Invention Grant
- Patent Title: Process for producing nonwoven fabric
- Patent Title (中): 无纺布生产方法
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Application No.: US13967111Application Date: 2013-08-14
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Publication No.: US09447531B2Publication Date: 2016-09-20
- Inventor: Larry H. McAmish , David A. Skelhorn
- Applicant: Imerys Pigments, Inc.
- Applicant Address: US GA Roswell
- Assignee: Imerys Pigments, Inc.
- Current Assignee: Imerys Pigments, Inc.
- Current Assignee Address: US GA Roswell
- Agency: Finnegan, Henderson, Farabow, Garrett & Dunner LLP
- Main IPC: D01D1/02
- IPC: D01D1/02 ; D01D1/04 ; D01D5/08 ; D01D5/098 ; D01D5/12 ; D01D5/14 ; D01D7/00 ; D01F1/02 ; D01F1/04 ; D04H3/08 ; D04H3/10 ; D04H3/11 ; D04H3/14 ; D04H3/105 ; D04H3/16

Abstract:
Described herein are spunlaid fibers including at least one polymeric resin and at least one filler having an average particle size of less than or equal to about 5 microns and/or having a top cut of less than about 15 microns. The at least one filler may be present in an amount of less than about 40% by weight, relative to the total weight of the spunlaid fibers. Also described herein is a method for producing spunlaid fibers including adding calcium carbonate to at least one polymeric resin and extruding the resulting mixture. Further described herein are nonwoven fabrics including such spunlaid fibers, and methods for producing them.
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