Invention Grant
- Patent Title: Extrusion coated perforated nonwoven web and method for making
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Application No.: US15842968Application Date: 2017-12-15
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Publication No.: US10821622B2Publication Date: 2020-11-03
- Inventor: James W. Cree
- Applicant: James W. Cree
- Applicant Address: US OH Loveland
- Assignee: ADVANTAGE CREATION ENTERPRISE LLC
- Current Assignee: ADVANTAGE CREATION ENTERPRISE LLC
- Current Assignee Address: US OH Loveland
- Agency: Hasse & Nesbitt LLC
- Agent Donald E. Hasse
- Main IPC: B32B3/24
- IPC: B32B3/24 ; B26F1/20 ; A61F13/512 ; B26F1/24 ; B26F1/26 ; B32B3/26 ; B32B3/30 ; B32B5/26 ; B32B27/08 ; B32B27/12 ; B32B27/20 ; B32B27/32 ; B32B38/04 ; B32B37/15 ; B32B38/18

Abstract:
A method for making an extrusion coated perforated nonwoven web. The method comprises the steps of extruding a molten polyethylene coating onto a nonwoven web, and aperturing the molten polyethylene coating through heat and pneumatic pressure differential to create microperforations therein at a density of between about 35 and about 120 perforations per linear inch. The resulting microperforated nonwoven web is then thermomechanically perforated by feeding it through perforating rolls, at least one of which has raised protuberances to create macroperforations that extend through at least the polyethylene coating. The macroperforations have a density of between about 6 and about 35 perforations per linear inch. The perforated nonwoven web is useful as a topsheet for absorbent articles.
Public/Granted literature
- US20180104842A1 EXTRUSION COATED PERFORATED NONWOVEN WEB AND METHOD FOR MAKING Public/Granted day:2018-04-19
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