Invention Grant
- Patent Title: Molded monocomponent monolayer respirator
- Patent Title (中): 成型单组分单层呼吸器
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Application No.: US11461128Application Date: 2006-07-31
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Publication No.: US07905973B2Publication Date: 2011-03-15
- Inventor: John D. Stelter , Andrew R. Fox , Seyed A. Angadjivand
- Applicant: John D. Stelter , Andrew R. Fox , Seyed A. Angadjivand
- Applicant Address: US MN St. Paul
- Assignee: 3M Innovative Properties Company
- Current Assignee: 3M Innovative Properties Company
- Current Assignee Address: US MN St. Paul
- Agent Karl G. Hanson
- Main IPC: D04H3/14
- IPC: D04H3/14 ; B29C51/02 ; B29C65/10

Abstract:
A molded respirator is made from a monocomponent monolayer nonwoven web of continuous charged monocomponent meltspun partially crystalline and partially amorphous oriented fibers of the same polymeric composition that have been bonded to form a coherent and handleable web which further may be softened while retaining orientation and fiber structure. The respirator is a cup-shaped porous monocomponent monolayer matrix whose matrix fibers are bonded to one another at least some points of fiber intersection. The matrix has a King Stiffness greater than 1 N. The respirator may be formed without requiring stiffening layers, bicomponent fibers, or other reinforcement in the filter media layer.
Public/Granted literature
- US20080026172A1 Molded Monocomponent Monolayer Respirator Public/Granted day:2008-01-31
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