Patent•
Thermoplastic elastomer compositions
05 Nov 2003-
TL;DR: In this paper, a unique thermoplastic olefin composition having at least 40 percent by weight of a propylene-alpha olefins copolymer based on the total weight of polymers in the composition was proposed.
Abstract: A unique thermoplastic olefin composition having: (a) at least 40 percent by weight of a propylene-alpha olefin copolymer based on the total weight of polymers in the composition, the propylene-alpha olefin copolymer having at least 60 percent by weight units derived from propylene, at least 6 percent by weight units derived from an alpha olefin, a molecular weight distribution less than 3.5, and a broad composition distribution; and (b) at least 20 percent by weight of a polypropylene based on the total weight of polymers in the composition, the polypropylene having at least 93 percent by weight units derived from propylene, a molecular weight distribution of greater than 3.5, a heat of fusion greater than the heat of fusion exhibited by the propylene-alphaolefin copolymer, and a melting point Tmax of at least 120°C.
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Patent•
19 Mar 2007TL;DR: In this article, the authors present a virtualization controller for controlling data transfer between a host system and a plurality of storage devices, consisting of a first port for connection with the storage devices each having a storage area to store data; a second port for connecting with the host system; a processor; and a memory configured to store volume mapping information.
Abstract: Embodiments of the present invention are directed to systems and methods of controlling data transfer between a host system and a plurality of storage devices. One embodiment is directed to a virtualization controller for controlling data transfer between a host system and a plurality of storage devices. The virtualization controller comprises a plurality of first ports for connection with the plurality of storage devices each having a storage area to store data; a second port for connection with the host system; a processor; and a memory configured to store volume mapping information which correlates first identification information used by the host system to access a first storage area in one of the storage devices, with second identification information for identifying the first storage area, the correlation being used by the processor to access the first storage area. When data stored in the first storage area is transferred to a second storage area in one of the storage devices, the processor correlates the first identification information with a third identification information for identifying the second storage area and registers the first identification information and the third identification information in the volume mapping information.
185 citations
Patent•
25 Aug 2004
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.
Abstract: Aqueous dispersions including at least one thermoplastic resin; at least one dispersing agent; and water; wherein the dispersion has a pH of less than 12 are disclosed along with dispersions including at least one thermoplastic resin; at least one dispersing agent; and water wherein the dispersion has a volume average particle size of less than about 5 μm. Some dispersions include less than about 4 percent by weight of the dispersing agent based on the weight of the thermoplastic resin. Other dispersions include at least one propylene-rich alpha-olefin interpolymer; at least one dispersing agent; and water. Methods of making such dispersions are also described.
135 citations
Patent•
24 May 2006TL;DR: In this article, an adhesive composition comprising a functionalized random propylene polymer (FRPP) having at least 0.1 wt% of a functional group, a heat of fusion of between 0.5 and 70 J/g, and an mm triad tacticity index of at least 75%, was proposed.
Abstract: This invention relates to an adhesive composition comprising a functionalized random propylene polymer (FRPP) having at least 0.1 wt% of a functional group, a heat of fusion of between 0.5 and 70 J/g, and an mm triad tacticity index of at least 75%, where the adhesive has a T-Peel adhesion on a polar substrate at 20°C of at least 175 N/m (1 lb/in) and a T-Peel adhesion on a non-polar substrate at 20°C of at least 175 N/m (1 lb/in) where the polarity of the polar substrate is at least 0.10 units higher than the polarity of the non-polar substrate. Methods to produce the adhesive and articles comprising the adhesive are also disclosed.
94 citations
Patent•
28 Feb 2005
TL;DR: In this article, a method for forming a heat sealable coating on a substrate, wherein the substrate is formed from at least one oriented polymer is shown, which includes depositing an aqueous polymer dispersion on the substrate, and drying the dispersion to form a first layer.
Abstract: A method for forming a heat sealable coating on a substrate, wherein the substrate is formed from at least one oriented polymer is shown. The method includes depositing an aqueous polymer dispersion on the substrate, wherein the aqueous polymer dispersion includes (A) at least one thermoplastic resin; (B) at least one dispersing agent; and (C) water; wherein the dispersion has a pH of less than 12, and drying the dispersion to form a first layer.
77 citations
Patent•
02 Mar 2011
TL;DR: In this paper, the authors presented an aqueous dispersion, a coating composition, coating layers and coated article made therefrom, consisting of the melt blending product of: (1) from 50 to 99 percent by weight of one or more polyethylene terephthalate resins, based on the total solid content of the dispersion; (2) from 1 to 50 percent by the weight of stabilizing agents comprising at least one second polyester.
