FIELD: devices for protecting books or documents.
SUBSTANCE: protecting member comprises substrates, planar or dispersed metallized coverings with a definite specific resistance, and conducting polymers with a definite specific resistance. The difference between the specific resistances exceeds 100 KOm/m.
EFFECT: enhanced reliability.
14 cl, 8 dwg, 7 ex
Authors
Dates
2006-09-20—Published
2002-02-28—Filed