. From about 3.5 to about 5.5 weight percent (based upon the weight of the cured composition) of the wax emulsion is incorporated into a polymeric elastomer-based impregnant to form a composition for the coating of tire-reinforcing glass fibre cords.
230607
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