Adhesive composition
AssigneeRoby's Enterprises, Inc.
InventorRay I. Roby
Life of this patent
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Abstract
A water impervious surfacing composition which includes cement and sand and a mixture of an aqueous coal tar emulsion and an aqueous polyvinyl acetate emulsion.
Claims4
A water-resistant adhesive composition which is essentially a mixture of an aqueous coal tar emulsion having a nonvolatile content by chemical analysis and an aqueous polyvinly acetate emulsion having a solids content by chemical analysis, the ratio of the coal tar nonvolatiles to polyvinyl acetate solids in said mixture ranging from about 0.3 to 2.5:1, and sufficient water to produce a ratio of water to combined coal tar nonvolatiles and polyvinyl acetate solids in said composition within the range of about 2 to 4:1.
A cement base, water impervious surfacing composition which is essentially a mixture of 1 part cement, 3 to 6 parts sand, from 0.75 to 3 water, nonvolatiles of an aqueous coal tar emulsion, and the solids of an aqueous polyvinyl acetate emulsion, said composition containing from 0.25 to 1.25 parts combined coal tar nonvolatiles and polyvinyl acetate solids, the ratio of coal tar nonvolatiles to polyvinyl acetate solids ranging from about 0.3 to 2.5:1.
Dependencies are inferred from the claim text.