A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PROBLEM TO BE SOLVED: To provide a polypropylene fiber excellent in the balance of fiber strength and ductility per fineness.SOLUTION: This invention relates to a polypropylene fiber, comprising a polypropylene-based resin composition comprising 3-50 pts.wt. of a polypropylene resin (X) having a branched structure that satisfies the following characteristics, and 97-50 pt.wt. of a polypropylene resin (Y) other than the polypropylene resin (X): MFR is 0.1-30 g/10 min.; The amount (CXS) of paraxylene-soluble components at 25°C is less than 5.0 wt.%; mm molar fraction of 3 chain of propylene units is 95% or more; Mw/Mn is 3.0-10.0, and Mz/Mw is 2.5-10.0; a branch index g', when an absolute molecular weight Mab is 1,000,000, is 0.30 or more but less than 1.00; and a melt tension (MT) is log(MT)≥-0.9×log(MFR)+0.7, or MT≥15.SELECTED DRAWING: None
【課題】繊度あたりの繊維強度及び伸度のバランスに優れたポリプロピレン繊維を提供する。【解決手段】以下の特性を満たす分岐構造を有するポリプロピレン樹脂（Ｘ）３〜５０重量部及びポリプロピレン樹脂（Ｘ）を除くポリプロピレン樹脂（Ｙ）９７〜５０重量部を含有するポリプロピレン系樹脂組成物からなることを特徴とするポリプロピレン繊維。・ＭＦＲが０．１〜３０ｇ／１０分・２５℃パラキシレン可溶成分量（ＣＸＳ）が５．０重量％未満・プロピレン単位３連鎖のｍｍ分率が９５％以上・Ｍｗ／Ｍｎが３．０〜１０．０、かつ、Ｍｚ／Ｍｗが２．５〜１０．０・絶対分子量Ｍａｂｓが１００万における分岐指数ｇ’が０．３０以上１．００未満・溶融張力（ＭＴ）が、ｌｏｇ（ＭＴ）≧−０．９×ｌｏｇ（ＭＦＲ）＋０．７、又は、ＭＴ≧１５のいずれかを満たす。【選択図】なし
PROBLEM TO BE SOLVED: To provide a polypropylene fiber excellent in the balance of fiber strength and ductility per fineness.SOLUTION: This invention relates to a polypropylene fiber, comprising a polypropylene-based resin composition comprising 3-50 pts.wt. of a polypropylene resin (X) having a branched structure that satisfies the following characteristics, and 97-50 pt.wt. of a polypropylene resin (Y) other than the polypropylene resin (X): MFR is 0.1-30 g/10 min.; The amount (CXS) of paraxylene-soluble components at 25°C is less than 5.0 wt.%; mm molar fraction of 3 chain of propylene units is 95% or more; Mw/Mn is 3.0-10.0, and Mz/Mw is 2.5-10.0; a branch index g', when an absolute molecular weight Mab is 1,000,000, is 0.30 or more but less than 1.00; and a melt tension (MT) is log(MT)≥-0.9×log(MFR)+0.7, or MT≥15.SELECTED DRAWING: None
【課題】繊度あたりの繊維強度及び伸度のバランスに優れたポリプロピレン繊維を提供する。【解決手段】以下の特性を満たす分岐構造を有するポリプロピレン樹脂（Ｘ）３〜５０重量部及びポリプロピレン樹脂（Ｘ）を除くポリプロピレン樹脂（Ｙ）９７〜５０重量部を含有するポリプロピレン系樹脂組成物からなることを特徴とするポリプロピレン繊維。・ＭＦＲが０．１〜３０ｇ／１０分・２５℃パラキシレン可溶成分量（ＣＸＳ）が５．０重量％未満・プロピレン単位３連鎖のｍｍ分率が９５％以上・Ｍｗ／Ｍｎが３．０〜１０．０、かつ、Ｍｚ／Ｍｗが２．５〜１０．０・絶対分子量Ｍａｂｓが１００万における分岐指数ｇ’が０．３０以上１．００未満・溶融張力（ＭＴ）が、ｌｏｇ（ＭＴ）≧−０．９×ｌｏｇ（ＭＦＲ）＋０．７、又は、ＭＴ≧１５のいずれかを満たす。【選択図】なし
POLYPROPYLENE FIBER
ポリプロピレン繊維
FUKUI HIROAKI (author)
2018-10-04
Patent
Electronic Resource
Japanese
IPC:
D01F
Chemische Gesichtspunkte bei der Herstellung von produzierten Filamenten, Zwirnen, Fasern, Borsten oder Bändern
,
CHEMICAL FEATURES IN THE MANUFACTURE OF MAN-MADE FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
/
A47G
Haushalt- oder Tafelausstattung
,
HOUSEHOLD OR TABLE EQUIPMENT
/
C04B
Kalk
,
LIME
/
C08L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
,
Massen auf Basis makromolekularer Verbindungen
/
D03D
WOVEN FABRICS
,
Gewebe
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