Patents Assigned to Evonik Corporation
-
Patent number: 10821080Abstract: The present disclosure relates to processes for preparing microparticles using an emulsion process where both a solvent and a salt are used in the continuous phase of the emulsion. The present disclosure also relates to microparticles having an angle of repose of ?35, as measured using a Hele-Shaw cell.Type: GrantFiled: September 18, 2009Date of Patent: November 3, 2020Assignee: Evonik CorporationInventors: Adrian Raiche, Jason Campbell, Heather Nettles, Allison Womack
-
Patent number: 10669383Abstract: Spheroid polymer particles are prepared from non-spheroid particles by heating the non-spheroid particles in a liquid medium to a temperature that is above the glass transition temperature or the melting temperature of the polymer and then cooling.Type: GrantFiled: October 30, 2007Date of Patent: June 2, 2020Assignee: Evonik CorporationInventors: Jason N. Campbell, Bruce W. Hudson
-
Patent number: 10604695Abstract: Salt-tolerant friction-reducing terpolymer compositions are provided. The compositions can be used in a method of reducing friction resulting from turbulent flow in an aqueous fracturing fluid in a subterranean fracturing process.Type: GrantFiled: May 29, 2018Date of Patent: March 31, 2020Assignee: Evonik CorporationInventor: Cruise Kenneth Jones
-
Publication number: 20200039822Abstract: The use of a single phase aqueous hydrogen peroxide composition, comprising from 5 to 75% by weight of hydrogen peroxide and from 3 to 150 mg/kg of at least one alkyl phosphate, the composition having a total organic carbon content from organic compounds other than alkyl phosphates of less than 200 mg/kg, reduces foam formation in a method for producing chlorine dioxide by reacting an alkali chlorate with hydrogen peroxide composition in an acidic aqueous medium boiling at sub-atmospheric pressure.Type: ApplicationFiled: September 28, 2017Publication date: February 6, 2020Applicant: Evonik CorporationInventors: Gregory Melenkevitz, Gerhard Arnold, Larry Vail
-
Publication number: 20190375643Abstract: A modified colloidal silica is produced by mixing an effective amount of an alkyl silicate to form a colloidal silica, followed by treating the colloidal silica with an effective amount of a polyethersilane to form a modified colloidal silica.Type: ApplicationFiled: June 10, 2019Publication date: December 12, 2019Applicants: Evonik Degussa GmbH, Evonik CorporationInventors: Zhifeng LI, Helmut Mack
-
Patent number: 10463619Abstract: Compositions and methods of making and using of microparticle compositions that provide faster flow or improved injectability through smaller or small-diameter needles have been developed. Notably, the microparticle compositions can be successfully delivered or administered through smaller-diameter needles than other microparticle compositions prepared from biocompatible or biodegradable polymers including, for example, poly(lactide), poly(lactide-co-glycolide), polycaprolactone, or poly-3-hydroxybutyrate. The microparticle compositions can exhibit a higher solids loading for a given needle size and/or faster flow through needles than other microparticle compositions. Further, blending or mixing the polymer of the microparticle composition with other polymer formulations can enhance the injectability of the resulting formulation.Type: GrantFiled: December 3, 2015Date of Patent: November 5, 2019Assignees: TEPHA, INC., EVONIK CORPORATIONInventors: Peter Markland, Gary Anthony Winchester, Thomas Robert Tice, David P. Martin
-
Publication number: 20190264042Abstract: This invention is directed to a polymerizable, cold-curing (meth)acrylate system for floor coating.Type: ApplicationFiled: September 21, 2017Publication date: August 29, 2019Applicants: Evonik Roehm GmbH, Evonik CorporationInventors: William G. HEIBER, Levi F. SCOTT, Oliver SCHMIDT, Alexander KLEIN
-
Publication number: 20190241747Abstract: An unsaturated silane is used in methods and compositions for improving the gloss, matte and ultraviolet-curing efficiency properties of ultraviolet-curable compositions, adhesives and sealants.Type: ApplicationFiled: February 6, 2019Publication date: August 8, 2019Applicant: Evonik CorporationInventors: Jacob SHEVRIN, Sheba Bergman
-
Patent number: 10307732Abstract: The present invention relates to a fast particulate superabsorbent polymer composition comprising a polymer comprising a neutralized aluminum salt solution applied to the surface of a particulate superabsorbent polymer; wherein an aqueous solution of the neutralized aluminum salt has a pH value from about 5.5 to about 8; and subsequent to subjecting the particulate superabsorbent polymer composition to the Processing Test, the particulate superabsorbent polymer composition has a permeability stability index of from about 0.60 to about 0.99, and a compressibility from 1.30 mm2/N to about 4 mm2/N as measured by the Compression Test, and wherein the particulate superabsorbent polymer composition may have a Vortex time of from 25 to 60 seconds and absorbency under load at 0.9 psi of from 15 to 21 g/g.Type: GrantFiled: April 7, 2014Date of Patent: June 4, 2019Assignee: Evonik CorporationInventors: Gonglu Tian, Matthew Thomas Ondisco, David L. Bergman, Bernfried Messner, Scott J. Smith, Michael M. Azad, Mark Joy
