WO2025153839 - MULTI-CONSTITUTENT FIBER AND METHOD OF MAKING THE SAME
National phase entry is expected:
Publication Number
WO/2025/153839
Publication Date
24.07.2025
International Application No.
PCT/IB2024/050426
International Filing Date
17.01.2024
Title **
[English]
MULTI-CONSTITUTENT FIBER AND METHOD OF MAKING THE SAME
[French]
FIBRE MULTICONSTITUANT ET SON PROCÉDÉ DE FABRICATION
Applicants **
THE HONG KONG RESEARCH INSTITUTE OF TEXTILES AND APPAREL LIMITED
Inventors
YAO, Gloria Lei
CHAN, Hing-leung
LO, Herman Hei-lok
NGAN, Erika Kit-shan
YEUNG, Kenneth Lap-yan
Application details
| Total Number of Claims/PCT | * |
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| Number of Priorities | * |
| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
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| Pages of Specification | * |
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International Searching Authority |
CNIPA
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
* |
| Type of Assignment |
The Standard Agent's Assignment
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| Applicant's Legal Status |
Legal Entity
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| * | |
| * | |
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| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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| Translation |
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* The data is based on automatic recognition. Please verify and amend if necessary.
** IP-Coster compiles data from publicly available sources. If this data includes your personal information, you can contact us to request its removal.
Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 1648 | |
| EPO | Filing, Examination, Granting | 11606 | |
| Japan | Filing, Examination, Granting | 2174 | |
| South Korea | Filing, Examination, Granting | 2023 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
22,191
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Abstract[English]
This invention provides a multi-constituent fiber and method of making the same. In one embodiment, said multi-constituent fiber is obtained by melt spinning of particles formed from a polymer blend, said polymer blend consisting essentially of: a) 40-80wt.% of polypropylene carbonate, said polypropylene carbonate has a weight-average molecular weight ≥100,000g/mol; b) 10-50wt.% of one or more semicrystalline polymer; and c) 0.1 to 10wt.% of an end-capping and cross-linking agent.[French]
La présente invention concerne une fibre multiconstituant et son procédé de fabrication. Selon un mode de réalisation, ladite fibre multiconstituant est obtenue par filage à l'état fondu de particules formées à partir d'un mélange de polymères, ledit mélange de polymères étant essentiellement constitué de : a) 40 à 80 % en poids de carbonate de polypropylène, ledit carbonate de polypropylène ayant un poids moléculaire moyen en poids ≥ 100 000 g/mol ; b) 10 à 50 % en poids d'un ou de plusieurs polymères semi-cristallins ; et c) 0,1 à 10 % en poids d'un agent de coiffage et de réticulation.