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EP0395336A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Soft nonwoven fabric of filament

Assignee: Mitsui Chemicals Inc
•
Filing: 1990-04-23
•
Granted: —
•
Expires: 2010-04-23
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Abstract

Abstract Nonwoven fabrics formed, in spun-bonding pro­cess, of crimped bi-component composite filaments com­posed of (A) a first component composed of (a) 3 to 40 % by weight of a propylene/ethylene random copolymer having a melting point, determined from DSC main peaks of 110 to 150 °C and a melt flow rate [ASTM D-1238 (L)] of not more than 15 g/10 minutes and (b) 97 to 60 % by weight of polyethylene having a melt flow rate [ASTM D-1238 (E)] of at least 15 g/10 minutes, and (B) a second component comprising crystalline polypropylene having a melt flow rate [ASTM D-1238 (L)] of at least 10 g/10 min. as a main component, have a soft feel and are suitable for use as, e.g., disposable bed sheets and liners for diapers.

Inventors

  • 👤 Akira C/O Mitsui Petrochemical Kaneko
  • 👤 Yoshinori C/O Mitsui Petrochemical Kobayashi
  • 👤 Katuya C/O Mitsui Petrochemical Hata

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-02 23:33
CPC Classifications
D; D01; D01F; D01F8/00; D01F8/04; D01F8/06; D01D; D01D5/00; D01D5/22; D01D5/28; D01D5/30; D01D5/32; D04; D04H; D04H1/00; D04H1/40; D04H1/42; D04H1/4282; D04H1/4291; D04H1/4382; D04H1/43825; D04H1/43832; D04H1/4391; D04H1/43918; D04H3/00; D04H3/08; D04H3/16; Y; Y10; Y10T; Y10T428/00; Y10T428/23; Y10T428/237; Y10T428/24; Y10T428/24802; Y10T428/24826; Y10T428/29; Y10T428/2913; Y10T428/2922; Y10T428/2924; Y10T428/2929; Y10T428/2931; Y10T442/00; Y10T442/60; Y10T442/608; Y10T442/614; Y10T442/626; Y10T442/637

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 114 words
A soft nonwoven fabric of filaments, said filaments being composed of crimped bi-component compo­site filaments composed of (A) a first component composed of (a) 3 to 40 % by weight of a propylene/ethylene random copolymer having a melting point, determined from DSC main peaks of 110 to 150 °C and a melt flow rate [ASTM D-1238 (L)] of not more than 15 g/10 minutes and (b) 97 to 60 % by weight of polyethylene having a melt flow rate [ASTM D-1238 (E)] of at least 15 g/10 minutes, and (B) a second component comprising crystalline polypropylene having a melt flow rate [ASTM D-1238 (L)] of at least 10 g/10 min. as a main component.
Claim 2
Dependent Claim 114 words
A soft nonwoven fabric of filaments, said filaments being composed of crimped bi-component compo­site filaments composed of (A) a first component composed of (a) 3 to 40 % by weight of a propylene/ethylene random copolymer having a melting point, determined from DSC main peaks of 110 to 150 °C and a melt flow rate [ASTM D-1238 (L)] of not more than 15 g/10 minutes and (b) 97 to 60 % by weight of polyethylene having a melt flow rate [ASTM D-1238 (E)] of at least 15 g/10 minutes, and (B) a second component comprising crystalline polypropylene having a melt flow rate [ASTM D-1238 (L)] of at least 10 g/10 min. as a main component.
Claim 3
Dependent Claim 24 words
The nonwoven fabric of claim 1 in which the propylene/ethylene random copolymer is a terpolymer of propylene/ethylene/an alpha-olefin having 4 to 8 carbon atoms.

References Cited (Backward Citations)

US4211819A Cited
JPS63282351A Cited

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