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Patent Searching and Data


Matches 751 - 800 out of 7,327

Document Document Title
WO/2007/070121
A process for improving the melt characteristics of polyethylene resins is provided. The process involves contacting a polyethylene resin powder with a low level of free radical initiator at a temperature below the melting point of the r...  
WO/2007/067307
This disclosure relates" to olefin polymerization processes for polymerizing ethylene, higher alpha-olefin comonomer and at least one diene, especially vinyl norbornene (VNB), and especially processes for producing amorphous or semi- cry...  
WO/2007/067259
Multimodal polyethylenes possessing a density from 0.940 to 0.965 g/cm3, and an I21 from 4 to 20 dg/min, and including a low molecular weight ethylene copolymer having a weight average molecular weight from 5,000 amu to 50,000 amu; and a...  
WO/2007/067965
The present invention relates to compositions and processes of making polymers having a controlled molecular weight distribution. The molecular weight distribution is controlled, for example, by controlling the relative monomer concentra...  
WO/2007/067965
The present invention relates to compositions and processes of making polymers having a controlled molecular weight distribution. The molecular weight distribution is controlled, for example, by controlling the relative monomer concentra...  
WO/2007/066475
Disclosed is a vibration control material characterized by containing a propylene polymer (A) containing 40-100 mol% of a constitutional unit (a) derived from propylene and 60-0 mol% of a constitutional unit (b) derived from an α-olefin...  
WO/2007/061587
The present invention pertains to a heterogeneous ethylene/α-olefin copolymer having a relatively high melt index range (I2 from 1.1 to 1.6 dg/min.), low density (0.915 to 0.919 g/cc) and narrow molecular weight distribution (I10/I2 fro...  
WO/2007/061593
Ethylene copolymers valuable for films, coatings, sheets, and molded articles are disclosed. Some of the copolymers have a long-chain-branching index from 0.25 to 0.60 and a gpcBR index from 0.1 to 0.7. Others have a primary DSC melting ...  
WO/2007/057361
Propylene-ethylene copolymers are flexible and show a very good balance between softness and mechanical properties in their crude state are obtained by solution polymerization in the presence of Ziegler-Natta catalysts. The said copolyme...  
WO/2007/057365
The invention relates to a method for producing an aqueous polymer dispersion while using alkenes having 4 C atoms, and to the use of the obtained aqueous polymer dispersions as constituents in adhesives.  
WO/2007/057365
The invention relates to a method for producing an aqueous polymer dispersion while using alkenes having 4 C atoms, and to the use of the obtained aqueous polymer dispersions as constituents in adhesives.  
WO/2007/054223
The invention relates to a borohydride metallocene complex of a lanthanide, the preparation method thereof, a catalytic system including said borohydride metallocene complex and a method for the copolymerisation of olefins using said cat...  
WO/2007/054224
The invention relates to a borohydride metallocene complex of a lanthanide, the preparation method thereof, a catalytic system including said borohydride metallocene complex, a method for the copolymerisation of olefins using said cataly...  
WO/2007/054223
The invention relates to a borohydride metallocene complex of a lanthanide, the preparation method thereof, a catalytic system including said borohydride metallocene complex and a method for the copolymerisation of olefins using said cat...  
WO/2007/040595
An improved two-step polymerization process wherein ethylene homopolymer is produced in a first reactor and ethylene copolymer having narrowed short-chain branching distribution is prepared in a second reactor. Narrowed short- chain bran...  
WO/2007/040595
An improved two-step polymerization process wherein ethylene homopolymer is produced in a first reactor and ethylene copolymer having narrowed short-chain branching distribution is prepared in a second reactor. Narrowed short- chain bran...  
WO/2007/037944
Group 4 metal complexes comprising a polyvalent, heteroaryl donor ligand and their use as components of olefin polymerization catalysts, especially suited for preparing propylene/ethylene copolymer products having high isotacticity and l...  
WO/2007/036135
A catalyst active component for ethylene polymerization or copolymerization, preparation method thereof and a catalyst using said active component. The catalyst active component according to invention comprises from 12.0 to 18.0 parts by...  
WO/2007/037944
Group 4 metal complexes comprising a polyvalent, heteroaryl donor ligand and their use as components of olefin polymerization catalysts, especially suited for preparing propylene/ethylene copolymer products having high isotacticity and l...  
WO/2007/034920
Disclosed is an ethylene polymer which is a copolymer of ethylene and an α-olefin having 4 to 10 carbon atoms and satisfies the following requirements [1] to [4]: [1] the MFR value falls within the range from 0.10 to 100 g/10 min.; [2] ...  
WO/2007/034828
Disclosed is a method wherein a cyclic olefin random copolymer is produced by copolymerizing ethylene and a specific cyclic olefin in the presence of a polymerization catalyst which contains a transition metal catalyst component and a co...  
WO/2007/030260
A catalyst composition that includes a support material having an improved particle-size distribution is provided. Processes for producing polyolefin composition also are provided. Polymers and films also are provided. An example of a ca...  
WO/2007/026743
Cycloolefin copolymers are produced by copolymerizing ethylene and/or an α-olefin having 3 to 20 carbon atoms with at least one cycloolefin in the presence of a polymerization catalyst consisting of both a Group 4 metal complex (prefera...  
WO/2007/022618
The present invention relates to a process for producing peroxide curable high multiolefin halobutyl ionomers prepared by reacting a halogenated butyl polymer having a high mol percent of multiolefin with at least one nitrogen and/or pho...  
WO/2007/022643
The present invention relates to a peroxide curable rubber nanocomposite compound comprising a peroxide curative, a nanoclay and a high multiolefin halobutyl ionomer prepared by reacting a halogenated butyl polymer having a high mol perc...  
