Uniform polymeric coated interior cylinder surface

Details Uniform polymeric coated interior cylinder surface Uniform polymeric coated interior cylinder surface

1993-01-26

1995-12-12

Robinson, Ellis P.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

428 358, 428 3691, 428332, 428461, 220454, 220457, 220465, 220581, 220582, 220583, 220586, F16L 5700

Patent

active

054748461

ABSTRACT:
The present invention provides a method for coating the interior surface of a cylinder with a uniform, relatively thick layer of a polymeric material. The method includes the steps of dispersing a particulate polymeric material into the interior cavity of a cylinder. Any openings in the cylinder are then closed. The cylinder is then subjected to rotational movement while at the same time subjecting the cylinder to oscillation in a vertical plane. The polymeric material is then heated to a temperature above the melting point of the polymeric material, and maintained at that temperature for a time sufficient to coat the polymeric material onto the interior surface of the cylinder. The rotation and oscillation of the cylinder is then halted and the polymeric material is cooled.

REFERENCES:
patent: 1387451 (1921-08-01), Campbell
patent: 2294858 (1942-09-01), Allen
patent: 2419915 (1947-04-01), Priest et al.
patent: 4595614 (1986-06-01), Nanlist
patent: 4994308 (1991-02-01), Tarancon

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