The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 14, 2007
Filed:
Oct. 14, 2002
Toshio Kobayashi, Kagawa ken, JP;
Hiroki Goda, Kagawa-ken, JP;
Kazunari Isogai, Kagawa-ken, JP;
Satoshi Mitsuno, Kagawa-ken, JP;
Toshio Kobayashi, Kagawa ken, JP;
Hiroki Goda, Kagawa-ken, JP;
Kazunari Isogai, Kagawa-ken, JP;
Satoshi Mitsuno, Kagawa-ken, JP;
Uni-Charm Corporation, Ehime-ken, JP;
Abstract
Component thermoplastic synthetic fiber having inelastic extensibility as well as fiber diameter of 5-20 μm constituting a fibrous web is obtained by melt spinning a mixture of two or more thermoplastic synthetic resins each having a number-average molecular weight in a range of 20000-150000 at a draft ratio of 200-2300. In the case of the mixture consisting of at least two types of thermoplastic synthetic resin Ra, Rb having number-average molecular weights Ma, Mb, respectively, wherein a ratio Ma/Mb is 1.1 or higher, Ra is of 20-80 wt %, Rb is of 80-20 wt % and a sum of Ra and Rb makes up 50-100 wt % of the mixture.