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:
Mar. 17, 2026
Filed:
Dec. 11, 2023
Kao Corporation, Tokyo, JP;
Takahiro Hirano, Utsunomiya, JP;
Hideo Kobayashi, Moka, JP;
Takehiko Uematsu, Oyama, JP;
Shohei Natsui, Utsunomiya, JP;
Kao Corporation, Tokyo, JP;
Abstract
The resin composition for melt spinning of the present invention is a filament having a melt viscosity of 250 Pa·s or less at 200° C. and a shear rate of 0.1 sand a tensile strength of 10 MPa or more. The filament can be produced by forming a molten liquid of a resin composition having a melt viscosity of 250 Pa·s or less at 200° C. and a shear rate of 0.1 sinto a filament shape to provide a formed material, and conveying and concurrently cooling the formed material. The present invention also provides a resin composition for melt spinning being a filament, and a method for producing fiber using a melt spinning apparatus.