Accession Number : ADD005190

Title :   Coatings That Reduce Flow Resistance and Turbulent Drag at Their Interface with Liquids.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Pearl,Harry A

Report Date : 09 May 1978

Pagination or Media Count : 5

Abstract : Coating formulations and method of making thereof for reducing the drag or friction encountered at the interface of a soluble drag reduction material coating and the liquid medium such as water in which the coating is being used. This is accomplished by adding various solid water-soluble materials as diluents and viscosity reducers, to a very high molecular weight drag reduction non-ionic polymer such as that of polyethylene oxide. The molded polymer with the added solid water-soluble material has less solubility and viscosity at and contiguous to the coating-water interface than that of the additive-free matrix under similar conditions. (Author)

Descriptors :   *Patents, *Coatings, *Formulations(Chemistry), Drag reduction, Flow rate, Fluid flow, Water soluble materials, Solids, Diluents, Viscosity, Molecular weight, Polyethylene plastics, Oxides

Subject Categories : Coatings, Colorants and Finishes
      Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE