Title:
【発明の名称】不織複合シート材料
Document Type and Number:
Japanese Patent JP2003506582
Kind Code:
A
Abstract:
A composite sheet is provided that includes a first fibrous layer having a first side and an opposite second side, and a second fibrous layer bonded to the first side of the first fibrous layer. The first fibrous layer is a multiple component meltblown web comprised of at least 95 % by weight of meltblown fibers having an average effective diameter of less than 10 microns. The meltblown web is comprised of 10 % to 98 % by weight polyethylene and 90 % to 2 % by weight of a synthetic fiber forming polymer having a melt temperature greater than 140 DEG C or a glass transition temperature of at least 40 DEG C. The second fibrous layer is comprised of at least 95 % by weight of second layer fibers having an average effective diameter that is greater than the average effective diameter of the meltblown fibers of the first fibrous layer. The composite sheet has a basis weight of less than 120g/m<2>, a grab tensile strength of at least 35 N, and a hydrostatic head of at least 10 cm.
Inventors:
Radesil, Edgar N
Bangsal, Visiyal
Davis, Michael Sea
Bangsal, Visiyal
Davis, Michael Sea
Application Number:
JP2001513677A
Publication Date:
February 18, 2003
Filing Date:
August 01, 2000
Export Citation:
Assignee:
E.I.DU PONT DE NEMOURS AND COMPANY
International Classes:
A61F13/00; B32B5/26; D01D5/098; D01F8/06; D01F8/14; D04H1/42; D04H1/56; D04H3/16; D04H13/00; A61F13/15; (IPC1-7): D04H3/16; A61F13/00
Domestic Patent References:
| JPH09209254A | 1997-08-12 | |||
| JPH1121754A | 1999-01-26 |
Foreign References:
| WO1997023677A2 | 1997-07-03 |
Attorney, Agent or Firm:
Heiyoshi Odashima