Title:
【発明の名称】熔融紡糸ポリエステル不織布シート
Document Type and Number:
Japanese Patent JP2003518206
Kind Code:
A
Abstract:
This invention provides a process for making a nonwoven sheet of substantially continuous melt spun fibers by extruding melt spinnable polymer containing at least 30% by weight low IV poly(ethylene terephthalate), drawing the extruded fiber filaments at a rate of at least 6000 m/min, laying the fiber filaments down on a collection surface, and bonding the fiber filaments together to form a nonwoven sheet. The invention further provides a nonwoven sheet comprised of at least 30% by weight poly(ethylene terephthalate) having an intrinsic viscosity of less than 0.62 dl/g, where the sheet has a basis weight of less than 125 g/m2, and a grab tensile strength of at least 0.7 N/(g/m2).
Inventors:
Bangsal, Visiyal
Davis, Michael Sea
Radesil, Edgar N
Davis, Michael Sea
Radesil, Edgar N
Application Number:
JP2001546995A
Publication Date:
June 03, 2003
Filing Date:
December 20, 2000
Export Citation:
Assignee:
E.I.DU PONT DE NEMOURS AND COMPANY
International Classes:
D01D5/098; D01F6/92; D04H3/14; D04H3/16; (IPC1-7): D04H3/16
Domestic Patent References:
| JPH11302959A | 1999-11-02 | |||
| JPS646160A | 1989-01-10 | |||
| JP2000506942A | 2000-06-06 | |||
| JPH11158765A | 1999-06-15 | |||
| JP2000511977A | 2000-09-12 | |||
| JPH11302959A | 1999-11-02 | |||
| JPS646160A | 1989-01-10 | |||
| JP2000506942A | 2000-06-06 | |||
| JPH11158765A | 1999-06-15 | |||
| JP2000511977A | 2000-09-12 |
Attorney, Agent or Firm:
Heiyoshi Odashima