Hydrophilic polyvinylbutyral alloys
AssigneeHydromer, Inc.
InventorWalter S. Creasy
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Abstract
A hydrophilic polymer blend is disclosed which comprises a first polymer component which is an organic solvent-soluble, thermoplastic polyvinylbutyral (PVB) and a second polymer component which is a hydrophilic poly(N-vinyl lactam), e.g., a water soluble polyvinylpyrrolidone. The blend demonstrates slipperiness in aqueous environments and, among other applications, is useful in low-friction coatings for a wide variety of substrates. A method for providing the coatings is also described.
Claims8
A stable hydrophilic polymer blend which comprises a first polymer component which is an organic solvent soluble performed thermoplastic, polyvinylbutyral (PvB) resin and a second polymer component which is a hydrophilic poly (N-vinyl lactam), said blend having been prepared in a solvent selected from the group consisting of isopropanol, methyl ethyl ketone, diacetone alcohol, ethyl lactate, methylene chloride, trichloroethylene, N-methyl pyrrolidone, mono and di-ethylene glycol ethers, and blends thereof, and said hydrophilic polymer blend being capable of withstanding exposure to water without significant loss of said hydrophilic poly (N-vinyl lactam).
The polymer blend of claim in the form of a solid.
Dependencies are inferred from the claim text.