Patents by Inventor Anteneh Z. Worku
Anteneh Z. Worku has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9752010Abstract: A process for making a phosphorus-containing compound is disclosed. The process comprises contacting a compound of formula (A) wherein RA and RB are selected from optionally substituted aryl, aryloxy, alkyl and alkoxy groups or can be combined to form cyclic structures; and RC is methyl, ethyl, isopropyl, n-butyl, i-butyl, t-butyl, phenyl or benzyl; and a compound of formula (B) wherein R1-R4 are selected from optionally substituted aryl, aryloxy, alkyl and alkoxy groups. The phosphorus-containing compound can then be used as a flame retardants for polymers, especially for epoxy, polyurethane, thermosetting resins and thermoplastic polymers. Such flame retardant-containing polymers can be used to make protective coating formulations and ignition-resistant fabricated articles, such as electrical laminates, polyurethane foams, and various molded and/or foamed thermoplastic products.Type: GrantFiled: July 11, 2016Date of Patent: September 5, 2017Assignee: BLUE CUBE IP LLCInventors: Anteneh Z. Worku, Michael J. Mullins
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Publication number: 20160319107Abstract: A process for making a phosphorus-containing compound is disclosed. The process comprises contacting a compound of formula (A) wherein RA and RB are selected from optionally substituted aryl, aryloxy, alkyl and alkoxy groups or can be combined to form cyclic structures; and RC is methyl, ethyl, isopropyl, n-butyl, i-butyl, t-butyl, phenyl or benzyl; and a compound of formula (B) wherein R1-R4 are selected from optionally substituted aryl, aryloxy, alkyl and alkoxy groups. The phosphorus-containing compound can then be used as a flame retardants for polymers, especially for epoxy, polyurethane, thermosetting resins and thermoplastic polymers. Such flame retardant-containing polymers can be used to make protective coating formulations and ignition-resistant fabricated articles, such as electrical laminates, polyurethane foams, and various molded and/or foamed thermoplastic products.Type: ApplicationFiled: July 11, 2016Publication date: November 3, 2016Inventors: Anteneh Z. Worku, Michael J. Mullins
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Patent number: 9388297Abstract: A process for making a phosphorus-containing compound is disclosed. The process comprises contacting a compound of formula (A) wherein RA and RB are selected from optionally substituted aryl, aryloxy, alkyl and alkoxy groups or can be combined to form cyclic structures; and RC is methyl, ethyl, isopropyl, n-butyl, i-butyl, t-butyl, phenyl or benzyl; and a compound of formula (B) wherein R1-R4 are selected from optionally substituted aryl, aryloxy, alkyl and alkoxy groups. The phosphorus-containing compound can then be used as a flame retardants for polymers, especially for epoxy, polyurethane, thermosetting resins and thermoplastic polymers. Such flame retardant-containing polymers can be used to make protective coating formulations and ignition-resistant fabricated articles, such as electrical laminates, polyurethane foams, and various molded and/or foamed thermoplastic products.Type: GrantFiled: May 1, 2012Date of Patent: July 12, 2016Assignee: BLUE CUBE IP LLCInventors: Anteneh Z. Worku, Michael J. Mullins
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Publication number: 20150319858Abstract: A composition comprising: a) an epoxy resin; b) a hardener; and c) a stabilizer comprising a metal-containing compound, the metal-containing compound comprising a metal selected from the group consisting of Group 11-13 metals and combinations thereof, wherein the composition is prepared from a halogen-containing compound is disclosed.Type: ApplicationFiled: July 15, 2015Publication date: November 5, 2015Inventors: Tomoyuki Aoyama, Frank Y. Gong, Bernd Hoevel, Michael J. Mullins, Perrin Shao Ping Ren, Joey W. Storer, Hung-Jue Sue, Ludovic Valette, Anteneh Z. Worku, Raymond J. Thibault
