Absorbent articles with nonwoven substrates having fibrils
US10993855B2 · kind B2 · utility
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51References
16Claims
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Key dates
| Filing date | Jul 10, 2018 |
| Grant date | May 4, 2021 |
| Priority date | — |
| Expiry date | Jul 4, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2013/530379
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A nonwoven substrate for an absorbent article including a layer of fibers is provided. The nonwoven substrate has a low surface tension fluid strikethrough time to basis weight ratio in the range of about 0.37 s/gsm to about 5 s/gsm. A plurality of the fibers each include fibrils extending outwardly from a surface of the fibers. The plurality of the fibers are made from a composition including a polyolefin and about 11% to about 35% of glycerol tristearate by weight of the composition. The nonwoven substrate has a specific surface area in the range of about 1 m2/g to about 4 m2/g.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.