Fibers and fibrous moldings using the same

Details Fibers and fibrous moldings using the same Fibers and fibrous moldings using the same

1998-04-22

1999-11-30

Edwards, Newton

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

428395, 526348, 5261253, D02G 300, C08F 444, C08F21000

Patent

active

059939648

ABSTRACT:
Fibers having an extremely high heat resistance, satisfactory strength and softness as well as good spinning stability are prepared from a propylene-ethylene copolymer having characteristic ethylene chains, an extremely low amount of reverse insertion of propylene monomer units, and a narrow molecular weight distribution.

REFERENCES:
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patent: 5637665 (1997-06-01), Sustic et al.
patent: 5637666 (1997-06-01), Winter et al.
patent: 5668235 (1997-09-01), Winter et al.
patent: 5714554 (1998-02-01), Sustic et al.
patent: 5763080 (1998-06-01), Stahl et al.
patent: 5874505 (1999-02-01), Saito et al.
Masahiro Kakugo et al. "C NMR Determination of Monomer Sequence Distribution in Ethylene-Propylene Copolymers Prepared Wth o-.delta.TiCL.sub.3 -Al(C.sub.2 H.sub.5).sub.2 CL" Marcromolecules 1982, 15, 1150-1152.
Toshiyuki Tsutsui et al. "Propylene homo- and copolymerization with ethylene using an ethylenebis (1-indenyl) Zirconium dichloride and methylaluminoxane catalyst system" Polymer, 1989 vol. 30 Jul. 1350-1356.

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