Patent
Ethylene polymer film made from ethylene polymer blends
Reads0
Chats0
TLDR
In this paper, the impact and tensile properties of formulated ethylene polymer compositions are disclosed, showing that they have surprisingly good impact properties and a good combination of modulus and toughness.Abstract:
Fabricated articles made from formulated ethylene polymer compositions are disclosed. Films made from such formulated compositions have surprisingly good impact and tensile properties, and an especially good combination of modulus and toughness. The ethylene polymer compositions have at least one homogeneously branched substantially linear ethylene/α-olefin interpolymer and at least one heterogeneously branched ethylene polymer. The homogeneously branched substantially linear ethylene/α-olefin interpolymer has a density from about 0.89 to about 0.92 g/cm 3 and a slope of strain hardening coefficient greater than or equal to about 1.3.read more
Citations
More filters
Journal ArticleDOI
Olefin polymer technologies—History and recent progress at The Dow Chemical Company
P. Steve Chum,Kurt Swogger +1 more
TL;DR: The last 20 years have brought a series of breakthroughs in polyolefins catalysis technology as mentioned in this paper, from Ziegler-Natta catalysis to post-metallocene technology, each new development has increased the producer's freedom in more precisely controlling polymer structure and properties.
Patent
Catalyst composition, method of polymerization, and polymer therefrom
Donald R. Loveday,Mcconville David H,John F. Szul,Kersten Anne Erickson,Simon Mawson,Tae Hoon Kwack,Frederick John Karol,David James Schreck +7 more
TL;DR: In this paper, a new polyolefin, generally polyethylene, particularly a multimodal polymer and more specifically, a bimodal polymeric polymer, and its use in various end-use applications such as film, molding and pipe was disclosed.
Patent
Elastic film laminates
Abuto Frank Paul,Haffner William Bela,Joy Francine Jordan,Ann Louise Mccormack,Duane Girard Uitenbroek +4 more
TL;DR: In this paper, an elastic liquid impermeable laminate is disclosed having an extensible barrier film, and an 8 g/m2 to 100 g /m2 elastomeric nonwoven web comprising fibers of low density polyethylene having a density less than 0.89 g/cm3.
Patent
Aqueous dispersion, its production method, and its use
Brad M. Moncla,Matthew J. Kalinowski,David R. Speth,Charles F. Diehl,Dale C. Schmidt,Kevin D Maak,Ronald Wevers +6 more
TL;DR: Aqueous dispersions including at least one thermoplastic resin, one dispersing agent, and water are described in this article. But the dispersion has a volume average particle size of less than about 5 μm.
Patent
Compositions of ethylene/alpha-olefin multi-block interpolymer for blown films with high hot tack
TL;DR: In this article, the present invention relates to film layers and compositions having improved hot tack properties, where the compositions comprise at least one ethylene/α-olefin interpolymer, wherein the ethylene or α-olef-interpolymer may have, for example, a melting point, Tm, in degrees Celsius, and a density, d, in grams/cubic centimeter, and the numerical values of Tm and d correspond to the relationship: Tm > -2002.9 + 4538.5(d) - 2422.
References
More filters
Patent
Elastic substantially linear olefin polymers
TL;DR: Elastic substantially linear olefin polymers are disclosed in this paper which have processability similar to highly branched low density polyethylene (LDPE), but the strength and toughness of linear LDPE, and can also have from 0.01 to 3 long chain branches/1000 carbons along the polymer backbone.
Journal ArticleDOI
The Dimensions of Chain Molecules Containing Branches and Rings
TL;DR: In this paper, the mean square radii of various branched and ringed polymer molecules were derived under the usual assumptions regarding the statistics of chain configuration, and it was shown that the number of branches or rings can be determined from light scattering measurements.
Patent
Elastic substantialy linear olefin polymers
TL;DR: In this article, substantially linear olefin polymers are disclosed which have very good processability, including processing indices (PI's) less than or equal to 70 percent of those of a comparative linear OLEF polymer and a critical shear rate at onset of surface melt fracture of at least 50 percent greater than the critical hear rate of a traditional linear OE polymer at about the same I2 and Mw /Mn.
Journal ArticleDOI
Structure and chemistry of bis(cyclopentadienyl)-MLn complexes
Joseph W. Lauher,Roald Hoffmann +1 more
Patent
Supported polymerization catalyst
TL;DR: An olefin polymerization catalyst comprising (a) a supported transition metal containing component, (b) a cocatalyst comprising an alumoxane and an organometallic compound of a metal of Groups IA, IIA, IIB, or IIIA of the Periodic Table.