Japan, Feb. 24 -- DAIWABO CO LTD has got intellectual property rights for 'SPLIT TYPE COMPOSITE FIBER, MANUFACTURING METHOD THEREOF, AND FIBER ASSEMBLY AND SEPARATOR MATERIAL USING THE SAME.' Other related details are as follows:
Application Number: JP,2022-056935
Category (FI): D01F8/06,H01M50/489,D01D5/092,101,H01M50/417,H01M50/44
Stage: PROBLEM TO BE SOLVED: To provide a split type composite fiber having excellent productivity and water dispersibility and suppressed thermal shrinkage on heating, a manufacturing method thereof, and a fiber assembly using the same.SOLUTION: Disclosed is a split type composite fiber involving a first component involving polypropylene and a second component involving high-density polyethylene, wherein the split type composite fiber is characterized by that the polypropylene has a z-average molecular weight (Mz) after spinning is 450,000 or over and 1,000,000 or under and a Q value after spinning of 2.4 or over and 6 or under, and a temperature difference between an extrapolation melting initiation temperature (Tim) of the polypropylene and a melting peak temperature (Tpm) of the polypropylene is 7.3degC or over.SELECTED DRAWING: Figure 1 (Grant)
Filing Date: March 30, 2022
Publication Date: Oct. 17, 2022
The original document can be viewed at: https://www.j-platpat.inpit.go.jp/p0100
Disclaimer: Curated by HT Syndication.