Abstract: The instant invention provides an aqueous dispersion, a coating composition, coating layers and coated article made therefrom. The coating composition according to the present invention comprises: (1) the inventive aqueous dispersion comprising the melt blending product of: (a) from 50 to 99 percent by weight of one or more polyethylene terephthalate resins, based on the total solid content of the dispersion; (b) from 1 to 50 percent by weight of one or more stabilizing agents comprising at least one second polyester, based on the total solid content of the dispersion, wherein said second polyester (i) has a carboxylic acid group and an acid number equal to or greater than 15, based on the solid content of the second polyester; or (ii) is a self-dispersing sulfopolyester; (c) one or more neutralizing agents; and (d) from 15 to 90 percent by weight of water, based on the total weight of the dispersion; wherein said dispersion has a solid content of 10 to 85 percent, based on the total weight of the dispersion; and (2) optionally one or more cross-linking agents.
61 citations
References
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Patent•
15 Oct 1992
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.
Abstract: Elastic substantially linear olefin polymers are disclosed which have processability similar to highly branched low density polyethylene (LDPE), but the strength and toughness of linear low density polyethylene (LLDPE). The polymers have processing indices (PI's) less than or equal to 70 percent of those of a comparative linear olefin polymer and a critical shear rate at onset of surface melt fracture of at least 50 percent greater than the critical shear rate at the onset of surface melt fracture of a traditional linear olefin polymer at about the same I2 and Mw?Mn. The novel polymers can also have from 0.01 to 3 long chain branches/1000 carbons along the polymer backbone and have higher low/zero shear viscosity and lower high shear viscosity than comparative linear olefin polymers. The novel polymers can also be characterized as having a melt flow ratio, I10/I2, » 5.63, a molecular weight distribution, Mw/Mn, defined by the equation: Mw/Mn « (I10/I2) - 4.63, and a critical shear stress at onset of gross melt fracture greater than 4 x 10?6? dyne/cm2.
1,540 citations
Patent•
02 Sep 1992TL;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.
Abstract: Elastic 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 olefin polymer and a critical shear rate at onset of surface melt fracture of at least 50 percent greater than the critical shear rate at the onset of surface melt fracture of a traditional linear olefin polymer at about the same I2 and Mw /Mn. The novel polymers have higher low/zero shear viscosity and lower high shear viscosity than comparative linear olefin polymers.
1,152 citations
Patent•
26 Sep 1995
TL;DR: In this paper, the authors proposed a method for copolymerizing alpha-olefins either alone or in combination with one or more other ALOIs in a gas phase reactor having a fluidized bed and a fluidizing medium such that the fluidization medium entering the reactor comprises a gas and a liquid phase.
Abstract: The invention is directed toward polymerizing or copolymerizing alpha-olefins either alone or in combination with one or more other alpha-olefins in a gas phase reactor having a fluidized bed and a fluidizing medium such that the fluidizing medium entering the reactor comprises a gas and a liquid phase.
866 citations
Patent•
05 Jun 1984TL;DR: In this article, derivatives of mono, bi and tricyclopentadienyl coordination complexes with a transition metal and an alumoxane are employed in a process of producing polyolefins of controlled molecular weight.
Abstract: Catalysts comprising (a) derivatives of mono, bi and tricyclopentadienyl coordination complexes with a transition metal and (b) and an alumoxane are employed in a process of producing polyolefins of controlled molecular weight.
812 citations
Patent•
12 Sep 1991TL;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.
Abstract: A monocyclopentadienyl or substituted monocyclopentadienyl metal complex containing compound useful as a polymerization catalyst corresponding to the formula: CpMX.sub.n.sup.+ A.sup.- wherein: Cp is a single η 5 -cyclopentadienyl or η 5 -substituted cyclopentadienyl group optionally covalently bonded to M through a substituent; M is a metal of Group 3-10 or the Lanthanide Series of the Periodic Table bound in an η 5 bonding mode to the cyclopentadienyl or substituted cyclopentadienyl group; X each occurrence independently is selected from the group consisting of hydride, halo, alkyl, aryl, silyl, germyl, aryloxy, alkoxy, amide, siloxy, neutral Lewis base ligands and combinations thereof having up to 20 non-hydrogen atoms, and optionally one X together with Cp forms a metallocycle with M; R is alkyl or aryl of up to 10 carbons; n is one or two depending on the valence of M; and A is a noncoordinating, compatible anion of a Bronsted acid salt.
724 citations