Did You Know...
...In 1790, the cost to obtain a patent was between $4 and $5.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8013085 | Method for the production of an aqueous polymer dispersion Process for preparing an aqueous polymer dispersion by polymerizing at least one ethylenically unsaturated monomer B in an aqueous medium in the presence of polymer particles A and at least one dispersant. ... | 09/06/2011 |
| 7566760 | Preparation of aqueous polymer dispersions The invention relates to a method for the production of aqueous polymer dispersions, by the polymerisation of one or more olefins in aqueous media in the presence of dispersing agents and optionally organic solvents, characterised in that the polymerisation of the o... | 07/28/2009 |
| 7462673 | Method for producing aqueous polymer dispersions Process for preparing an aqueous polymer dispersion by polymerization of at least one olefinically unsaturated compound in an aqueous medium in the presence of at least one dispersant and a solid polymerization catalyst. ... | 12/09/2008 |
| 7339006 | Metathesis-active adhesion agents and methods for enhancing polymer adhesion to surfaces The invention discloses an adhesion agent composition comprising at least one C3-C200 olefin compound having at least one metathesis active double bond, wherein the olefin is substituted or unsubstituted; and at least one compatibilizing functi... | 03/04/2008 |
| 7332550 | Stabilization of transition metal complexes for catalysis in diverse environments This present invention is directed towards the identification or design, preparation, and use of suitable transition metal complexes for use as catalysts. The transition metal complexes may comprise heterodonor ligands. The present invention is also directed toward ... | 02/19/2008 |
| 7329758 | Imidazolidine-based metal carbene metathesis catalysts The present invention relates to novel metathesis catalysts with an imidazolidine-based ligand and to methods for making and using the same. The inventive catalysts are of the formula wherein: | 02/12/2008 |
| 7285593 | Polyolefin compositions optionally having variable toughness and/or hardness The present invention provides novel polyolefin compositions having variable hardness and/or toughness properties. The polyolefin compositions include: a polyolefin prepared by the metathesis of an olefin monomer using a ruthenium or osmium carbene catalyst; and one... | 10/23/2007 |
| 7150319 | Method for reducing or completely eliminating water influx in an underground formation, and crosslinkable copolymers for implementing said method A method for reducing or completely eliminating water influx in an oil or natural gas borehole includes introducing in the borehole an aqueous solution of a copolymer comprising: A) 40–98 wt. % of structural units of formula (I), wherein: R1 is hydrogen... | 12/19/2006 |
| 7129292 | Method for the emulsion polymerization of olefins A process for emulsion polymerizing one or more olefins involves reacting it/them with at least one complex compound of the formula Ia or b where M is a transition metal from groups 7 to 10 of the Periodic Table ... | 10/31/2006 |
| 7122130 | Composition containing a polymer or copolymer of a 3,4-dialkoxythiophene and non-aqueous solvent A method for preparing a composition containing between 0.08 and 3.0% by weight of polymer or copolymer of a 3,4-dialkoxythiophene in which the two alkoxy groups may be the same or different or together represent an optionally substituted oxy-alkylene-oxy bridge, a ... | 10/17/2006 |
| 7115688 | Nanoparticles with polymer shells The invention provides a method of preparing nanoparticles having at least one polymer shell attached to them, each polymer shell having a selected property or properties. The method comprises attaching initiation monomers to the surfaces of the nanoparticles, conta... | 10/03/2006 |
| 7094898 | Ruthenium compounds, their production and use A new class of compounds is disclosed that in preferred embodiments relate to Ru-based catalysts suitable for use in olefin metathesis reactions. Such compounds demonstrate high rates of catalytic turnover in comparison with other Ru catalysts known in the art. More... | 08/22/2006 |
| 7087556 | Compositions for treating subterranean zones penetrated by well bores The present invention provides compositions of treating subterranean zones penetrated by well bores in primary well cementing operations, well completion operations, production stimulation treatments and the like. The invention includes aqueous well treating fluids ... | 08/08/2006 |
