Stock material or miscellaneous articles – Pile or nap type surface or component – Particular backing structure or composition
Patent
1986-04-07
1987-07-07
McCamish, Marion C.
Stock material or miscellaneous articles
Pile or nap type surface or component
Particular backing structure or composition
427 58, 427122, 427123, 4271261, 427209, 427289, 427290, 427316, 4273722, 428922, B32B 300
Patent
active
046786945
ABSTRACT:
An antistatic or electrically conductive carpet tile and a method of producing such carpet tile, which method comprises forming a plurality of separate columns of electrically conductive material, extending generally perpendicularly between the back surface of the carpet tile and the face of the carpet tile, the electrically conductive columns formed in a nonelectrically conductive thick backing layer, so as to provide an electrically conductive path from the face of the carpet to ground. An antistatic carpet which comprises a fibrous face secured to a primary backing layer, an electrically conductive precoating layer on the backing layer, and a nonelectrically conductive backing layer and a plurality of columns of electrically conductive material, such as electrically conductive polymeric ink, extending from the back surface of the carpet tile to the nonelectrically conductive backing layer and into contact with the electrically conductive precoat layer or face.
REFERENCES:
patent: 4101689 (1978-07-01), Wienand
Crowley Richard P.
Heuga Holding b.v.
McCamish Marion C.
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