WO/2007/022619
The present invention relates to a peroxide curable rubber compound comprising a peroxide curative and a high multiolefin halobutyl ionomer prepared by reacting a halogenated butyl polymer having a high mol percent of multiolefin with at...  
WO/2007/021798
Disclosed is a composition which comprises or consists essentially of a high melt index ethylene acid copolymer comprising monomer units derived from ethylene, an alkyl (meth)acrylate, a (meth)acrylic acid, and an optional comonomer. Als...  
WO/2007/020248
The invention relates to a method for producing copolymers made from isobutene and at least one vinylaromatic component. Said method consists of polymerising isobutene or a hydrocarbon mixture containing isobutene with at least one vinyl...  
WO/2007/019390
Surface-active solid-phase catalyst activity may be substantially improved by creating deliberate repetitive surface-to-surface contact between portions of the active surfaces of catalyst objects. While they are immersed in reactant mate...  
WO/2007/019390
Surface-active solid-phase catalyst activity may be substantially improved by creating deliberate repetitive surface-to-surface contact between portions of the active surfaces of catalyst objects. While they are immersed in reactant mate...  
WO/2007/018245
The invention provides a copolymer rubber excellent in processability in kneading and processability in extrusion; rubber compositions containing the rubber; and crosslinked moldings of the compositions excellent in sealing properties an...  
WO/2007/015927
Disclosed herein are various processes, including continuous fluidized-bed gas- phase polymerization processes for making a high strength, high density polyethylene copolymer, comprising (including): contacting monomers that include ethy...  
WO/2007/012406
Method of preparing olefin polymers, which comprises the polymerization of at least one α-olefin in the presence of a hybrid catalyst to produce a polymer comprising at least a higher molecular weight polymer component and a lower molec...  
WO/2007/013932
Disclosed are extrusion or injection molded hollow articles and blow molded bottles comprising ionomer neutralized with trivalent cations. These ionomers have higher melt strength than ionomer composition containing the same copolymer bu...  
WO/2007/011973
This invention relates to a process to produce a polyalpha-olefin comprising: 1) contacting one or more alpha-olefm monomers having 3 to 24 carbon atoms with an unbridged substituted bis cyclopentadienyl transition metal compound having:...  
WO/2007/011464
A process is described for producing a polymer blend comprising (a) a first polymer component comprising a crystalline propylene polymer and (b) a second polymer component comprising a copolymer of propylene with at least one comonomer, ...  
WO/2007/011459
This invention relates to a polyalpha-olefin (and hydrogenated analogs thereof) comprising more than 50 mole % of one or more C5 to C24 alpha-olefin monomers where the polyalpha-olefin has: a) 40 mole % or more of mm triads, b) a Bromine...  
WO/2007/005899
Disclosed are copolymers derived from ethylene and at least two different alkyl acrylate comonomers, with or without an acid cure site-containing comonomer. The copolymers can be derived from (a) from 10 to 50 weight % of ethylene; (b) 2...  
WO/2007/005899
Disclosed are copolymers derived from ethylene and at least two different alkyl acrylate comonomers, with or without an acid cure site-containing comonomer. The copolymers can be derived from (a) from 10 to 50 weight % of ethylene; (b) 2...  
WO/2007/005458
Disclosed are copolymers derived from copolymerization of from about 50 to about 70 weight % of methyl acrylate; optionally from about 0.5 to about 5 weight % of 1,4 butene-dioic acid moieties, or anhydrides or monoalkyl esters thereof; ...  
WO/2007/005458
Disclosed are copolymers derived from copolymerization of from about 50 to about 70 weight % of methyl acrylate; optionally from about 0.5 to about 5 weight % of 1,4 butene-dioic acid moieties, or anhydrides or monoalkyl esters thereof; ...  
WO/2007/002585
The present invention provides a process for the copolymerization of C10+ alpha olefins which comprises copolymerizing a C10+ alpha olefin with another alpha olefin in the presence of a constrained geometry metallocene catalyst and a coc...  
WO/2007/001893
A heterogeneous polymer blend comprises a continuous phase comprising a thermoplastic first polymer having a crystallinity of at least 30% and a dispersed phase comprising particles of a second polymer different from the first polymer di...  
WO/2006/138007
A method of polymerizing olefins comprising combining in one embodiment ethylene and optionally one or more &agr -olefins with a catalyst composition in a continuous polymerization reactor at a pressure of less than 10,000 kPa; wherein t...  
WO/2006/137818
Catalyst compositions and processes for the polymerization of ethylenically unsaturated monomers to produce polymers specific to the polymerization of propylene to produce isotactic polypropylene and copolymer, specifically an ethylene-p...  
WO/2006/138036
Improved catalyst compositions, and polymerization processes using such improved catalyst compositions, are provided. An example of an improved catalyst composition is a supported catalyst system that includes at least one titanium compo...  
WO/2006/134046
A solution polymerization process comprising contacting under polymerization conditions propylene and at least ethylene or an alpha olefin of formula CH2=CHT wherein T is a C2-C20 alkyl radical, in the presence of a catalyst system obtai...  
WO/2006/131263
The present invention relates to a crosslinkable polymer composition which is useful for the preparation of semiconductive layers of electric cables, the polymer composition comprising (a) an unsaturated polyolefm having at least 0.15 vi...  
WO/2006/125300
The present invention is directed to a peroxide curable rubber compound containing a butyl rubber polymer, an olefin polymer of ethylene, at least one alpha-olefin and optionally at least one diene, and a non-polymeric multi-unsaturated ...  
WO/2006/123759
Disclosed is a catalyst for olefin polymerization composed of a crosslinked metallocene compound (A-1) represented by the general formula [1-1] below and at least one or more compounds (b) selected from organic aluminum oxy compounds (b-...  

Matches 751 - 800 out of 7,327