-
Patent number: 10272044Abstract: The apparatus and methods of the present invention are of use for the production of emulsion-based microparticles containing a biological or chemical agent. In particular, the apparatus provides a vessel; packing material situated inside such vessel and may further provide material capable of insertion into both ends of said vessel for enclosure of the packing material. In a particular embodiment, the apparatus is a packed bed apparatus. The methods include production of emulsion based microparticles containing a biological or chemical agent. The usefulness of the present invention is that the apparatus and methods of the present invention provide for a low-shear, non-turbulent, production of emulsion-based microparticles that provides a narrow, reproducible, particle size distribution, capable of use with both large and small volumes that is capable of being conveniently scaled up while providing predictable emulsion properties.Type: GrantFiled: November 14, 2014Date of Patent: April 30, 2019Assignee: Evonik CorporationInventor: Ehud Zeigerson
-
Patent number: 10258941Abstract: Disclosed herein are apparatus and methods for producing emulsions, and, in particular, for maintaining laminar flow during production of emulsions containing microsuspensions. Disclosed herein are columns for receiving a packing material that permits fluid flow through the column. The columns have a periphery that defines an interior cavity in fluid communication with inlets and outlets of the column. Disclosed herein is a method of preparing an emulsion that includes (1) forming a first phase typically containing an organic solvent, a polymer, and one or more biologically active agents and/or chemicals; (2) forming a second phase typically containing water as the second solvent, an emulsion stabilizer and optionally a solvent; and (3) passing the first and the second phases through the column to form a “water in oil” type emulsion.Type: GrantFiled: December 22, 2011Date of Patent: April 16, 2019Assignee: Evonik CorporationInventors: Bruce W. Hudson, Gary W. Opperman, Adrian T. Raiche
-
Publication number: 20180155604Abstract: The organophilic clay comprises a smectite-type clay ion exchanged with quaternary ammonium ions, where at least 75 mol-% of said quaternary ammonium ions are bis-(2-hydroxypropyl)-dimethylammonium fatty acid esters and at least 90% of the fatty acid moieties of the bis-(2-hydroxypropyl)-dimethylammonium fatty acid esters have a structure RC(O) with group R being a linear alkyl or alkenyl group containing from 9 to 21 carbon atoms. The organophilic clay is useful for thickening oil based compositions, in particular drilling fluids for drilling oil or gas wells, comprising an oil phase.Type: ApplicationFiled: December 4, 2017Publication date: June 7, 2018Applicant: Evonik CorporationInventors: Sarah Smith, Gary Davis, Dennis Parrish, Miyako Hisamoto
-
Patent number: 9982184Abstract: Salt-tolerant friction-reducing terpolymer compositions are provided. The compositions can be used in a method of reducing friction resulting from turbulent flow in an aqueous fracturing fluid in a subterranean fracturing process.Type: GrantFiled: April 19, 2016Date of Patent: May 29, 2018Assignee: Evonik CorporationInventor: Cruise Kenneth Jones
-
Patent number: 9504643Abstract: Disclosed herein are compositions comprising cross-linkers for cross-linking a retention vehicle polymer. The compositions are particularly useful for local administration of a bioactive agent, wherein prolonged or extended availability of the bioactive agent at the site of administration is desired. Also disclosed are methods of delivering the compositions to a subject.Type: GrantFiled: March 29, 2011Date of Patent: November 29, 2016Assignee: Evonik CorporationInventors: Thomas R. Tice, Kevin W. Burton
-
Patent number: 9486416Abstract: The present invention relates to emulsion and double-emulsion based processes for preparing microparticles. The invention also relates to workhead assemblies for in-line flow-through mixing devices that can be used for mixing two or more fluids. The workhead assemblies can be used with the processes for preparing microparticles.Type: GrantFiled: December 15, 2010Date of Patent: November 8, 2016Assignee: Evonik CorporationInventors: Gary Winchester, Peter Markland
-
