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| Number | Title | Issue Date |
| 8034886 | Process for manufacturing high to ultra high molecular weight polymers using novel bridged metallocene catalysts The present invention relates to a process of manufacturing high, very high, and ultra high molecular weight polymers comprising predominantly ethylene monomers. Ethylene is reacted in the presence of a catalyst system to produce a polymer having a viscosimetrically... | 10/11/2011 |
| 7618714 | Composite body made from polyacetal, bonding agent and polyolefin, method for production and use thereof Composite products are described and encompass at least one polyacetal molding and at least one polyolefin molding, which have been bonded at at least one of their surfaces using an adhesion-promoting layer which is substantially composed of a copolymer or of a mixt... | 11/17/2009 |
| 7534922 | Processes for the manufacture of acetals A process for preparing acetals from aldehydes and alcohols is carried out by generating a reaction/distillation zone charged with an acidic fixed bed catalyst in a distillation column, feeding the aldehyde and the alcohol to the reaction/distillatlon zone and at le... | 05/19/2009 |
| 7419720 | Conductive plastic molding material, the use thereof and moulded bodies produced therefrom The present invention relates to a plastics molding composition based on polyarylene sulfide and/or on liquid-crystalline plastic, where the molding composition comprises carbon black and graphite and/or metal powder, the carbon black has a specific surface area of ... | 09/02/2008 |
| 7410696 | Polyoxymethylene fibers, production thereof and use thereof Described are fibers comprising a polyoxymethylene copolymer having an ISO 1133 MVR melt index (determined at 190° C. under a load of 2.16 kg) in the range from 0.3 to 30 ml/10 min which possess a bend recovery (measured by the double loop method in air and/or wate... | 08/12/2008 |
| 7301055 | Process for removing methanol from formaldehyde-containing solutions Process for removing methanol from formaldehyde-containing solutions. The present invention relates to a process for removing methanol from formaldehyde-containing solutions, with methanol being converted into formaldehyde dimethyl acetal by reactive distillation in... | 11/27/2007 |
| 7252918 | Hot-roller fixing toner for developing electrostatically charged images This invention relates to a toner for developing an electrostatically charged image of a heat roller type copier or printer, the toner consisting essentially of a binder resin, a colorant and a charge control agent, in which the binder resin at least includes a poly... | 08/07/2007 |
| 7171746 | Process for applying conductor tracks to the surface of plastics moldings A process is described in which surfaces of foamed plastics are provided with electrical conductor tracks, with the aid of selectively ablating processes. The process permits low-cost production of moldings from plastic with conductor tracks integrated on the... | 02/06/2007 |
| 7169887 | Thermoplastic molding material and moulded bodies produced therefrom A thermoplastic molding composition is described comprising a) from 20 to 99% by weight of a thermoplastic polymer other than a polyoxymethylene homo- or copolymer, from 0.1 to 80% by weight of a filler and/or reinforcing material, and c) 0.00001 to 1.0% by weight o... | 01/30/2007 |
| 7157532 | Method for the production of olefin polymers and selected catalysts A process for preparing olefin homopolymers or copolymers by polymerization of at least one olefin in a hydrocarbon (mixture) in the presence of a molar mass regulator, a mixed catalyst and a substance which increases the electrical conductivity of the hydrocarbon (... | 01/02/2007 |
| 7141636 | Method for producing a polymer The present invention relates to a process for preparing a catalyst, a novel polymer and a process for preparing the polymer. In particular, the invention provides a process for preparing a homopolymer and/or copolymer having an irregular particle structure and ... | 11/28/2006 |
| RE39182 | Process for the preparation of thermally stable polyoxymethylene copolymers A process for the preparation of polyoxymethylene copolymers, wherein 1,3,5-trioxane is polymerized with generally known comonomers in the presence of a strong protonic acid initiator and in the presence of a formaldehyde dialkyl acetal, and wherein the initiator is... | 07/11/2006 |
