| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 526194000 | Material contains Si, Te, Se, or Group VIIIA atom, e.g., He, Ne, etc. | 30 |
| 20080287622 | Polymerization of acrylic polymers in reactive diluents - The present process is directed to preparation of addition polymers in diluents that are subsequently reactive in coatings during cure, instead of in traditional hydrocarbon solvents. The polymers so prepared can be used as the main film-forming polymer in high solids coating compositions, especially those useful for finishing automobiles and truck exteriors. | 11-20-2008 |
| 20090105434 | PROCESS FOR THE PREPARATION OF PROPYLENE - Process for the preparation of propylene, wherein a diluted olefinic hydrocarbon feed, comprising in the range of 1 to 99 vol % of olefinic hydrocarbon feed and 1-99 vol % of one or more diluents, is contacted with a solid zeolite catalyst at a Gas Hourly Space Velocity, as measured at standard temperature and pressure of 23° C. and 1 bar, of at least 15,000 ml diluted olefinic hydrocarbon feed/gram zeolite catalyst/hour. | 04-23-2009 |
| 20090137758 | Polymeric nitroxides their preparation and use - The instant invention relates to a process for the preparation of polymeric nitroxide radicals by group transfer polymerization. Further aspects of the invention are the polymers containing the nitroxide radicals as well as their use, in particular as active electrode materials in organic radical batteries. | 05-28-2009 |
| 20090203862 | Molecular Sieve Catalyst Treatment - Treatment at elevated temperature and advantageously superatmospheric pressure with an inert gas, especially nitrogen, rejuvenates molecular sieve catalysts deactivated by use in liquid-phase or supercritical or dense-phase olefin oligomerization, or by use in aromatic alkylation. | 08-13-2009 |
| 20090203863 | Catalyst Composition with Mixed Selectivity Control Agent and Method - The present disclosure provides a Ziegler-Natta catalyst composition comprising a procatalyst, a cocatalyst and a mixed external electron donor comprising a first selectivity control agent, a second selectivity control agent, and an activity limiting agent. A polymerization process incorporating the present catalyst composition produces a high-stiffness propylene-based polymer with a melt flow rate greater than about 50 g/10 min. The polymerization process occurs in a single reactor, utilizing standard hydrogen concentration with no visbreaking. | 08-13-2009 |
| 20090326177 | Mesostructured Zeolitic Materials and Methods of Making and Using the Same - One aspect of the present invention relates to mesostructured zeolites. The invention also relates to a method of preparing mesostructured zeolites, as well as using them as cracking catalysts for organic compounds and degradation catalysts for polymers. | 12-31-2009 |
| 20100022729 | Synthesis Of Chabazite-Containing Molecular Sieves And Their Use In The Conversion Of Oxygenates To Olefins - In a method of synthesizing a silicoaluminophosphate molecular sieve having 90%+CHA framework type character, a reaction mixture is prepared comprising first combining a reactive source of aluminum with a reactive source of phosphorus to form a primary mixture that is aged. A reactive source of silicon and a template for directing the formation of the molecular sieve can then be added to form a synthesis mixture. Crystallization is then induced in the synthesis mixture. Advantageously, (i) the source of silicon comprises an organosilicate, (ii) the source of phosphorus optionally comprises an organophosphate, and (iii) the crystallized silicoaluminophosphate molecular sieve has a crystal size distribution such that its average crystal size is not greater than 5 μm. The molecular sieve can then preferably be used in a hydrocarbon (oxygenates-to-olefins) conversion process. | 01-28-2010 |
| 20100048844 | THIOCARBONYLTHIO COMPOUND AND FREE RADICAL POLYMERIZATION EMPLOYING THE SAME - A thiocarbonylthio compound and free radical polymerization employing the same. The thiocarbonylthio compound is represented by formula (I) or (II): | 02-25-2010 |
| 20100130709 | Procatalyst Composition Including Silyl Ester Internal Donor and Method - The present disclosure provides silyl esters and silyl diol esters suitable as internal electron donors in procatalysts for polymer production. Disclosed are procatalyst compositions formed from a procatalyst precursor and an internal electron donor that is a silyl ester or a silyl diol ester. The procatalyst compositions can be used with a cocatalyst and optionally an external electron donor and/or an activity limiting agent to form a Ziegler-Nana catalyst composition. The present catalyst compositions exhibit high catalyst activity and form olefin-based polymers with broad molecular weight distribution, favorable flexural modulus, and high isotacticity. | 05-27-2010 |
| 20100130710 | Procatalyst Composition with Multiple Internal Donor Having Silyl Ester and Method - Provided is a procatalyst composition containing a multiple internal electron donor with at least two components, one of which is a silyl ester. The other component of the mixed internal electron donor may be an electron donor component. The electron donor component may be an aromatic acid ester, a di-ether, and combinations thereof. Catalyst compositions containing the multiple internal electron donor exhibit improved hydrogen response during olefin polymerization and produce propylene-based polymers with broad molecular weight distribution, high flexural modulus, and high melt flow rate. | 05-27-2010 |