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Patent number: 8969446Abstract: The present invention is a flame-retardant polyurethane composition comprising (a) a thermoplastic polyurethane-based resin component, (b) a phosphorus flame retardant particulate filler, and (c) a low melting temperature phosphorus flame retardant agent.Type: GrantFiled: July 30, 2008Date of Patent: March 3, 2015Assignee: Dow Global Technologies LLCInventors: Geoffrey D. Brown, Given Jing Chen, Kawai Peter Pang, Robert F. Eaton, Manish Mundra, Anteneh Z. Worku
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Publication number: 20140249253Abstract: A process for making a phosphorus-containing compound is disclosed. The process comprises contacting a compound of formula (A) wherein RA and RB are selected from optionally substituted aryl, aryloxy, alkyl and alkoxy groups or can be combined to form cyclic structures; and RC is methyl, ethyl, isopropyl, n-butyl, i-butyl, t-butyl, phenyl or benzyl; and a compound of formula (B) wherein R1-R4 are selected from optionally substituted aryl, aryloxy, alkyl and alkoxy groups. The phosphorus-containing compound can then be used as a flame retardants for polymers, especially for epoxy, polyurethane, thermosetting resins and thermoplastic polymers. Such flame retardant-containing polymers can be used to make protective coating formulations and ignition-resistant fabricated articles, such as electrical laminates, polyurethane foams, and various molded and/or foamed thermoplastic products.Type: ApplicationFiled: May 1, 2012Publication date: September 4, 2014Applicant: Dow Global Technologies LLCInventors: Anteneh Z. Worku, Michael J. Mullins
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Patent number: 8710125Abstract: The invention provides a polyolefin composition comprising: A) a propylene-based polymer having a flex modulus of greater than 1500 MPa and an HDT of greater than 100° C.; B) an ethylene/?-olefin interpolymer having Tg of less than ?30° C., a tan delta, measured at 0.1 radians/s at 190° C., of less than 3, an HDT that is greater than, or equal to, the peak melting temperature of the ethylene/?-olefin interpolymer, measured by differential scanning calorimetry; and C) a fiber filler; and D) a nitrogen source and/or a phosphorus source, wherein at least one source is derived from at least one organic compound, or salt thereof; and wherein the weight ratio of the propylene-based polmer:ethylene/?-olefin interpolymer (A:B) is from 9:1 to 6:4.Type: GrantFiled: July 1, 2010Date of Patent: April 29, 2014Assignee: Dow Global Technologies LLCInventors: Anteneh Z. Worku, Kim L. Walton, Henry G. Heck
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Patent number: 8242183Abstract: Certain brominated polymers compounds are effective FR additives for combustible organic polymers. These FR additives include: i) a copolymer having styrene and 2,3-dibromopropylmaleimide repeating units; ii) a brominated polyester having aliphatically bound bromine; iii) an allyl ether of a ring-brominated novolac resin; iv) a 3-bromo-2-hydroxypropyl ether of a novolac resin; v) a 2,3-dibromopropyl ether of a cresol novolac resin; and vi) a brominated ROMP polymer or copolymer.Type: GrantFiled: January 30, 2009Date of Patent: August 14, 2012Assignee: Dow Global Technologies LLCInventors: Bruce A. King, Anteneh Z. Worku, William G. Stobby
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Publication number: 20120088868Abstract: The invention provides a polyolefin composition comprising: A) a propylene-based polymer having a flex modulus of greater than 1500 MPa and an HDT of greater than 100° C.; B) an ethylene/?-olefin interpolymer having Tg of less than ?30° C., a tan delta, measured at 0.1 radians/s at 190° C., of less than 3, an HDT that is greater than, or equal to, the peak melting temperature of the ethylene/?-olefin interpolymer, measured by differential scanning calorimetry; and C) a fiber filler; and D) a nitrogen source and/or a phosphorus source, wherein at least one source is derived from at least one organic compound, or salt thereof; and wherein the weight ratio of the propylene-based polmer:ethylene/?-olefin interpolymer (A:B) is from 9:1 to 6:4.Type: ApplicationFiled: July 1, 2010Publication date: April 12, 2012Applicant: Dow Global Technlogies LLCInventors: Anteneh Z. Worku, Kim L. Walton, Henry G. Heck
