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US 5,164,253 AGranted
Water repellent fabrics
AssigneeShell Oil Company
InventorJohn L. Greak
Life of this patent
Estimating the term…
Abstract
A water repellant fabric and a process to produce that fabric is provided. The process comprises; providing a fabric substrate having sites reactive with polymeric functional groups; contacting the fabric substrate with a functional group containing polymer; removing unreacted functional group containing polymer; and recovering a water repellent fabric. The appearance, stiffness and texture of the treated fabric is similar to the untreated fabric and the hand of the treated fabric is excellent.
Claims6
A water repellent fabric comprising:
- a fabric substrate having reactive sites;
- and a functional group containing hydrophobic elastomeric polymer which is not removable from the fabric by toluene rinses wherein the functional group containing polymer comprises monomer units of conjugated diolefins and wherein the functionality is reactive with the fabric reactive sites.
Dependencies are inferred from the claim text.