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7429689 Absorbent article with center fill performance  
An absorbent article comprising a central absorbent member and a lateral wicking barrier for inhibition of wicking from the central regions of the article to an outlying outer absorbent member. The...
EP1942226A1 A paper product comprising a polyvinylamine polymer  
Paper products having improved strength properties are disclosed. The paper products comprise a fibrous web containing cellulosic fibers, said fibrous web further comprising a combination of a...
7265258 Absorbent articles with nits and free-flowing particles  
Absorbent articles comprising fibrous nits and other free-flowing particles are disclosed. In one embodiment, an absorbent article is disclosed comprising free-flowing particles in a central...
EP1810992A1 Polyethylene blends  
Blends of very low density polyethylene produced using metallocene catalysts (mVLDPE) and linear low density polyethylene (LLDPE) are disclosed. The polymer blends include a metallocene-catalyzed...
EP1806368A2 Polymerization process in the presence of a supported catalyst system  
A process for polymerizing olefin(s) in the presence of a support catalyst system, the supported catalyst system produced by contacting a supported activator, a bulky ligand and a metal compound.
EP1803747A1 Surface-modified polymerization catalysts for the preparation of low-gel polyolefin films  
Use of a catalyst composition treated with a surface modifier in the polymerization of olefins for lowering the gel content in the resulting polyolefin, wherein the surface modifier has a polar...
7232871 Propylene ethylene polymers and production process  
Ethylene propylene copolymers, substantially free of diene, are described. The copolymers will have a uniform distribution of both tacticity and comonomer between copolymer chains. Further, the...
7232869 Catalyst composition for olefin polymerization  
A process for the preparation of a catalyst system includes the steps of combining a Lewis base, an organic compound having at least one functional group containing active hydrogen, and an...
7220801 Metallocene-produced very low density polyethylenes or linear low density polyethylenes as impact modifiers  
In one embodiment, the present invention is directed to an article, such as a blow-molded bottle, formed from a polymer blend composition. In one aspect, the article is formed by blow-molding...
7214744 Borate activator  
A catalyst system comprising (i) a bulky ligand catalyst compound; and (ii) a novel borate activator is active for olefin polymerization. The novel borate contains at least one chelating (divalent)...
7205371 Blends made from propylene ethylene polymers  
Polymer blend compositions of a first polymer component comprising an ethylene propylene copolymer and a second polymer component comprising an isotactic polypropylene copolymer. The first polymer...
RE39561 Metallocenes containing ligands of 2-substituted indenyl derivatives, process for their preparation, and their use as catalysts  
The novel metallocenes of the formula I in which, preferably, M 1 is Zr or Hf, R 1 and R 2 are alkyl or halogen, R 3 and R 4 are hydrogen, R 5 and R 6 are alkyl or haloalkyl, —(CR 8 R...
7202305 Elastic blends comprising crystalline polymer and crystallizable polymers of propylene  
Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable...
7202190 Supported catalyst system for the polymerization of olefins  
A supported catalyst system for polymerizing olefins comprising a) a support, b) a Lewis base of the formula M 3 R 6 R 7 R 8 ...
RE39532 Metallocenes containing ligands of 2-substituted indenyl derivatives, process for their preparation, and their use as catalysts  
The novel metallocenes of the formula I in which, preferably, M 1 is Zr or Hf, R 1 and R 2 are alkyl or halogen, R 3 and R 4 are hydrogen, R 5 and R 6 are alkyl or haloalkyl, —(CR 8 R...
7195806 High gloss polyethylene articles  
The present invention includes an end use article (i.e., an article of manufacture) and a process for making the same, wherein the end use article has a relatively high gloss and exhibits excellent...
7169864 Metallocene catalysts, their synthesis and their use for the polymerization of olefins  
A process for the preparation of a catalyst system includes the steps of combining a support material with a first composition which includes at least one aluminoxane in a first solvent to provide...
7166674 Elastic blends comprising crystalline polymer and crystallizable polymers of propylene  
Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable...
7163993 Electrical devices from polymer resins prepared with ionic catalysts  
This invention relates to olefin polymers particularly suited to satisfying the dielectric properties required in electrical device use. The olefin polymers can be prepared by contacting...
7157522 Alpha-olefin/propylene copolymers and their use  
Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable...
7135528 Thermoplastic polymer blends of isotactic polypropylene and alpha-olefin/propylene copolymers  
Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable...
7122603 Alpha-Olefin/propylene copolymers and their use  
Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable...
7105609 Alpha-olefin/propylene copolymers and their use  
Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable...
