Peter J. Degen - Huntington NY Jeffrey K. Chambers - Huntington NY John R. Gerringer - Port Washington NY
Assignee:
Pall Corporation - Glen Cove NY
International Classification:
B01D 6100
US Classification:
210649
Abstract:
A system and method for removing contaminants in a fluid, particularly water from lubricating oil, is provided which may comprise a particulate zeolitic adsorbent in conjunction with a non-porous PTFE barrier that has been modified to be permeable to water and impermeable to oil. Such a system is capable of reducing the level of water in lubricating oil to less than 100 parts per million.
Peter J. Degen - Huntington NY Moira H. Bilich - Massapequa NY Trevor A. Staff - Bronx NY John Gerringer - Port Washington NY Richard Frank Salinaro - Hastings on Hudson NY
Assignee:
Pall Corporation - East Hills NY
International Classification:
B01D 6100
US Classification:
210651
Abstract:
The present invention provides a filtration medium comprising an ultrafiltration membrane and a monomer surface coating thereon of an acrylic or methacrylic acid monomer having alcohol functional groups, wherein the filtration medium after having been fully dried is characterized by having a titer reduction of at least about 10. sup. 3 with respect to PP7 bacteriophage and a critical wetting surface tension of at least about 70 mN/m. The filtration medium preferably further comprises a fibrous nonwoven web embedded in the membrane. The present invention also provides a method of filtering a fluid through the present inventive filtration medium, as well as a method of preparing such a filtration medium.