Patent ID: 7648542

Claim:
A static electricity dissipative filter media for a bag house filtration system operated at high temperatures in which the air stream passing through the bag house exceeds 300° F., the filter media comprising: a. a woven textile formed primarily from high temperature yarns selected from the group consisting of glass yarns, and yarns formed of PPS, aramid, P84, PTFE, and blends thereof capable of withstanding the high temperatures, but which generates static electricity in the presence of moving air; b. the yarns of the woven textile, coated with a first composition comprising a conductive component and a fluoropolymer; c. the yarns of woven textile also coated with a second composition on top of the first composition and also containing a fluoropolymer, the second composition serving to seal the first composition onto the yarns of the woven textile and to prevent clogging of the pores of the woven textile; d. whereby static electricity in the filter media is dissipated by the conductive component thus reducing excessive buildup of contaminating particles and enhancing cleaning.