Patent
Polypropylene-based composite material
Woo Ji Yoon,Park Hae Woong,Lee Choong Hoon,Kim Hyo Ju,Park Sang Eun,Lee Young Woo,Choe Ik Je +6 more
TLDR
In this article, a polypropylene-based composite material capable of exhibiting excellent strength properties and impact strength properties, particularly, markedly improved impact strength at a low temperature without using a separate additive by including polyethylene, and an olefin-based polymer which satisfies the conditions of the following (b1) to (b4): density (d): from 0.850 to 0.910 g/cc, (b2) melt index (MI, 190° C., 2.16 kg load conditions): from 1.5 to 3.0, and (Abstract:
The present invention provides a polypropylene-based composite material capable of exhibiting excellent strength properties and impact strength properties, particularly, markedly improved impact strength properties at a low temperature without using a separate additive by including (A) polypropylene, and (B) an olefin-based polymer which satisfies the conditions of the following (b1) to (b4): (b1) density (d): from 0.850 to 0.910 g/cc, (b2) melt index (MI, 190° C., 2.16 kg load conditions): from 0.1 g/10 min to 100 g/10 min, (b3) molecular weight distribution (MWD): from 1.5 to 3.0, and (b4) i) two peaks are shown in a temperature range of −20° C. to 120° C. when taking measurements of temperature rising elution fractionation, and ii) a relation of T(90)−T(50)≥60° C. is satisfied (where T(90) is a temperature at which 90 wt % of the olefin-based polymer is eluted, and T(50) is a temperature at which 50 wt % of the olefin-based polymer is eluted).read more
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Patent
Polypropylene-based resin composition
TL;DR: In this paper, a polypropylene-based copolymatic copolymer was used to obtain two or more elution temperatures at a predetermined temperature range when analyzed by temperature rising elution fractionation (Tthis paper).
References
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Patent
Metal complex compounds
TL;DR: In this article, a monocyclopentadienyl or substituted cyclopentienyl metal complex containing compound useful as a polymerization catalyst corresponding to the formula: CpMX.n.sup.
Patent
Compositions of ethylene/alpha-olefin multi-block interpolymer for elastic films and laminates
Andy C. Chang,Stephen M. Hoenig,Yunwa W. Cheung,Daniel G. Moldovan,Wenbin Liang,Charles F. Diehl +5 more
TL;DR: In this paper, an elastomeric polyolefinear resin and a high pressure low density type resin are used for elastic polymer compositions that can be more easily processed on cast film lines, extrusion lamination or coating lines.
Patent
Heat sealable blend of very low density polyethylene or plastomer with polypropylene based polymers and heat sealable film and articles made thereof
TL;DR: In this article, the authors defined heat sealable compositions suitable for film and film structures as: (a) from 30 to 70 weight percent of a low melting polymer comprising an ethylene-based copolymer having a density of from 0.88 g/cm3 to 0.915 g/ cm3, a melt index of from 1.5 dg/min to 7.5dg /min, a molecular weight distribution no greater than 3.5, and a composition distribution breath index greater than 70 percent; and, (b) being different from (
Patent
Polymer blends from interpolymers of ethylene/alpha-olefins and flexible molded articles made therefrom
Stephen M. Hoenig,Yunwa Wilson Cheung,Daniel G. Moldovan,Wenbin Liang,Chuiwah Alice Cheung,Ray Avery Lewis,John Newton +6 more
TL;DR: In this article, the authors define a mixture of polyolefins and interpolymers, which can be either homopolymers or interpolymer blends, to be used to make flexible molded articles.
Patent
Polypropylene Composition and Uses Thereof
TL;DR: In this paper, a polypropylene composite film consisting of a poly-propylene and a specific propylene-1-butene random copolymer in a specific amount ratio is presented.