| 7049040 | Electrostatically charged image developing toner containing a polyolefin resin having a cyclic structure A toner for development of an electrostatically charged image, said toner comprising a binder resin, a colorant, a function imparting agent, and a charge control agent, wherein said binder resin at least contains a polyolefin resin having a cyclic structure, said po... | 05/23/2006 |
| 7049382 | Activated carbon filter The present invention relates to a novel polymer as binder for producing activated carbon filters. The polymer of the invention is a polyethylene homopolymer and/or copolymer having a melt flow index (MFI 190/15) of from 1.2 g/10 min to 10 g/10 min, a polydispersity... | 05/23/2006 |
| 7026401 | Method of producing amorphous polyolefins with a wide mole weight distribution The present invention relates to a process for producing a bimodal or multimodal mixture of amorphous polyolefins having a different molar mass, in which at least one amorphous polyolefin having a high molar mass is brought into contact and mixed with at least one a... | 04/11/2006 |
| 7022805 | Process for the preparation of acetal polymers The present invention relates to a process for the preparation of acetal polymers, in particular of polyoxymethylene (POM) by cationic polymerization where organophosphonic and/or organophosphinic acids and/or their derivatives and/or their precursors are used as th... | 04/04/2006 |
| 7001959 | Polyoxymethylene copolymers, their preparation and use Copolymers are described containing blocks of the structural repeat units of the formula I and blocks containing structural units of the formula II [—O—CH2—]x, (I) [—O—R1—], (II) wh... | 02/21/2006 |
| 6881291 | Process for bonding conductor tracks to plastics surfaces In the process described, the surfaces of plastics are provided with electrical conductor tracks with the aid of laser beams. The process permits the production of moldings made from plastic with integrated conductor tracks which are less expensive and can be... | 04/19/2005 |
| 6875517 | Composite shape part containing polyarylene sulfide and silicon rubber The present invention describes a composite molding comprising at least one polyarylene sulfide and at least one single- or multicomponent silicone rubber. The present invention further describes a process for the production of a composite molding, where molding is ... | 04/05/2005 |
| 6874644 | Method of and appliance for material separation The invention relates to a method of material separation, in which a material, which comprises at least a first material component and a second material component, is introduced, together with a washing fluid, into a container with at least one sedimentation chamber... | 04/05/2005 |
| 6852677 | Polyoxymethylene moulding compound containing a lubricant, the use thereof and moulded bodies produced therefrom Polyoxymethylene with addition of a lubricant mixture composed of an aliphatic ester and of a polyethylene wax improves in-feed behavior into the injection-molding machine without substantially changing tribological behavior, when comparison is made with a polyoxyme... | 02/08/2005 |
| 6846602 | Full-color toner for oil-less fixing The object of the present invention is to provide a full-color toner for oil-less fixing that is able to maintain adequate image density over a long period of time in all types of environments even in the case of continuous printing of a large number of sheets, does... | 01/25/2005 |
| 6818590 | Method for absorbing contaminants The present invention relates to an absorbent comprising at least one cycloolefin copolymer which contains polymerized units which are derived from at least one cyclic and at least one acyclic olefin. ... | 11/16/2004 |
| 6818132 | Method and device for separating solids from a liquid phase The present invention relates to a process and an apparatus for separating separating polymeric from one or more by-products of preparation of the polymer and a first liquid phase, wherein the solid in a first liquid phase is brought into contact with a second liqui... | 11/16/2004 |
| 6794032 | Long-fiber reinforced polyolefin plastic structure and shaped bodies formed therefrom The present invention relates to a long-fiber-reinforced polyolefin structure with a length of ≧3 mm, comprising from 0.1 to 90% by weight of at least one polyolefin, from 0.1 to 50% by weight of at least one polyamide, from 0.1 to 15% by weight of at least one mo... | 09/21/2004 |
| 6790577 | Toner for electrostatically charge image development A toner for developing an electrostatically charged image, which is constituted with a microcapsule toner particle composed of a core and a shell, the core comprising a colorant and a binder resin containing an olefin copolymer having a cyclic structure, said olefin... | 09/14/2004 |
