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US 5,179,155 AGranted
Antistatic molded article of monomer-cast nylon
AssigneeNippon Polypenco Limited
InventorsSaburo Sano, Yoichi Ebata
Life of this patent
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Abstract
An antistatic molded article of monomer-cast nylon, which contains from 2 to 40% by weight of spherical or substantially spherical fine carbon particles having a specific gravity of from 1.4 to 1.6 and an average particle size of from 5 to 25 .mu.m.
Claims7
An antistatic molded article of monomer-cast nylon prepared by the steps comprising
- a) adding to monomer for nylon, an anionic polymerization catalyst, a polymerization initiator and from 2 to 40% by weight based on the molded article, of spherical or substantially spherical fine carbon particles having a specific gravity of from 1.4 to 1.6 and a particle size of from 10 to 25 .mu.m,
- b) casting the mixture into a mold, and
- c) polymerizing it at a temperature of from 120.degree. to 220.degree. C.
Dependencies are inferred from the claim text.