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:
Sep. 13, 2022
Filed:
Feb. 07, 2020
Kuraray Co., Ltd., Kurashiki, JP;
Tetsuya Okamoto, Saijo, JP;
Yasuhiro Shirotani, Saijo, JP;
KURARAY CO., LTD., Kurashiki, JP;
Abstract
Provided are a melt blown (MB) nonwoven fabric, a laminate using the same, a method of producing a melt blown nonwoven fabric as well as a melt blowing apparatus. A melt blowing apparatusincludes a dieconfigured to discharge a resin meltwith an accompanying jet to give fiber materials, a hollow cover, and a collector. The fiber materialsfrom the dieare heated to a temperature equal to or higher than a crystallization temperature of crystalline thermoplastic resin inside the hollow coverand collected on a collecting surfaceof the collector. The hollow coverand the collectorare separated by a distance of 5 cm or longer between a lower edgeof the hollow coverand the collecting surfacein a line extending downwardly from the nozzle holesin a vertical direction.