Electrostatic dissipative material and process relating thereto

Details Electrostatic dissipative material and process relating thereto Electrostatic dissipative material and process relating thereto

1992-05-11

1993-08-17

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Forming electrical articles by shaping electroconductive...

252500, 252511, 264105, 26421121, 26433115, 26433118, 264327, 524495, 524586, B29C 4786

Patent

active

052366472

ABSTRACT:
The present invention relates to compositions comprising conductive particles and one or more polymers, particularly acid copolymer resins or derived ionomers, which can be extruded or heat formed into films or articles. More specifically, the method of the present invention is directed to a novel, non-uniform heating process, wherein the edge portions of a material is heated about 3-50 degrees Celsius hotter than the center or middle portions of the article or film during fabrication to thereby provide improved and substantially uniform electrostatic dissipative ("ESD") properties.

REFERENCES:
patent: 4288081 (1981-09-01), Sado
patent: 4548740 (1985-10-01), von Tomkewitsch et al.
patent: 4552687 (1985-11-01), Beacham et al.
patent: 4596669 (1986-06-01), Kleiner et al.
patent: 4784899 (1988-11-01), Ono et al.
patent: 4800126 (1989-01-01), Leonardi
patent: 5017260 (1991-05-01), Bardford
patent: 5112528 (1992-05-01), Malone

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