1
Marvin E Jones, Alan D Rousseau: Oily mist resistant electret filter media and method for filtering. Minnesota Mining and Manufacturing Company, Gary L Griswold, Walter N Kirn, Carole Truesdale, May 2, 1995: US05411576 (94 worldwide citation)

An oily mist resistant electret filter media is provided. The filter media includes polypropylene electret fibers and a melt processable fluorochemical additive. The additive has a melt temperature of at least 25.degree. C. and a molecular weight of about 500 to 2500. Also provided is a method for f ...


2
Alan D Rousseau: Photopolymerizable composition containing ethylenically unsaturated oligomers. Minnesota Mining and Manufacturing Company, Cruzan Alexander, Donald M Sell, Mark A Litman, October 14, 1980: US04228232 (94 worldwide citation)

A photopolymerizable composition is disclosed which comprises 10 to 60% by weight of an ethylenically unsaturated, carboxylic acid containing oligomer,


3
Alan D Rousseau, Marvin E Jones, Seyed A Angadjivand: Fibrous webs having enhanced electret properties. Minnesota Mining and Manufacturing Company, Carole Truesdale, Karl G Hanson, June 1, 1999: US05908598 (88 worldwide citation)

The present invention relates to a method of making a fibrous electret material which includes the steps of (1) forming a fibrous web of nonconductive thermoplastic fibers from a blend of nonconductive thermoplastic resin and an additive which is (a) a thermally stable organic compound or oligomer c ...


4
Marvin E Jones, Alan D Rousseau: Oily mist resistant electret filter media. Minnesota Mining and Manufacturing Company, Gary L Griswold, Walter N Kirn, Carole Truesdale, December 5, 1995: US05472481 (78 worldwide citation)

An oily mist resistant electret filter media is provided. The filter media includes polypropylene electret fibers and a melt processable fluorochemical additive, the additive having a melting point of at least 25.degree. C. and a molecular weight of about 500 to 2500.


5
Alan D Rousseau, Marvin E Jones, Seyed A Angadjivand: Electret filter media containing filtration enhancing additives. Minnesota Mining and Manufacturing Company, Karl G Hanson, Carole Truesdale, November 2, 1999: US05976208 (47 worldwide citation)

Electret filter media comprising a fibrous web of a blend of a thermoplastic resin and at least one compound or oligomer that enhances the web's electret properties.


6
Alan D Rousseau, Marvin E Jones, Seyed A Angadjivand: Fibrous webs useful for making electret filter media. Minnesota Mining and Manufacturing Company, Carole Truesdale, Karl G Hanson, October 19, 1999: US05968635 (41 worldwide citation)

Fibrous webs comprising a blend of a thermoplastic resin and at least one compound or oligomer which is ##STR1## wherein R.sub.f is a perfluorinated moiety which may contain one or more catenary ether oxygen atoms, Q is a linking group selected from alkylene groups having 1 or 2 carbon atoms, sulfon ...


7
Alan D Rousseau: Photopolymerizable oligomer. Minnesota Mining and Manufacturing Company, Cruzan Alexander, Donald M Sell, Mark A Litman, December 8, 1981: US04304923 (41 worldwide citation)

Ethylenically unsaturated polymerizable oligomers, which are particularly useful in printing plate compositions, comprise backbones formed by the removal of hydrogen from hydroxyl groups and having bonded thereto both carboxylic acid groups and ethylenically unsaturated, free radical polymerizable g ...


8

9
Alan D Rousseau, Marvin E Jones, Seyed A Angadjivand: Composition useful for making electret fibers. Minnesota Mining and Manufacturing Company, Carole Truesdale, Karl Hanson, July 6, 1999: US05919847 (39 worldwide citation)

A composition comprising a blend of a thermoplastic resin and at least one compound or oligomer which is ##STR1## wherein R.sub.f is a perfluorinated moiety which may contain one or more catenary ether oxygen atoms, Q is a linking group selected from alkylene groups having 1 or 2 carbon atoms, sulfo ...


10
Alan D Rousseau, Marvin E Jones, Betty Z Mei: Electret filters that exhibit increased oily mist resistance. 3M Innovative Properties Company, Frank S Rosenberg, Karl G Hanson, April 10, 2001: US06214094 (35 worldwide citation)

The thermally stimulated discharge current of an electret article can be used to identify electret articles that exhibit superior filtration properties. Electret filters that exhibit superior properties not achieved in similarly constructed filters contain fibers that are made from a blend of a poly ...