Patent ID: 6267252
Filing Date: 2001-07-31
Classification: B01D,Y10T

Abstract:
A filtration medium comprising:a thin, calendered airlaid composite further comprising:a) pulp fibers;b) at least about 11% by weight bicomponent fiber comprising a first polymer component and a second polymer component, wherein said first polymer component melts at a temperature lower than the melting temperature of said second polymer component, and further wherein said bicomponent fibers are integrally mixed and evenly dispersed with said pulp fibers and said first polymer component is bonded to many of said pulp fibers and bicomponent fibers; andc) moisture;wherein percent by weight is based on the total weight of a) and b), and further wherein said airlaid composite has a drape stiffness of at least about 6 cm, and a tensile strength of at least about 4 kg.