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).

  • Patent number: 9752010
    Abstract: 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: Grant
    Filed: July 11, 2016
    Date of Patent: September 5, 2017
    Assignee: BLUE CUBE IP LLC
    Inventors: Anteneh Z. Worku, Michael J. Mullins
  • Publication number: 20160319107
    Abstract: 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: Application
    Filed: July 11, 2016
    Publication date: November 3, 2016
    Inventors: Anteneh Z. Worku, Michael J. Mullins
  • Patent number: 9388297
    Abstract: 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: Grant
    Filed: May 1, 2012
    Date of Patent: July 12, 2016
    Assignee: BLUE CUBE IP LLC
    Inventors: Anteneh Z. Worku, Michael J. Mullins
  • Publication number: 20150319858
    Abstract: 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: Application
    Filed: July 15, 2015
    Publication date: November 5, 2015
    Inventors: 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
  • Patent number: 8969446
    Abstract: 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: Grant
    Filed: July 30, 2008
    Date of Patent: March 3, 2015
    Assignee: Dow Global Technologies LLC
    Inventors: Geoffrey D. Brown, Given Jing Chen, Kawai Peter Pang, Robert F. Eaton, Manish Mundra, Anteneh Z. Worku
  • Publication number: 20140249253
    Abstract: 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: Application
    Filed: May 1, 2012
    Publication date: September 4, 2014
    Applicant: Dow Global Technologies LLC
    Inventors: Anteneh Z. Worku, Michael J. Mullins
  • Patent number: 8710125
    Abstract: 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: Grant
    Filed: July 1, 2010
    Date of Patent: April 29, 2014
    Assignee: Dow Global Technologies LLC
    Inventors: Anteneh Z. Worku, Kim L. Walton, Henry G. Heck
  • Patent number: 8242183
    Abstract: 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: Grant
    Filed: January 30, 2009
    Date of Patent: August 14, 2012
    Assignee: Dow Global Technologies LLC
    Inventors: Bruce A. King, Anteneh Z. Worku, William G. Stobby
  • Publication number: 20120088868
    Abstract: 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: Application
    Filed: July 1, 2010
    Publication date: April 12, 2012
    Applicant: Dow Global Technlogies LLC
    Inventors: Anteneh Z. Worku, Kim L. Walton, Henry G. Heck
  • Publication number: 20110257299
    Abstract: 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: Application
    Filed: January 6, 2009
    Publication date: October 20, 2011
    Applicant: Dow Global Technologies LLC
    Inventors: 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
  • Publication number: 20110152391
    Abstract: 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: Application
    Filed: September 3, 2008
    Publication date: June 23, 2011
    Inventors: David R. Wilson, Duane R. Romer, William J. Kruper, JR., Ravi B. Shankar, William G. Stobby, Anteneh Z. Worku
  • Publication number: 20110136993
    Abstract: 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: Application
    Filed: August 26, 2009
    Publication date: June 9, 2011
    Applicant: Dow Global Technologies LLC
    Inventors: Anteneh Z Worku, Ashwin R. Bharadwaj, Raymond J. Thibault, Mark B. Wilson, Douglas L. Potts
  • Publication number: 20110130490
    Abstract: 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: Application
    Filed: July 30, 2008
    Publication date: June 2, 2011
    Inventors: Geoffrey D. Brown, Given Jing Chen, Kawai Peter Pang, Robert F. Eaton, Manish Mundra, Anteneh Z. Worku
  • Patent number: 7851558
    Abstract: 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: Grant
    Filed: October 23, 2006
    Date of Patent: December 14, 2010
    Assignee: 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
  • Publication number: 20100016482
    Abstract: 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: Application
    Filed: December 20, 2007
    Publication date: January 21, 2010
    Applicant: Dow Global Technologies Inc.
    Inventors: Henry G. Heck, Anteneh Z. Worku
  • Publication number: 20090149561
    Abstract: 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: Application
    Filed: December 10, 2008
    Publication date: June 11, 2009
    Inventors: 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
  • Publication number: 20080287559
    Abstract: 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: Application
    Filed: October 23, 2006
    Publication date: November 20, 2008
    Inventors: Bruce A. King, William G. Stobby, Daniel J. Murray, Anteneh Z. Worku, Inken Beulich, Sheila M. Tinetti, Stephen F. Hahn, Ray E. Drumright
  • Patent number: 6617379
    Abstract: 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: Grant
    Filed: December 4, 2001
    Date of Patent: September 9, 2003
    Assignee: Albemarle Corporation
    Inventors: Anteneh Z. Worku, Daniel A. De Schryver, Susan D. Landry, Arthur G. Mack
  • Publication number: 20030109608
    Abstract: 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: Application
    Filed: December 4, 2001
    Publication date: June 12, 2003
    Inventors: Anteneh Z. Worku, Daniel A. De Schryver, Susan D. Landry, Arthur G. Mack