Coating composition for fibrous polyolefin sheets
AssigneeE. I. Du Pont de Nemours and Company
InventorDon M. Coates
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Abstract
A coating composition, in the form of an aqueous dispersion, which includes a water-insoluble wax, a nonionic surfactant and a water-insoluble resin, and optionally an antistat, is improved by the inclusion of finely divided particles of polytetrafluoroethylene in the dispersion to provide fibrous polyolefin sheets on which the coating is applied and dried with desirable blood-barrier characteristics. Such coated sheets are suitable for gowns and drapes in operating rooms.
Claims10
An improved coating composition in the form of an aqueous dispersion that contains 10 to 40% by weight of solids, which solids include effective amounts of a water-insoluble wax, a nonionic surfactant and a water-insoluble resin, the improvement comprising an effective amount of finely divided polytetrafluoroethylene particles which provides a fibrous polyolefin sheet on which the coating composition is applied and dried with improved blood-barrier characteristics.
Dependencies are inferred from the claim text.