초록 ▼

Provided is a strong, flexible filter element comprising a wet laid non-woven element of glass fibers, synthetic short fibers, and polymer fibrids having a softening point below the softening point of the short fibers. In the filter element, the glass fibers are bound to the synthetic short fibers,

Provided is a strong, flexible filter element comprising a wet laid non-woven element of glass fibers, synthetic short fibers, and polymer fibrids having a softening point below the softening point of the short fibers. In the filter element, the glass fibers are bound to the synthetic short fibers, e.g., aromatic polyamide short fibers such as poly(m-phenylene isophthalamide) short fibers, by the polymer fibrids, e.g., cellulose acetate fibrids, which act as a binder. The filter element exhibits excellent chemical resistance and a usefulness in removing particulates from gases at temperatures below 400°F.

대표청구항 ▼

A filter element of high strength and good flex and permeability comprising a non-woven mat of (i) glass fibers, (ii) synthetic short fibers and (iii) polymer fibrids having a softening point below the softening point of said short fibers, said short fibers being bound to said glass fibers by the po

A filter element of high strength and good flex and permeability comprising a non-woven mat of (i) glass fibers, (ii) synthetic short fibers and (iii) polymer fibrids having a softening point below the softening point of said short fibers, said short fibers being bound to said glass fibers by the polymer fibrids. A system for removing particulates from a gas comprising a filtration housing having an inlet and an outlet, said inlet being operatively connected to receive said gas, a passage within said housing from said inlet to said outlet and a filter element of claim 1 completely across said passage whereby said gas passing from said inlet to said outlet passes through said filter element.