| 7087689 | Method for polymerizing styrene A method of homogeneously polymerizing styrene comprising admixing an ethylenically unsaturated monomer and an initiation system that is soluble in the monomer. This system includes a metal; a peroxide, hydroperoxide or mixture thereof; and a reductant. Under approp... | 08/08/2006 |
| 7071264 | Branched polymers and coating compositions made therefrom This invention relates to rapid curing coating compositions that are particularly useful for automotive OEM and refinish applications. The coating composition includes a crosslinkable component that contains a novel highly branched acrylic polymer, and a crosslinkin... | 07/04/2006 |
| 7064170 | Emulsifier free aqueous emulsion polymerization to produce copolymers of a fluorinated olefin and hydrocarbon olefin Provided is a process for making a copolymer of fluorinated olefin and hydrocarbon olefin selected from ethylene, propylene and mixtures thereof, the process comprising a substantially emulsifier free aqueous emulsion polymerization of said fluorinated olefin and sa... | 06/20/2006 |
| 7049360 | Water-soluble or water-dispersible (co) polymers of hydroxyalkyl (meth) acrylates, a process for their preparation, and their use as coating agent, binder and/or film-forming excipient pharmaceutical dosage forms The present invention relates to water-soluble or water-dispersible copolymers obtainable by free-radical polymerization of a) 80 to 20% by weight of hydroxy-C1–C6-alkyl (meth)acrylate and, where appropriate... | 05/23/2006 |
| 7048874 | Process for preparing an aqueous or non-aqueous solution or dispersion of a polythionphene or thiophene copolymer A process for preparing an aqueous or non-aqueous solution or dispersion of a polythiophene or thiophene copolymer, containing structural units according to formula (I): in which R1 and R2 indepen... | 05/23/2006 |
| 7009065 | Ferrocenyl ligands and the use thereof in catalysis The invention relates to bidentate organophosphorous ferrocenyl ligands containing ligands of formula (I), to their complex compounds and to their utilization in catalytic processes. ... | 03/07/2006 |
| 7001949 | Aqueous dispersions of comb copolymers and coatings produced therefrom An aqueous coating composition comprising a comb copolymer is disclosed. A method of forming a coating from the aqueous coating composition, and a coating formed by that method are also disclosed, as is a method of forming the comb copolymer. The comb copolymer is c... | 02/21/2006 |
| 6964999 | Polymer and curable composition A vinyl polymer having at least one terminal group of the general formula (1) per molecule; —OC(O)C(R)═CH2 (1) wherein R represents hydrogen or an organic group containing 1 to 20 carbon atoms; | 11/15/2005 |
| 6916891 | Attrition resistant inorganic microspheroidal particles Microspheroidal particles, suitable as fluidized bed catalyst supports, are prepared by incorporating a portion of small, preferably recycled, particles into a slurry of inorganic oxide sol and inorganic particles which is spray dried to form microspheroidal particl... | 07/12/2005 |
| 6906147 | Catalytic systems This invention relates to single-component and multi-component catalytic systems using aryl titanates. Aryl titanate compounds are useful as catalysts and co-catalysts in single-component and multi-component catalytic systems (e.g., for the polymerization of macrocy... | 06/14/2005 |
| 6897272 | α-olefins and olefin polymers and processes therefor Disclosed herein are processes for polymerizing ethylene, acyclic olefins, and/or selected cyclic olefins, and optionally selected olefinic esters or carboxylic acids, and other monomers. The polymerizations are catalyzed by selected transition metal compounds, and ... | 05/24/2005 |
| 6894111 | Organic electrochromic materials and polymers for optical attenuation in the near infrared region The invention provides generally a new type of organic electrochromic Near Infrared (NIR)-active materials capable of absorbing and attenuating the light in the NIR region around 1550 nm and forming thin films on electrodes for variable optical attenuator (VOA) appl... | 05/17/2005 |
| 6887956 | Catalyst system for high-cis polybutadiene A catalyst system suitable for use in the production of high cis polybutadiene is disclosed. The catalyst system includes a cobalt salt of the formulaCoAx?, where A is a monovalent or divalent anion and x is 1 or 2; an alkyl aluminum chloride compound of ... | 05/03/2005 |
| 6888018 | ORGANOMETALLIC COMPOUND HAVING HIGH METATHESIS ACTIVITY AND METHOD FOR PREPARATION THEREOF, METHATHESIS REACTION CATALYST COMPRISING THE COMPOUND, METHOD OF POLYMERIZATION USING THE CATALYST, AND POLYMER PRODUCED BY THE METHOD OF POLYMERIZATION The present invention provides an organometallic compound represented by the general formula (1) or (2), process for producing the same, metathesis reaction catalyst containing the same, polymerization process using the same catalyst and polymer produced by the same... | 05/03/2005 |
