Patent application number | Description | Published |
20090018290 | Preparation of Supported Silyl-Capped Silica-Bound Anion Activators and Associated Catalysts - A method for the preparation of olefin polymerization catalysts that are the reaction products of the catalytic reaction of surface hydroxyls of a support with a trialkyl silane to afford hydrogen and the corresponding surface bound alkyl silyl ether and at the same time with a strong Lewis acid which support is converted to a silica bound anion that in a second step is fully converted by reaction with QM | 01-15-2009 |
20090306281 | Polyolefin Adhesive Compositions and Articles Made Therefrom - Provided are adhesive compositions composed of a polyolefin composition comprising at least about 50 wt. % polypropylene and at least one wax. The polymer compositions have a Dot T-Peel of about 1 Newton or more, a branching index (g′) of 0.95 or less measured at the Mz of the polymer, a molecular weight of 100,000 or less, and the adhesive compositions has a fast set time. The packaging industry desires adhesive compositions having a fast set time, such as those setting in less than five seconds from a molten state at conventional packaging operating temperatures to a solid or quasi solid having favorable Dot T-Peel, set time, and or fiber tear adhesion properties. Polymer based adhesives performing within this window are a favorable alternative to conventional formulated adhesives. The provided adhesive compositions exhibit a favorable balance of properties such as high adhesive strength, wide temperature operating window, and fast set time. | 12-10-2009 |
20100029873 | Catalyst System And Process For Olefin Polymerization - The present application relates to a new catalyst system for the polymerization of olefins, comprising a new ionic activator having the formula: [R | 02-04-2010 |
20100059178 | Polyolefin Adhesive Compositions - An adhesive and method for hot melt application. The adhesive comprises polyolefin base polymer, from 1 to 10 wt % of at least one functionalized polyolefin, and from 1 to 15 wt % of a wax, based on the total weight of the polyolefin base polymer, functionalized polyolefin and wax, wherein the wax has a weight average molecular weight at least 8% of the weight average molecular weight of the polyolefin base polymer, viscosity at 190° C. of 60 mPa·s or more, and a crystallization temperature greater than the polyolefin base polymer and greater than 100° C., and wherein the adhesive has at least 5% fiber tear at 2° C., at least 50% fiber tear at 25° C., and a characteristic set time of less than 3 seconds. | 03-11-2010 |
20100063227 | CATALYST SYSTEMS AND POLYMERIZATION PROCESSES - A method of polymerizing olefins with catalyst systems, such as, for example, a multimodal catalyst system, wherein the catalyst system is stored at a controlled temperature to minimize loss of catalyst system productivity. | 03-11-2010 |
20100132886 | Polyolefin Adhesive Compositions - An adhesive and method for hot melt adhesive application. The adhesive comprises polyolefin base polymer and from 1 to 15 wt % of a at least two wax components, based on the total weight of the polyolefin base polymer and the at least two wax components, wherein the at least two wax components comprise a first wax component having a relatively low weight average molecular weight at least 1000 g/mole less than a second wax component having a relatively high weight average molecular weight. The adhesive may have at least 50% fiber tear at 25° C., and a characteristic set time of less than 3 seconds. The adhesive may also include from 1 to 10 wt % of at least one functionalized polyolefin. | 06-03-2010 |
20100298510 | Catalyst System and Process for Olefin Polymerization - The present application relates to a new catalyst system for the polymerization of olefins, comprising a new ionic activator having the formula: [R | 11-25-2010 |
20100305259 | Polyolefin Adhesive Compositions And Method of Making Thereof - The packaging industry desires adhesive compositions having a fast set time, such as those setting in less than five seconds from a molten state at conventional packaging operating temperatures to a solid or quasi solid having favorable Dot T-Peel, set time, and/or fiber tear adhesion properties. Polymer based adhesives performing within this window are a favorable alternative to conventional formulated adhesives. The provided adhesive compositions exhibit a favorable balance of properties such as high adhesive strength, wide temperature operating window, and fast set time. Provided are adhesive compositions composed of a polyolefin composition comprising at least about 50 mol % polypropylene, at least one wax and at least one wax modifier. | 12-02-2010 |
20110015357 | Preparation of Supported Silyl-Capped Silica-Bound Anion Activators and Associated Catalysts - A method for the preparation of olefin polymerization catalysts that are the reaction products of the catalytic reaction of surface hydroxyls of a support with a trialkyl silane to afford hydrogen and the corresponding surface bound alkyl silyl ether and at the same time with a strong Lewis acid which support is converted to a silica bound anion that in a second step is fully converted by reaction with QM | 01-20-2011 |
20110313117 | 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 difference of tacticity. The copolymers are made in the presence of a metallocene catalyst. | 12-22-2011 |
20120065054 | Catalyst Systems and Polymerization Processes - A method of polymerizing olefins with catalyst systems, such as, for example, a multimodal catalyst system, wherein the catalyst system is stored at a controlled temperature to minimize loss of catalyst system productivity. | 03-15-2012 |
20120178617 | Preparation of Supported Silyl-Capped Silica-Bound Anion Activators and Associated Catalysts - A method for the preparation of olefin polymerization catalysts that are the reaction products of the catalytic reaction of surface hydroxyls of a support with a trialkyl silane to afford hydrogen and the corresponding surface bound alkyl silyl ether and at the same time with a strong Lewis acid which support is converted to a silica bound anion that in a second step is fully converted by reaction with QM | 07-12-2012 |
20120245310 | Vinyl Terminated Higher Olefin Copolymers and Methods to Produce Thereof - This invention relates to a vinyl terminated higher olefin copolymer having an Mn of 300 g/mol or more (measured by | 09-27-2012 |
20120319318 | Cooling And Pelletizing Process For Semi-Crystalline Polymers - Methods and systems for pelletizing low molecular weight semi-crystalline polymers are provided herein. Polymer compositions comprising the semi-crystalline polymer and a solvent are provided to a devolatilizing device, where the solvent is at least partially evaporated under vacuum conditions, resulting in removal of heat from the polymer by evaporative cooling and crystallization of the polymer. Once the polymer has reached the desired temperature, the polymer exits the devolatilizer and is pelletized. Semi-crystalline polymers that may be used in the present invention include propylene-based copolymers, such as propylene-ethylene and propylene-hexene copolymers having a heat of fusion, Hf, from about 5 to about 75 J/g and a weight average molecular weight, Mw, from about 10,000 to about 200,000 g/mol. | 12-20-2012 |
20130150541 | Vinyl Terminated Higher Olefin Copolymers and Methods to Produce Thereof - This invention relates to a vinyl terminated higher olefin copolymer having an Mn of 300 g/mol or more (measured by | 06-13-2013 |
20140088277 | Functionalized Resins Obtained Via Olefin Metathesis - This invention relates to a reaction product obtained by contacting a polymer comprising units derived from dicyclopentadiene with a vinyl terminated macromonomer, a vinyl monomer or a vinylene monomer, in the presence of a metathesis catalyst, where the vinyl monomer or vinylene monomer is represented by the formula: | 03-27-2014 |