| 20100137535 | POLYSTYRENE-MALEIC ANHYDRIDE/MAGNESIUM HYDROXIDE COMPOSITE PARTICLES AND METHODS FOR PREPARING THE SAME - There are provided a composite particle comprising polystyrene and a filler, and having high levels of affinity between the filler and the polystyrene matrix, few or a small number of voids at the interface between the filler and the polystyrene matrix, and an excellent mechanical properties, and a method for preparing the same composite particle. | 06-03-2010 |
| 20100267911 | Procatalyst Composition with Silyl Glutarate and Method - Disclosed are procatalyst compositions having an internal electron donor which includes a silyl glutarate and optionally an electron donor component. Ziegler-Natta catalyst compositions containing the present procatalyst compositions exhibit strong activity and produce propylene-based olefins with high isotacticity. | 10-21-2010 |
| 20110009582 | Preparation of Activating Supports - The present invention discloses a method for preparing an activating support and its use to activate metallocene or post-metallocene catalyst component for use in the oligomerisation and polymerisation of ethylene and alpha-olefins. | 01-13-2011 |
| 20110136998 | Catalyst Composition with Mixed Selectivity Control Agent and Method - The present disclosure provides a Ziegler-Natta catalyst composition comprising a procatalyst, a cocatalyst and a mixed external electron donor comprising a first selectivity control agent, a second selectivity control agent, and an activity limiting agent. A polymerization process incorporating the present catalyst composition produces a high-stiffness propylene-based polymer with a melt flow rate greater than about 50 g/10 min. The polymerization process occurs in a single reactor, utilizing standard hydrogen concentration with no visbreaking. | 06-09-2011 |
| 20110178259 | Process to Make Olefins from Organics - The present invention relates to a process to make light olefins, in a combined XTO-OC process, from an oxygen-containing, halogenide-containing or sulphur-containing organic feedstock comprising:
| 07-21-2011 |
| 20110213111 | METHOD FOR PRODUCING POLYMER NANOCOMPOSITE, AND FLAME-RETARDANT POLYMER NANOCOMPOSITE FORMED BY THE PRODUCTION METHOD - A method for producing a polymer nanocomposite, includes: after expanding an interlayer space of a layered inorganic compound using an organic onium salt, immobilizing a radical polymerization initiator having a group represented by formula (1) on an interlayer surface of the layered inorganic compound via a covalent bond; and carrying out surface-initiated radical polymerization in a monomer from the immobilized radical polymerization initiator. Preferably, in the radical polymerization initiator having the group represented by the general formula (1), at least one of X1 to X3 in the formula is a chlorine atom, or R1 in the formula is a C1-25 alkylene group or a C2-25 alkenylene group optionally interrupted by an oxygen atom or an ester group and optionally substituted by a phenyl group: | 09-01-2011 |
| 20110301311 | SILICA-SUPPORTED OLIGOMERIC HYBRID MATERIALS - A particle-polymer hybrid material can include: a substance having the structure of Formula 1 (Z—(Y—FP) | 12-08-2011 |
| 20120004380 | Crosslink Agents and Dual Radical Cure Polymer - Crosslink agents used to copolymerize at least one hydrophilic monomer with at least one lens monomer typically used to prepare polymeric materials for ophthalmic lenses. The crosslink agents have a relatively high selectivity for the hydrophilic monomer and limited reactivity with the crosslink agent used to polymerize the lens monomer. Accordingly, the invention is also directed to a hydrophilic crosslinked polymer that comprises at least two monomeric units and at least two different crosslink units. The use of the dual crosslink system provides an improved means to control the final chemical, physical and structural characteristics of the resulting polymer. | 01-05-2012 |
| 20120136128 | ANIONIC POLYMERIZATION INITIATORS AND PROCESSES - A group of compounds defined by the general formula (I) can be used to anionically initiate polymerization of unsaturated monomers. In the formula, M is an alkali metal atom, R | 05-31-2012 |
| 20130090441 | POLYMERIZABLE COMPOSITIONS FREE OF ORGANIC EMULSIFIER AND POLYMERS AND METHODS OF MAKING THEREOF - Described herein is a polymerizable composition substantially free of an organic emulsifier, methods of making, and articles thereof. The polymerizable composition comprises: a continuous phase; a polymerizable monomer; an initiator; and inorganic nanoparticles, wherein the inorganic nanoparticles are substantially free of groups that will copolymerize with the polymerizable monomer. | 04-11-2013 |
| 20130102747 | CATIONIC POLYMERIC FLUORINATED ETHER SILANE COMPOSITIONS AND METHODS OF USE - A polymer is provided comprising a first pendant group selected from at least one of a perfluorinated ether group or a perfluoroalkanesulfonamido group, a second pendant group comprising an ammonium group, wherein the second pendant group is free of silicon, and a third pendant group comprising an ammonium group and a reactive silicon-containing group. A composition comprising the polymer is provided. The polymer and composition are useful for protecting a substrate, for example, to render the substrate oil repellent, water repellent, or both, or to provide stain repellency to the substrate. | 04-25-2013 |
