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US 2026/0070010 A1Published application
Nonwoven filtration media including microfibrillated cellulose fibers
AssigneeDonaldson Company, Inc.
InventorsJanelle M. Hampton, Derek Owen Jones, Suresh Laxman Shenoy
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Abstract
A nonwoven filtration medium that includes a fibrous base media including synthetic and/or natural fibers and microfibrillated cellulose fibers.
Claims20
A nonwoven filtration medium comprising:
- a fibrous base media comprising synthetic and/or natural fibers;
- and
- microfibrillated cellulose fibers, wherein a majority of the microfibrillated cellulose fibers have a lateral dimension of up to 4 microns.
A nonwoven filtration medium comprising:
- a base media comprising synthetic and/or natural fibers;
- and
- microfibrillated cellulose fibers, wherein a majority of the microfibrillated cellulose fibers have a lateral dimension of 700 nm to 4 microns;
- wherein the microfibrillated cellulose fibers are present in an amount sufficient to provide a nonwoven filtration medium having an average maximum load at break of at least 1.5 times that of the base media, and/or an average filtration efficiency that is at least 10% greater than that of the base media.
1 more element
A nonwoven filtration medium comprising:
- a base media comprising fiberglass fibers;
- and
- microfibrillated cellulose fibers, wherein a majority of the microfibrillataed cellulose fibers have a lateral dimension range of up to 4 microns.
Dependencies are inferred from the claim text.