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| Number | Title | Issue Date |
| 7339004 | PVC graft copolymer methods and compositions Methods are described for preparing graft copolymers from poly(vinyl chloride) or vinyl chloride copolymers comprising reacting these materials with sources of selected metal-centered free radicals in the presence of one or more monomers that can undergo free-radica... | 03/04/2008 |
| 7332556 | Crystalline polymers of propylene having improved processability in the molten state and process for their preparation Crystalline polymers and copolymers of propylene having total MIL values>2 g/10 minutes, total [η] values in tetrahydronaphthalene at 135° C.≦2.8 dl/g, mW/MN values>20, a fraction insoluble in xylene at 25° C.≧94, and including from 10 to 60% by weight of a f... | 02/19/2008 |
| 7304110 | Polymer, process for producing the polymer and curable composition containing the polymer This invention provides a production method of a vinyl polymer having a functional group at a molecular chain terminus which comprises adding a compound (I) having a functional group and an internal alkenyl group or conjugated polyene compound (II) in the living rad... | 12/04/2007 |
| 7300983 | High melt strength polymers and method of making same A polymer composition that has a backbone chain; and a plurality of long chain branches connected to the backbone is described. The polymer composition also has a value of 2g′LCB-1g′LCB that is less than about 0.22, wh... | 11/27/2007 |
| 7300994 | Isotactic polypropylene containing polymers Isotactic polypropylene homopolymers or segments of low polydispersity are prepared using phenoxyketimine catalysts containing N-pentafluorophenyl groups. ... | 11/27/2007 |
| 7265190 | Process and apparatus for production of water-absorbent resin There is disclosed a process to uniformly and rapidly carry out the mixing of a monomer liquid and a polymerization initiator and thus for the resulting polymer not to adhere to the inner surface of the piping or the inside of the apparatus in an art of producing a ... | 09/04/2007 |
| 7256240 | Process of making polymer blends In a process for producing a polymer blend, at least one first monomer is polymerized in a first slurry phase reaction zone in the presence of a supported first catalyst to produce a thermoplastic first polymer having a crystallinity of at least 30%. At least part o... | 08/14/2007 |
| 7244788 | Polymer and process for producing polymers A method of producing a polymer or a stellar polymer which comprises polymerizing a vinyl monomer in the manner of living radical polymerization and adding a compound having two or more polymerizable carbon-carbon double bonds at the end point of the polymerization.... | 07/17/2007 |
| 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 copolymers will exhibit a statistically insignificant intramolecular dif... | 06/19/2007 |
| 7227322 | Hoist with detachable power and control unit A hoist is powered by a separate power unit. The hoist unit includes: a motor, a mounting connector, a spool, webbing, auto cut-off and a first portion of a mating electrical connector. The control unit includes a hollow pole, a hook, a second portion of the mating ... | 06/05/2007 |
| 7223822 | Multiple catalyst and reactor system for olefin polymerization and polymers produced therefrom Disclosed is a process for producing branched polymers including at least 50 mol % C3–C40 olefins. The process may include: (1) feeding a first catalyst, an activator, and one or more C2–C40 olefins into a first reacti... | 05/29/2007 |
| 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 component has a uniform distribution of both tacticity and comonomer ... | 04/17/2007 |
| 7196140 | Highly flowable propylene block copolymers The invention relates to highly flowable propylene block copolymers that comprise 50 to 80 wt.-% of a propylene homopolymer and 10 to 70 wt.-% of a propylene copolymer having 5 to 50 wt.-% of a C2–C8 alk-1-ene polymerized into it that is diff... | 03/27/2007 |
| 7193013 | Polyolefin resin composition The present invention provides a polyolefin-based resin composition, comprising (A) a polyolefin I produced from at least one monomer selected from the group consisting of α-olefins, cyclic olefins and styrenes; (B) a polyolefin II produced from said at least one m... | 03/20/2007 |
| 7192902 | Polymerization process with mixed catalyst compositions The application describes a mixed olefin polymerization catalyst composition comprising a support, a reaction product of at least one first organometallic compound and a first activator capable of rendering the first organometallic compound active for insertion poly... | 03/20/2007 |
| 7193024 | Alpha-Olefin based branched polymer A polymer comprising units (1) derived from an alpha-olefin having at least 3 carbon atoms (1′), units (2) derived from divinylbenzene or C1-10hydrocarbyl substituted derivatives thereof (2′), and units (3) derived f... | 03/20/2007 |
| 7151071 | Method for preparation of a solid titanium catalyst for olefin polymerization The present invention relates to a method for preparing a solid titanium catalyst for olefin polymerization. The method for preparing a solid titanium catalyst for olefin polymerization according to the present invention comprises: preparing a magnesium compound sol... | 12/19/2006 |
| 7125834 | Functional substances derived from oligoolefins having functional groups at the ends This invention provides the following: an amphiphilic functional substance with lipophilicity, affinity for supercritical CO2, and if necessary hydrophilicity comprising an oligoolefin chain and a perfluoroalkyl group(s) at a single end thereof or at both... | 10/24/2006 |
| 7101940 | Chemical compound, method for the production thereof and its use in catalyst systems for producing polyolefins The invention relates to a chemical compound of formula (I), wherein M1 represents an element selected from main groups II, III or IV of the periodic table of elements; x is equal to 1, 2, 3 or 4; y is equal to 2, 3 or 4, and; A represents a cation of mai... | 09/05/2006 |
