Surface spray coating of latex foams
AssigneeBorg-Warner Corporation
InventorRichard Pollock
Life of this patent
Estimating the term…
Abstract
Low density latex foams are improved in abrasion resistance, wear character and water resistance by spray coating the surface with a coating composition comprising a carboxylated styrene butadiene latex and from 5 to 100 parts per hundred parts latex solids of a hydrocarbon wax.
Claims5
In a latex foam-backed fabric structure comprising a fabric having coated on the undersurface thereof an elastomeric latex foam, the improvement wherein the surface of the foam is spray coated with from 20 to 90 g/sq. meter of a coating latex composition comprising a carboxylated styrene-butadiene latex and from 5 to 100 parts by weight based on 100 parts of latex solids of a hydrocarbon wax.
A method for providing a latex foam structure having an abrasion and water resistant surface comprising the steps of (1) providing a wet latex foam structure having a skinned surface, (2) spray coating said skinned surface with from 20 to 90 g/sq meter of a coating latex composition comprising a carboxylated styrene-butadiene latex and from 5 to 100 parts by weight, based on 100 parts of latex solids, of a hydrocarbon wax, and (3) air drying the resulting coated latex foam structure at an elevated temperature.
Dependencies are inferred from the claim text.