Patent number: 9440220Abstract: The present invention further relates to a particulate superabsorbent polymer composition comprising a crosslinker composition that is the reaction product selected from (i) saturated amines and/or saturated polyamines with ethylenically unsaturated glycidyl compounds and/or ethylenically unsaturated polyglycidyl compounds, (ii) ethylenically unsaturated amines and/or ethylenically unsaturated polyamines with saturated glycidyl compounds and/or saturated polyglycidyl compounds, or (iii) ethylenically unsaturated amines and/or ethylenically unsaturated polyamines with ethylenically unsaturated glycidyl compounds and/or ethylenically unsaturated polyglycidyl compounds; and a surface crosslinking agent applied to the particle surface. The present invention further relates to an absorbent article that includes such particulate superabsorbent polymer compositions.Type: GrantFiled: December 30, 2011Date of Patent: September 13, 2016Assignee: Evonik CorporationInventors: Matthias Naumann, Stanley A. McIntosh, Frank Schubert, Christoph Loick
-
Patent number: 9399018Abstract: Described herein are implant devices, kits comprising the implant devices, and methods of making and using the devices and kits. In one aspect, a plurality of implant devices comprises at least two implants that exhibit a different release profile of a bioactive agent. In another aspect, an implant device comprises one or more adjoined polymer bodies, wherein at least two of the polymer bodies provide a different release profile of a bioactive agent. In another aspect, a kit comprises one or more disclosed implant devices. In another aspect, methods of delivering a bioactive agent to a subject comprise administering to the subject one or more disclosed implant devices.Type: GrantFiled: September 16, 2010Date of Patent: July 26, 2016Assignee: Evonik CorporationInventors: Bruce W. Hudson, Peter Markland
-
Patent number: 9399019Abstract: The described invention provides a biodegradable, biocompatible delivery system of flowable sustained release microparticulate composition of a substantially pure crystalline form of a bioactive agent such as, for example, nimodipine, a process of preparing a therapeutic form of a substantially pure crystalline form of the bioactive agent and a method for treating an interruption of a cerebral artery in a subarachnoid space at risk of interruption caused by brain injury in a mammal, which reduces signs or symptoms of at least one delayed complication associated with brain injury.Type: GrantFiled: March 13, 2013Date of Patent: July 26, 2016Assignees: Evonik Corporation, Edge Therapeutics, Inc.Inventors: R. Loch Macdonald, Cara R. Davis, Kevin Burton, Gary Winchester, Angela R. Stella, Parissa Heshmati
-
Patent number: 9375507Abstract: The present invention relates to a particulate superabsorbent polymer composition comprising a polymer comprising a neutralized aluminum salt solution applied to the surface of a particulate superabsorbent polymer; wherein an aqueous solution of the neutralized aluminum salt has a pH value from about 5.5 to about 8 and the particulate superabsorbent polymer composition has a mean particle size distribution of from 300 to 400 ?m, an original Free Swell Gel Bed Permeability (FSGBP) of about 20×10?8 cm2 to about 200×10?8 cm2; and subsequent to subjecting the particulate superabsorbent polymer composition to the Processing Test, the particulate superabsorbent polymer composition has a permeability stability index of from about 0.60 to about 0.99 and having particles having a particle diameter of larger than 600 ?m in an amount of less than about 15 wt % of the particulate superabsorbent polymer composition and as specified by standard sieve classification.Type: GrantFiled: January 17, 2014Date of Patent: June 28, 2016Assignee: Evonik CorporationInventors: Gonglu Tian, Matthew Thomas Ondisco, David L. Bergman, Bernfried Messner, Scott J. Smith, Mark Joy
-
Patent number: 9302248Abstract: The present invention relates to a particulate superabsorbent polymer composition having improved stability comprising a polymer comprising from about 0.01 wt % to about 5 wt % of a neutralized aluminum salt solution applied to the surface of a particulate superabsorbent polymer; wherein an aqueous solution of the neutralized aluminum salt has a pH value from about 5.5 to about 8 and the particulate superabsorbent polymer composition has an original Free Swell Gel Bed Permeability (FSGBP) of about 20×10?8 cm2 to about 200×10?8 cm2 and a compressibility of from about 1.30 mm2/N to about 4 mm2/N prior to subjecting the particulate superabsorbent polymer composition to a Processing Test; and subsequent to subjecting the particulate superabsorbent polymer composition to the Processing Test, the particulate superabsorbent polymer composition has a permeability stability index of from about 0.60 to about 0.99.Type: GrantFiled: April 10, 2013Date of Patent: April 5, 2016Assignee: Evonik CorporationInventors: Gonglu Tian, Matthew Thomas Ondisco, David L. Bergman, Bernfried Messner, Scott J. Smith