Maurice S Brookhart, Lynda Kaye Johnson, Christopher Moore Killian, Elizabeth Forrester McCord, Stephan James McLain, Kristina Ann Kreutzer, Steven Dale Ittel, Daniel Joseph Tempel: Olefin polymers. E I du Pont de Nemours and Company, Craig A Evans, Joel D Citron, March 9, 1999: US05880241 (95 worldwide citation)

Disclosed herein are processes for polymerizing ethylene, acyclic olefins, and/or selected cyclic olefins, and optionally selected olefinic esters or carboxylic acids, and other monomers. The polymerizations are catalyzed by selected transition metal compounds, and sometimes other co-catalysts. Sinc ...

James C Stevens, Daniel D Vanderlende, Samuel Ethiopia: Isotactic propylene copolymer fibers, their preparation and use. Dow Global Technologies, Whyte Hirschboeck Dudek SC, March 18, 2008: US07344775 (53 worldwide citation)

Fibers comprising a propylene homopolymer or a copolymer of propylene and at least one of ethylene and one or more unsaturated comonomers exhibit desirable properties. The homopolymers are characterized as having 13C NMR peaks corresponding to a regio-error at about 14.6 and about 15.7 ppm, the peak ...

Stephen P Krupp, John O Bieser, Edward N Knickerbocker: Linear ethylene polymer staple fibers. The Dow Chemical Company, May 12, 1992: US05112686 (41 worldwide citation)

Blends of high molecular weight linear polyethylene and low molecular weight linear polyethylene provide improved staple fiber-forming capabilities over that found with either polymer taken alone. Preferably at least one of the polymers used in the blend is a linear low density polyethylene, LLDPE, ...

Zdravko Jezic, Gene P Young: Biconstituent polypropylene/polyethylene fibers. The Dow Chemical Company, July 28, 1992: US05133917 (39 worldwide citation)

Extrudable blends of polypropylene and polyethylene, especially LLDPE, are prepared in a dynamic mixer and extruded as novel biconstituent fibers comprising polypropylene as one phase and polyethylene as another phase. Improved tenacity and hand are obtained, as compared to polypropylene alone.


Hyunkook Shin: Plexifilament and nonwoven made of alternating ethylene/carbon monoxide copolymer. E I du Pont de Nemours and Company, July 20, 1999: US05925442 (4 worldwide citation)

Olefin/carbon monoxide alternating polymers are flash-spun to form plexifilamentary products, pulp products, and foam products from alcohol or halogenated hydrocarbon solvents having 1 to 3 carbon atoms.


Hendrik T Maat, Peter J Cloos, Harm Van Der Werff, Bert J Lommerts: Polyketone yarn and a method of manufacturing same. Akzo Nobel, Joseph M Noto, Loretta A Miraglia, Louis A Morris, September 3, 1996: US05552218 (3 worldwide citation)

The invention relates to polyketone yarns of which the maximum tangential modulus at an elongation of more than 0.2% is at least 10 N/tex which display both high strength and, if so desired, a high elongation at break. The quality number, which is measured on a single filament out of a bundle of at ...


Alessandra Sutti, Tong Lin, Mark Alexander Kirkland: Fibre-forming process and fibres produced by the process. Heiq, McDonnell Boehnen Hulbert & Berghoff, March 20, 2018: US09920454 (1 worldwide citation)

The present invention relates to a process for the preparation of fibers and fibers prepared by the process. The process can provide discontinuous colloidal polymer fibers in a process that employs a low viscosity dispersion medium.