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Publication number: 20110257299Abstract: A composition comprising: a) an epoxy resin; b) a hardener; and c) a stabilizer comprising a metal-containing compound, the metal-containing compound comprising a metal selected from the group consisting of Group 11-13 metals and combinations thereof, wherein the composition is prepared from a halogen-containing compound is disclosed.Type: ApplicationFiled: January 6, 2009Publication date: October 20, 2011Applicant: Dow Global Technologies LLCInventors: Tomoyuki Aoyama, Frank Y. Gong, Bernd Hoevel, Michael J. Mullins, Perrin Shao Ping Ren, Joey W. Storer, Hung-Jue Sue, Ludovic Valette, Anteneh Z. Worku, Raymond J. Thibault
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Publication number: 20110152391Abstract: Expanded styrenic polymers contain 1 to 20% by weight of one or more aromatic polyphosphonate compounds corresponding to the following structure I: wherein a and b are each from 0 to 6, with a+b being from 2 to 6, each R is independently hydrogen, unsubstituted or inertly substituted alkyl having up to 6 carbon atoms, —NO2, —NR12, —C?N, —OR1, —C(O)OR1, or —C(O)NR12 (wherein R1 is hydrocarbyl or hydrogen), each R2 is independently hydrogen, alkyl or inertly substituted alkyl, each R3 is a covalent bond or a divalent linking group, and each R4 is independently an alkyl, aryl, inertly substituted alkyl or inertly substituted aryl group. The aromatic polyphosphonate compounds are effective FR additives for the expanded polymers.Type: ApplicationFiled: September 3, 2008Publication date: June 23, 2011Inventors: David R. Wilson, Duane R. Romer, William J. Kruper, JR., Ravi B. Shankar, William G. Stobby, Anteneh Z. Worku
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Publication number: 20110136993Abstract: Phosphorus-containing compounds of formula (I): (I) wherein m, n, R, R1 and R2 are as set forth in the claims. The compounds of formula (I) can be used to provide polymers with flame retardant properties.Type: ApplicationFiled: August 26, 2009Publication date: June 9, 2011Applicant: Dow Global Technologies LLCInventors: Anteneh Z Worku, Ashwin R. Bharadwaj, Raymond J. Thibault, Mark B. Wilson, Douglas L. Potts
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Publication number: 20110130490Abstract: The present invention is a flame-retardant polyurethane composition comprising (a) a thermoplastic polyurethane-based resin component, (b) a phosphorus flame retardant particulate filler, and (c) a low melting temperature phosphorus flame retardant agent.Type: ApplicationFiled: July 30, 2008Publication date: June 2, 2011Inventors: Geoffrey D. Brown, Given Jing Chen, Kawai Peter Pang, Robert F. Eaton, Manish Mundra, Anteneh Z. Worku
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Patent number: 7851558Abstract: A thermally stable brominated butadiene copolymer, such as brominated styrene/butadiene block copolymer, brominated random styrene/butadiene copolymer or brominated styrene/butadiene graft copolymer, preparation of the brominated butadiene copolymers, use of the brominated butadiene copolymers as a flame retardant additive and polymeric compositions, both foamed and non-foamed, that incorporate a flame-retarding amount of brominated butadiene copolymer.Type: GrantFiled: October 23, 2006Date of Patent: December 14, 2010Assignee: Dow Global Technologies Inc.Inventors: Bruce A. King, William G. Stobby, Daniel J. Murray, Anteneh Z. Worku, Inken Beulich, Sheila M. Tinetti, Stephen F. Hahn, Ray E. Drumright