| 20130109820 | CYCLIC ORGANOSILICON COMPOUNDS AS ELECTRON DONORS IN ZEIGLER-NATTA CATALYST SYSTEMS FOR PRODUCING PROPYLENE POLYMER HAVING HIGH MELT-FLOWABILITY | 05-02-2013 |
| 20130165608 | CATALYST CARRIER BASED ON SILICA GEL - The present invention relates to spherical beads comprising at least one metal and/or semimetal oxide, having a mean diameter in the range from 10 to 120 μm, a BET surface area in the range from 400 to 800 m | 06-27-2013 |
| 20130261272 | PROCESS FOR PRODUCING POLYMER-FUNCTIONALIZED FILLER PARTICLES - A process for producing polymer-functionalized filler particles and polymer-functionalized filler particles obtained by this process. The polymer-functionalized filler particles are used as additives for rubber mixtures. The polymers for functionalizing the filler particles are obtained in-situ starting from filler particles having a surface-bound RAFT agent. The binding of silyl-bearing RAFT agents and of Diels-Alder RAFT agents occurs via the R-group and the subsequent RAFT polymerization proceeds via a reactive site of the RAFT agent. | 10-03-2013 |
| 20130261273 | Process for Production of High Melt Flow Propylene-Based Polymer and Product from Same - Disclosed are catalyst compositions having an internal electron donor which includes a 3,6-di-substituted-1,2-phenylene aromatic diester. Ziegler-Natta catalyst compositions containing the present catalyst compositions exhibit very high hydrogen response, high activity, high selectivity and produce propylene-based olefins with high melt flow rate. | 10-03-2013 |
| 20130267669 | METHODS FOR PRODUCING TELECHELIC POLYOLEFINS FROM TERPENE INITIATORS - Provided herein are methods for the preparation of telechelic polyolefins via polymerization reaction with a terpene initiator. | 10-10-2013 |
| 20140275457 | Polymerization Catalysts and Polymers - A method comprising contacting a support material with a transition metal compound to produce a mixture; thermally treating the mixture in the presence of oxygen at a temperature in a range of from about 100° C. to about 500° C. for a period of from about 1 hour to about 10 hours, wherein at least a portion of the transition metal sublimes onto the support material to produce a support material comprising a dispersed transition metal; and thermally treating the support material comprising the dispersed transition metal in an oxidizing atmosphere at a temperature in a range of from about 550° C. to about 900° C. for a period of from about 1 hour to about 10 hours to produce a polymerization catalyst. | 09-18-2014 |
| 20140275458 | Methods of Preparing a Polymerization Catalyst - A method comprising contacting a silica support material with a sulfating agent to form a sulfated silica support material comprising sulfate anions; thermally treating the sulfated silica support material to form a thermally treated sulfated silica support material; contacting the thermally treated sulfated silica support material with a chromium-containing compound to form a mixture; and thermally treating the mixture to form a polymerization catalyst. A method comprising thermally treating a silica support material to form a thermally-treated silica support material; contacting the thermally-treated silica support material with a sulfating agent to form a thermally treated sulfated silica support material; thermally treating the thermally treated sulfated silica support material to form a processed silica support material; contacting the processed silica support material with a chromium-containing compound to form a precursor polymerization catalyst; and thermally treating the precursor polymerization catalyst to form a polymerization catalyst. | 09-18-2014 |
| 20150148506 | SYSTEM AND METHOD FOR RAPID TRANSITIONING OF POLYOLEFIN PROCESSES FROM ONE PRODUCT TO ANOTHER - A gas-phase polyolefin reactor system for rapidly transitioning from one polyolefin product to another is disclosed. The reactor system comprises a control valve, a high-flow valve, a polyolefin reactor, a flow meter, a totalizer and an empirical model. During a transition, the empirical model predicts a required amount based upon an initial concentration and a selected ending concentration, the flow meter measures a flow rate, the totalizer determines a totalized amount when the flow rate of the first stream reaches the required amount based upon the measured flow rate and outputs the totalized amount to the empirical model, and the empirical model compares the required amount to the totalized amount and determines a transition endpoint. A method of rapidly transitioning the reactor system from one polyolefin product to another is also disclosed. | 05-28-2015 |
| 20160108152 | SUBSTRATE FOR FLEXIBLE DISPLAY DEVICE AND FLEXIBLE DISPLAY DEVICE - A substrate for a flexible display device according to an embodiment of the present invention may include a self-supporting film where a particle has a grafted polymer chain and is disposed in two dimensions or three dimensions through the grafted polymer chain. | 04-21-2016 |