| 6858763 | Process for preparing elastomeric ethylene-hexafluoropropylene copolymer The present invention relates to a process for preparing an elastomeric ethylene-hexafluoropropylene copolymer with excellent vulcanization properties, which comprises emulsion polymerizing ethylene, hexafluoropropylene and when in demand, a monomer copolymerizable ... | 02/22/2005 |
| 6800699 | Process for the production of aqueous polymer dispersions Process for the production of aqueous polymer dispersions by reaction of one or more olefinically unsaturated compounds in aqueous medium in the presence of a complex compound which possesses the structural element Y—M—E, E standing for nitrogen, M for a transit... | 10/05/2004 |
| 6747102 | Method for radical aqueous emulsion polymerization In a process for the free radical-initiated aqueous emulsion polymerization for the preparation of an aqueous polymer dispersion, ethylenically unsaturated monomers are polymerized by means of a free radical polymerization initiator in the presence of organometallic... | 06/08/2004 |
| 6737483 | Method for polymerising olefins in the presence of water The invention concerns a method for polymerising at least one olefin in the presence of at least a catalyst comprising a sequence E—M—X wherein E represents an oxygen or sulphur atom; M represents a nickel or palladium or platinum atom; X represents a phosphorus... | 05/18/2004 |
| 6713557 | Redox system and process A process for preparing an aqueous emulsion polymer including providing at least one ethylenically unsaturated monomer and a free radical redox initiator system under emulsion polymerization conditions, the redox initiator system including an oxidant; a reductant an... | 03/30/2004 |
| 6696518 | Method of selectively hydrogenating ethylenically unsaturated double bonds in polymers The present invention relates to a process for hydrogenating ethylenically unsaturated double bonds in polymers P by reacting an aqueous dispersion of at least one polymer P with hydrogen in the presence of at least one hydrogenation catalyst comprising a... | 02/24/2004 |
| 6683146 | Heterogeneous polymerization catalyst, process for producing acrylic polymer, and acrylic polymer A process for producing an acrylic polymer capable of providing a polymer controlled in molecular weight and free of colorization, and a heterogeneous polymerization catalyst used in the process for producing an acrylic polymer are provided. The heterogen... | 01/27/2004 |
| 6664347 | Polybutadiene and process for producing the same Modified polybutadiene having a high-cis and low-trans structure with a moderate 1,2-structure content and exhibiting improved characteristics such as cold flow properties, which is obtained by modifying starting polybutadiene having a Tcp/ML1+4 | 12/16/2003 |
| 6635725 | Method for producing ethylene-vinyl acetate copolymer aqueous emulsion A method for producing an ethylene-vinyl acetate copolymer aqueous emulsion is provided which uses a redox catalyst comprising a transition metal salt and an erysorbic acid and/or an ascorbic acid, as the reducing agent thereof, and 1.8 to 10 mol of hydro... | 10/21/2003 |
| 6632908 | Bonding system having adherence to low energy surfaces The present invention is directed to (meth)acrylate compositions useful for bonding substrates including metals, plastics, and glass to similar or different substrates, in particular, low energy surfaces. The invention also provides an initiator system fo... | 10/14/2003 |
| 6602960 | Polymers and copolymers prepared or modified by using cobalt complexes A polymerization process comprising the steps of admixing a halogen-containing compound, monomer, and a cobalt complex.... | 08/05/2003 |
| 6573345 | Catalyst compositions and processes for olefin oligomerization and polymerization The present invention is directed to processes of polymerizing olefin monomers and copolymerizing olefin monomer(s) with functionalized alpha-olefin monomers in the presence of certain late transition metal pyrrolaldimine chelates, especially bidenate ... | 06/03/2003 |
| 6566457 | Impact modifiers prepared from (partially) hydrogenated butadiene-containing dispersions The invention relates to a process for preparing graft rubbers built up from at least one graft core and from at least one graft shell, comprising a) preparing an aqueous dispersion of at least one elastomeric polymer, b) then, to obtain the at least one graft core... | 05/20/2003 |
