Invention Grant
- Patent Title: Process for manufacturing nonwoven web material
- Patent Title (中): 非织造纤维网材料的制造方法
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Application No.: US14069843Application Date: 2013-11-01
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Publication No.: US09540746B2Publication Date: 2017-01-10
- Inventor: Arman Ashraf , Ronald Thomas Gorley
- Applicant: The Procter & Gamble Company
- Applicant Address: US OH Cincinnati
- Assignee: The Procter & Gamble Company
- Current Assignee: The Procter & Gamble Company
- Current Assignee Address: US OH Cincinnati
- Agent William E. Gallagher
- Main IPC: B29B17/00
- IPC: B29B17/00 ; B29B17/02 ; B29C37/02 ; C08J11/00 ; C08J11/04 ; C08J11/10 ; C08J11/14 ; D01D5/08 ; D01D5/088 ; D01D5/092 ; D01D5/30 ; D01D5/32 ; D01D5/00 ; D01D5/098 ; D01D1/00 ; D04H3/005 ; B32B5/02 ; B32B5/26 ; D04H1/4274 ; D04H3/007 ; D04H3/011 ; D04H3/14 ; D04H3/16 ; D04H5/06 ; D04H1/4291 ; D04H1/435 ; D04H1/4374 ; D04H1/56 ; B32B5/08

Abstract:
A nonwoven web material including fibers formed of a polyolefin and a polyester is disclosed. The fibers may include fine fibers produced by, for example, a meltblowing process. The polyolefin may be polypropylene and the polyester may be polylactic acid. The polylactic acid may be obtained and included by recycling scrap nonwoven material containing a polylactic acid component, hydrolyzing the polylactic acid component to reduce its viscosity, blending the hydrolyzed polylactic acid with a polyolefin resin, and melt-spinning the blended material to form fibers. A related process is disclosed.
Public/Granted literature
- US20150123304A1 NONWOVEN WEB MATERIAL INCLUDING FIBERS FORMED OF RCECYCLED POLYESTER, AND METHODS FOR PRODUCING Public/Granted day:2015-05-07
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