Composite microsphere and lubricant mixture

Details Composite microsphere and lubricant mixture Composite microsphere and lubricant mixture

1993-06-22

1995-06-06

Brunsman, David

Compositions: coating or plastic

Coating or plastic compositions

Pore forming

501 32, C09D 500, C09D 534

Patent

active

054218748

ABSTRACT:
A composite mixture of spherical objects and lubricant useful for its cushioning properties is disclosed and claimed. The composite mixture may be composed of microspheres typically less than 2000 microns in diameter with inert atmospheres sealed within their interiors and any of a variety of lubricants facilitating sliding and rolling movement between microspheres. Typically the composite mixture includes lubricant in a quantity sufficient to substantially coat the exterior surface of essentially all of the spherical objects, but in a quantity less than would cause dispersion of the spherical objects in the lubricant sufficient to physically separate the spherical objects from each other and substantially reduce the sliding and rolling contact of the spherical objects with each other. A low specific gravity, low thermal mass, low coefficient of heat transfer, insulative and flotation qualities are provided by the invention. The composite mixture may be contained in fluid-tight confinement within a flexible bladder.

REFERENCES:
patent: 3407406 (1968-10-01), Werner
patent: 3529368 (1970-09-01), Canfield
patent: 3552044 (1971-01-01), Wiele
patent: 4083127 (1978-04-01), Hanson
patent: 4252910 (1981-02-01), Schaefer
patent: 4467053 (1984-08-01), Markle
patent: 4728551 (1988-03-01), Jay

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