Filter media and articles including dendrimers and/or other components
AssigneeHollingsworth & Vose Company
InventorsDavid F. Sealey, Stuart Williams
Life of this patent
Estimating the term…
Abstract
Articles such as filter media, which include dendrimers and/or other components, are provided. The filter media may further include a water repellant (e.g., a fluorinated species) to impart desirable properties to the media such as high water repellency. The filter media may also have a high efficiency as a function of pressure drop (i.e., high gamma values). In some embodiments, the filter media includes a fiber web which may be formed of various components such as glass fibers. The fiber web can also include additional components such as synthetic fibers, binder components, as well as other additives. The media may be incorporated into a variety of filter element products.
Claims42
An article, comprising:
- a fiber web comprising a dendrimer, a fluorinated polymer, and a plurality of glass fibers having an average diameter between about 0.01 and about 10 microns,
- wherein the fiber web has a basis weight between about 30 and about 400 gsm, an overall thickness between about 100 microns and about 5000 microns, and an overall pressure drop between about 5 Pa and about 700 Pa.
A method, comprising:
- passing a fluid through a filter media comprising a fiber web comprising a dendrimer, a fluorinated polymer, and a plurality of glass fibers having an average diameter between about 0.01 and about 10 microns,
- wherein the fiber web has a basis weight between about 30 and about 400 gsm, an overall thickness between about 100 microns and about 5000 microns, and overall pressure drop between about 5 Pa and about 700 Pa.
An article, comprising:
- a fiber web comprising a dendrimer, a water repellant, and a plurality of glass fibers having an average diameter between about 0.01 and about 10 microns,
- wherein the fiber web has a basis weight between about 30 and about 400 gsm, an overall thickness between about 100 microns and about 5000 microns, an overall pressure drop between about 5 Pa and about 700 Pa, and a water repellency of between about 1 kPa and about 20 kPa.
Dependencies are inferred from the claim text.