Invention Grant
- Patent Title: Process of making dimensionally stable nonwoven fibrous webs
- Patent Title (中): 制造尺寸稳定的非织造纤维网的方法
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Application No.: US14231175Application Date: 2014-03-31
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Publication No.: US09416485B2Publication Date: 2016-08-16
- Inventor: Eric M. Moore , John D. Stelter , Michael R. Berrigan , Francis E. Porbeni , Matthew T. Scholz , Kevin D. Landgrebe , Korey W. Karls , Sian F. Fennessey , Jay M. Jennen
- Applicant: 3M INNOVATIVE PROPERTIES COMPANY
- Applicant Address: US MN St. Paul
- Assignee: 3M Innovative Properties Company
- Current Assignee: 3M Innovative Properties Company
- Current Assignee Address: US MN St. Paul
- Main IPC: D01D5/08
- IPC: D01D5/08 ; D01D5/42 ; D01D7/00 ; D01D10/02 ; D06M10/00 ; D01D5/00 ; D04H1/4291 ; D04H1/435 ; D04H1/485 ; D04H3/007 ; D04H3/011 ; D04H3/11 ; D04H3/16 ; D01F1/10 ; D01F6/92 ; B29C47/00 ; B29L7/00 ; B29L31/00

Abstract:
Dimensionally stable nonwoven fibrous webs include a multiplicity of continuous fibers formed from one or more thermoplastic polyesters and polypropylene in an amount greater than 0% and no more than 10% by weight of the web. The webs have at least one dimension which decreases by no greater than 10% in the plane of the web when heated to a temperature above a glass transition temperature of the fibers. A spunbond process may be used to produce substantially continuous fibers that exhibit molecular orientation. A meltblown process may be used to produce discontinuous fibers that do not exhibit molecular orientation. In some embodiments, the fibers comprise a viscosity modifier and/or an anionic surfactant. The webs may be used as articles for filtration, sound absorption, thermal insulation, surface cleaning, cellular growth support, drug delivery, personal hygiene, medical apparel, or wound dressing.
Public/Granted literature
- US20140210141A1 PROCESS OF MAKING DIMENSIONALLY STABLE NONWOVEN FIBROUS WEBS Public/Granted day:2014-07-31
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