| 7081543 | Bridged biscyclopentadienyl ligands and method of preparation The present invention relates to ligands and the synthesis of those ligands for use in metallocene complexes. More particularly, the present invention relates to the synthesis of diarylsilyl bridged biscyclopentadienes using diarylsilyldisulfonates. Even more partic... | 07/25/2006 |
| 7074871 | Crystalline polymers of propylene having improved processability in the molten state and process for their preparation Crystalline polymers and copolymers of propylene having total MIL values>2 g/10 minutes, total [η] values in tetrahydronaphthalene at 135° C.≦2/8 dl/g, Mw/Mn values>20, a fraction insoluble in xylene at 25° C.≧94, and including from 10 to 60% by weight of a f... | 07/11/2006 |
| 7067591 | Block copolymers and process for their preparation A block copolymer having structural formula A-B or A-B-A, wherein A is a crystallizable isotactic polypropylene block segment and B is an amorphous olefin elastomeric block segment; the novel crystallizable block copolymer may be used as it is as a molding material,... | 06/27/2006 |
| 7037996 | Composition containing polymer having ionic functional group, ink composition, and image-forming method and image-forming apparatus employing the ink composition The present invention provides an ink composition containing a pigment dispersed uniformly in a solvent and a block polymer having an ionic functional group, an image-forming method and an image-forming apparatus employing the ink composition. The composition... | 05/02/2006 |
| 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 component has a uniform distribution of both tacticity and comonomer ... | 04/25/2006 |
| 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 component has a uniform distribution of both tacticity and comonomer ... | 04/11/2006 |
| 7026040 | Oriented films from improved propylene polymers This invention relates generally to films made from crystalline polypropylene polymers. Specifically, this invention relates to films comprising crystalline polypropylene polymer compositions containing both propylene homopolymers and propylene copolymers. The compo... | 04/11/2006 |
| 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. The first polymer component has a uniform distribution of both tacti... | 04/11/2006 |
| 6992153 | Multi-stage process for the (CO) polymerization of olefins Multi-stage process for the polymerization of olefins CH2═CHR, where R is hydrogen or a C1–C10 alkyl, cycloalkyl or aryl radical, comprising: (I) a first polymerization stage carried out in the presence of a catalyst comprising t... | 01/31/2006 |
| 6962768 | Ether monomers and polymers having multi-ring structures, and photosensitive polymers and resist compositions obtained from the same Provided are a variety of monomers suitable of producing photosensitive polymers, that are in turn, useful in photoresist compositions, through radical (cationic) polymerization including at least one multi-ring alkenyl ethers and one α-fluorinated acrylate. The re... | 11/08/2005 |
| 6960631 | Catalyst composition and process for producing copolymer A method for block copolymerization of a conjugated diene and an aromatic vinyl compound, which comprises the steps of carrying out homopolymerization of the conjugated diene in the presence of a catalyst composition comprising the following components: (A) a metall... | 11/01/2005 |
| 6960676 | Method of preparing group 14 bridged biscyclopentadienyl ligands The present invention relates to ligands and the synthesis of those ligands for use in metallocene complexes. More particularly, the present invention relates to the synthesis of diarylsilyl bridged biscyclopentadienes using diarylsilyldisulfonates. Even more partic... | 11/01/2005 |
| 6956093 | Preparation of syndiotactic polybutadiene, rubber composition and tire with rubber component The present invention relates to the preparation of syndiotactic 1,2-polybutadiene polymer using a catalyst containing a carbon disulfide in which the polymerizate thereof is treated with hydrogen peroxide, to preparation of a composite of conjugated diene-based ela... | 10/18/2005 |
| 6953617 | High OTR films made from homopolymer polypropylene and 1-butene/ethylene copolymer blends A polyolefin blend having in a range of 40 to less than 90% by weight of a high modulus, isotactic polypropylene; and in a range of 10 to 60% by weight of a 1-butene/ethylene copolymer; the 1-butene/ethylene copolymer having about 0.5 to about 10 wt % of an ethylene... | 10/11/2005 |
| 6951603 | Method of producing a conductive structured polymer film A two-layered anode (1′) has a lower layer (2) including a non-conductive carrier material to which a conductive electrode layer (3′) is applied. Non-conductive areas, formed by partial removal of the electrode layer, have a predetermined st... | 10/04/2005 |
| 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 alpha-olefin sequences. In a preferred embodiment, improved thermoplasti... | 08/09/2005 |
| 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 component has a uniform distribution of both tacticity and comonomer ... | 07/26/2005 |
| 6921799 | Olefin polymerization process The invention relates to a process for the preparation of an olefin polymer comprising at least two polymerization stage in the presence of an olefin polymerization catalyst material, an olefin polymer produced by such process, and the use of such polymers for the p... | 07/26/2005 |
| 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 polypropylene in a bulk loop reactor by sequentially introducing Ziegler-Natta an... | 07/12/2005 |
| 6916886 | Propylene block copolymer To provide a propylene based block copolymer that, when used as a molding material, exhibits an extremely good stiffness-impact resistance balance and has good heat resistance and excellent moldability, and therefore, in molding, good appearance is revealed. ... | 07/12/2005 |
| 6911497 | Polypropylene resin composition, method for its production, and injection molded article A polypropylene resin composition having a melt flow rate of 70 to 120 g/10 min (at 230° C., 2.16 kgf-load), a flexural modulus of 1300 to 4000 MPa and an IZOD impact strength of 30 to 100 kJ/m2, wherein the composition is obtained by adding a small amou... | 06/28/2005 |