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Publication number: 20100016482Abstract: Compositions comprising: A) a crystalline isotactic propylene homopolymer having a flex modulus of greater than 1930 MPa and an HDT of greater than 100° C.; B) an ethylene/?-olefin interpolymer having Tg of less than ?30° C., a tan delta measured at 0.1 radians/s at 190° C. of less than 2, an HDT that is greater than, or equal to, the peak melting temperature of the ethylene/?-olefin interpolymer, measured by differential scanning calorimetry, and C) a platy filler, and D) a nitrogen source and a phosphorus source, where at least one source is derived from at least one organic compound, or salt thereof, and wherein the weight ratio of homopolymer?interpolymer (A:B) is between 9:1 and 6:4. The invention provides other compositions, articles formed from compositions, and methods of making the same.Type: ApplicationFiled: December 20, 2007Publication date: January 21, 2010Applicant: Dow Global Technologies Inc.Inventors: Henry G. Heck, Anteneh Z. Worku
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Publication number: 20090149561Abstract: Extruded polymer foams are prepared using 5,5-bis(bromomethyl)-2-oxo-1,3,2-dioxaphosphorinane or brominated 2-oxo-1,3,2-dioxaphosphorinane compounds. The brominated FR additives unexpectedly are stable at the extrusion temperatures, and provide excellent flame retardancy to the foams.Type: ApplicationFiled: December 10, 2008Publication date: June 11, 2009Inventors: Anteneh Z. Worku, William G. Stobby, Sheila M. Tinetti, Inken Beulich, David R. Wilson, Duane R. Romer, James P. Godschalx, Nelson G. Rondan, William J. Kruper, JR., Ted A. Morgan
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Publication number: 20080287559Abstract: A thermally stable brominated butadiene copolymer, such as brominated styrene/butadiene block copolymer, brominated random styrene/butadiene copolymer or brominated styrene/butadiene graft copolymer, preparation of the brominated butadiene copolymers, use of the brominated butadiene copolymers as a flame retardant additive and polymeric compositions, both foamed and non-foamed, that incorporate a flame-retarding amount of brominated butadiene copolymer.Type: ApplicationFiled: October 23, 2006Publication date: November 20, 2008Inventors: Bruce A. King, William G. Stobby, Daniel J. Murray, Anteneh Z. Worku, Inken Beulich, Sheila M. Tinetti, Stephen F. Hahn, Ray E. Drumright
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Patent number: 6617379Abstract: N,N′-piperazinebis(neopentylglycol)phosphoramidate is used in combination with at least one co-additive which is (i) melamine, (ii) one or more melamine compounds or derivatives, or (iii) both of (i) and (ii) to provide effective flame retardancy in thermoplastic polymers. With polymers that tend to release trace amounts of acid under thermal processing conditions, a hydrotalcite is preferably included in the composition. In acid-sensitive polymers such as polyesters, the N,N′-piperazinebis(neopentylglycol)phosphoramidate should be free or essentially free of acid species as determinable by use of nmr, mass spec, and/or HPLC.Type: GrantFiled: December 4, 2001Date of Patent: September 9, 2003Assignee: Albemarle CorporationInventors: Anteneh Z. Worku, Daniel A. De Schryver, Susan D. Landry, Arthur G. Mack
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Publication number: 20030109608Abstract: N,N′-piperazinebis(neopentylglycol)phosphoramidate is used in combination with at least one co-additive which is (i) melamine, (ii) one or more melamine compounds or derivatives, or (iii) both of (i) and (ii) to provide effective flame retardancy in thermoplastic polymers. With polymers that tend to release trace amounts of acid under thermal processing conditions, a hydrotalcite is preferably included in the composition. In acid-sensitive polymers such as polyesters, the N,N′-piperazinebis(neopentylglycol)phosphoramidate should be free or essentially free of acid species as determinable by use of nmr, mass spec, and/or HPLC.Type: ApplicationFiled: December 4, 2001Publication date: June 12, 2003Inventors: Anteneh Z. Worku, Daniel A. De Schryver, Susan D. Landry, Arthur G. Mack