- Patent Title: Multilayer nonwoven fabric for foam molding, method of producing multilayer nonwoven fabric for foam molding, urethane-foam molded complex using multilayer nonwoven fabric, vehicle seat, and chair
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Application No.: US14916436Application Date: 2014-09-05
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Publication No.: US09694558B2Publication Date: 2017-07-04
- Inventor: Taro Ichikawa , Norihito Saza
- Applicant: MITSUI CHEMICALS, INC.
- Applicant Address: JP Tokyo
- Assignee: MITSUI CHEMICALS, INC.
- Current Assignee: MITSUI CHEMICALS, INC.
- Current Assignee Address: JP Tokyo
- Agency: Buchanan, Ingersoll & Rooney PC
- Priority: JP2013-185735 20130906
- International Application: PCT/JP2014/073583 WO 20140905
- International Announcement: WO2015/034069 WO 20150312
- Main IPC: B32B5/06
- IPC: B32B5/06 ; D04H1/46 ; D04H1/4382 ; D04H1/541 ; B32B5/26 ; B32B5/08 ; A47C27/14 ; A47C7/00 ; D04H1/498 ; B32B5/02 ; B32B7/08 ; B32B5/18 ; B60N2/64

Abstract:
Disclosed is a multilayer nonwoven fabric for foam molding containing a dense layer and a reinforcing layer provided on at least one side of the dense layer, the reinforcing layer is a staple fiber nonwoven fabric containing thermoplastic resin staple fibers (A) having a fiber diameter of more than 20 μm, in an amount of 5% by mass to 50% by mass, and hermoplastic resin staple fibers (B) having a fiber diameter of 20 μm or less, in an amount of 95% by mass to 50% by mass, and conjugate polyester-based staple fibers (C) are contained in an amount of 10% by mass to 40% by mass, the dense layer is a nonwoven fabric having bulk density in a range of from 0.05 g/cm3 to 0.3 g/cm3, and the dense layer and the reinforcing layer are entangled with each other by needle punching.
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