| 6790385 | Slip-modified, electrically conductive polyoxymethylene Polyoxymethylene with addition of conductivity black and of a lubricant mixture composed of a lubricant with predominantly external lubricant action and of a lubricant with predominantly internal action, and also with addition of an impact-modifier component provide... | 09/14/2004 |
| 6770736 | Activated carbon filter The present invention relates to a novel polymer as binder for producing activated carbon filters. The polymer of the invention is a polyethylene homopolymer and/or copolymer having a melt flow index (MFI 190/15) of from 1.2 g/10 min to 10 g/10 min, a polydispersity... | 08/03/2004 |
| 6767966 | Polymer mixture containing an amorphous polyolefin which contain cycloaliphatic olefins The present invention describes a novel transparent polymer mixture with modified relaxation behavior and modified shrinkage behavior, comprising cycloolefin polymers. The polymer mixture comprises at least one amorphous polyolefin. The polymer mixture is used to pr... | 07/27/2004 |
| 6762265 | Microstructured components The invention relates to microstructured components comprising at least one cycloolefin copolymer, to a process for producing these microstructured components, and also to the use of these microstructured components. ... | 07/13/2004 |
| 6759458 | Thermoplastic molding composition and its use for laser welding A black thermoplastic molding composition which containing a dye combination made from nonabsorbing, non-black polymer-soluble dyes which produce a black thermoplastic molding composition which is translucent or transparent to laser light. ... | 07/06/2004 |
| 6753406 | Process and means for reducing formaldehyde emission during the processing of thermoplastics with admixed polyacetal The present invention relates to a process for reducing formaldehyde emission from thermoplastics mixed with polyacetal, which comprises melting the thermoplastic mixture in the presence of at least one stabilizer in a mixing assembly and subjecting it to further pr... | 06/22/2004 |
| 6734282 | Method and device for separating solids from polymer solutions The present invention relates to a process for separating a dissolved polymer from solids, wherein the solid is separated off by sedimentation and the sedimented solid is washed in countercurrent with a solvent. The present invention further relates to a process for... | 05/11/2004 |
| 6596810 | Blends of cycloolefin and core/shell polymers Polymer alloy comprising a) one or more cycloolefin copolymers and b) one or more types of core/shell particles.... | 07/22/2003 |
| 6593452 | Fibers made of cycloolefin copolymers The present invention relates to a fiber which comprises at least one partly crystalline cycloolefin copolymer which can be prepared by polymerization of a symmetrical polycyclic olefin, an acyclic olefin and, if desired, a monocyclic olefin in the presen... | 07/15/2003 |
| 6538102 | Method for producing sulfur-containing polymers The present invention relates to a process for preparing sulfur-containing polymers from at least one sulfide and from at least one aromatic dihalogen compound in at least one solvent, where a) a mixture made from a sulfide and from a solvent is prepared ... | 03/25/2003 |
| 6521830 | Housing for electrical or electronic devices with integrated conductor tracks A housing for electrical or electronic devices or components comprises a molding (1) of thermoplastic material which has at selected locations on its surface electrical conductor tracks (5) with contact pins (3, 6) attached at predetermined locations, the... | 02/18/2003 |
| 6497782 | Composite article from engineering thermoplastics and polyurethane elastomers, using an adhesion promoter A process for producing a composite article from at least one polar thermoplastic, in particular an engineering thermoplastic, and from at least one foamed or unfoamed polyurethane elastomer, where a molding is firstly molded from the thermoplastic, and s... | 12/24/2002 |
| 6489388 | Polyoxymethylene moldings having improved resistance to diesel fuel and aggressive gasoline It has been found that, in particular, a molding composition comprising (A) from 80 to 99.8% by weight of a polyoxymethylene homopolymer or copolymer, (B) from 0.1 to 10% by weight of a polyalkylene glycol and (C) from 0.1 to 10% by weight of a zinc oxide... | 12/03/2002 |
| 6489033 | Electrets Electrets can be produced from cycloolefin copolymers (COCs), and charges applied thereto are stable for long periods, even at high temperatures and high relative humidities. The reduction here in a positive charge applied to the COCs is smaller than that... | 12/03/2002 |