7084218 Thermoplastic polymer blends of isotactic polypropylene and alpha-olefin/propylene copolymers  
Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable...
RE39156 Process for the preparation of polyolefins  
A process for the preparation of an olefin polymer by polymerization or copolymerization of an olefin of the formula R a —CH═CH—R b , in which R a and R b are identical or different and are...
7056993 Process for producing propylene alpha-olefin polymers  
Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable...
7056992 Propylene alpha-olefin polymers  
Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable...
7056982 Thermoplastic polymer blends of isotactic polypropylene and alpha-olefin/propylene copolymers  
Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable...
7053164 Thermoplastic polymer blends of isotactic polypropropylene and alpha-olefin/propylene copolymers  
Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable...
7049372 Propylene alpha-olefin polymer blends  
Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable...
7034078 Blends made from propylene ethylene polymers  
Polymer blend compositions of a first polymer component comprising an ethylene propylene copolymer and a second polymer component comprising an isotactic polypropylene copolymer. The first polymer...
7026405 Blends made from propylene ethylene polymers  
Polymer blend compositions of a first polymer component comprising an ethylene propylene copolymer and a second polymer component comprising an isotactic polypropylene copolymer. The first polymer...
7026404 Articles made from blends made from propylene ethylene polymers  
Articles made from polymer blend compositions of a first polymer component comprising an ethylene propylene copolymer and a second polymer component comprising an isotactic polypropylene copolymer....
7026403 Thermoplastic filled membranes of propylene copolymers  
The invention relates to a thermoplastic membrane (e.g. film, fluid barrier, and the like) which is formed from a blend of: a) a first polymer component (FPC), wherein said FPC comprises a...
7019081 Thermoplastic polymer blends of isotactic polypropylene and alpha-olefin/propylene copolymers  
Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable...
7005491 Propylene diene copolymerized polymers  
A method of lowering MFR response of a high melt flow rate polymer producing metallocene catalyst is provided. The method includes contacting the metallocene catalyst with a sufficient quantity of...
6992160 Polymerization processes for alpha-olefin/propylene copolymers  
Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable...
6992159 Alpha-olefin/propylene copolymers and their use  
Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable...
6992158 Alpha-olefin/propylene copolymers and their use  
Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable...
6992131 Adhesives  
This invention relates to an adhesive including (a) a copolymer including butene, at least 40 mol % propylene, and from 0 to 30 mol % of a termonomer selected from ethylene and C 5 to C 20 ...
6982310 Alpha-olefin/propylene copolymers and their use  
Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable...
6977287 Propylene diene copolymers  
The co-polymerization reaction of one or more olefin monomers, such as propylene, with α,ω-diene units and the resulting copolymers are provided. More specifically, the copolymer may have from 90...
6927258 Elastic blends comprising crystalline polymer and crystallizable polymers of propylene  
Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable...
6921794 Blends made from propylene ethylene polymers  
Polymer blend compositions of a first polymer component comprising an ethylene propylene copolymer and a second polymer component comprising an isotactic polypropylene copolymer. The first polymer...
6916892 Method for transitioning between Ziegler-Natta and metallocene catalysts in a bulk loop reactor for the production of polypropylene  
The present invention relates to propylene polymerization process in a bulk loop reactor, and particularly to propylene polymerization process for polymerizing commercial quantities of...
6867260 Elastic blends comprising crystalline polymer and crystallizable polymers of propylene  
Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable...
6858767 Process for producing liquid polyalphaolefin polymer, metallocene catalyst therefor, the resulting polymer and lubricant containing same  
A liquid polyalphaolefin homo- or copolymer, preferably 1-decene, which is substantially amorphous is obtained by a polymerization process employing hydrogen and a particular type of metallocene...
6838411 Olefin polymerization catalysis with aryl substituted carbenium cationic complexes  
This description addresses a process for the preparation of polyolefins from one or more olefinic monomers comprising combining under polymerization conditions said olefins with the product of...
6824650 Fibrous materials treated with a polyvinylamine polymer  
Textile materials, including paper webs, treated with a polyvinylamine polymer and a second agent that interacts with the polyvinylamine polymer is disclosed. The second agent added with the...
6822057 Olefin polymerization catalysts derived from Group-15 cationic compounds and processes using them  
Fluorinated amine compounds, R′ i ArF—ER 2 , where ArF is a fluoroaryl substituent, E is nitrogen or phosphorous, each R is independently a C 1 -C 20 hydrocarbyl substituent, or the two R's...
Matches 1 - 50 out of 142 1 2 3 >