Patents by Inventor Maher Y. Elsheikh

Maher Y. Elsheikh 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).

  • Publication number: 20160023034
    Abstract: Hydrofluoroolefins and hydrochlorofluoroolefins contaminated with acid and/or iron compounds are purified and stabilized by contacting the haloolefin with a solid adsorbent such as alumina and then combining the purified haloolefin with one or more stabilizers such as an epoxide. The purified, stabilized haloolefins thus obtained are useful in a wide variety of end-use applications, including, for example, as refrigerants, propellants, foaming agents, fire suppression or extinguishing agents, and solvents.
    Type: Application
    Filed: February 28, 2014
    Publication date: January 28, 2016
    Applicant: Arkema Inc.
    Inventors: Maher Y. ELSHEIKH, Philippe BONNET
  • Publication number: 20160016868
    Abstract: Disclosed are the combinations containing Z and E stereoisomers of hydrofluoroolefins where the more toxic isomer is less than about 30 % weight of the combination (vs the sum of Z+E), to minimize the toxicity impact in the applications they will be used for such as cooling and heat fluids, foams blowing agents or solvents. Also disclosed are means to obtain combinations containing Z and E stereoisomers of hydrofluoroolefins.
    Type: Application
    Filed: September 30, 2015
    Publication date: January 21, 2016
    Applicant: Arkema Inc.
    Inventors: Philippe Bonnet, Maher Y. Elsheikh
  • Patent number: 9234070
    Abstract: A blowing agent for thermosetting foams is disclosed. The blowing agent is predominately the trans isomer of the hydrochlorofluoroolefin (HCFO) HFCO-1233zd alone or in combination with a hydrofluoroolefin (HFO), hydrofluorocarbon (HFC), hydrochlorofluoroolefin (HCFO), a hydrocarbon. The blowing agent is effective as a blowing agent in the manufacture of thermosetting foams.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: January 12, 2016
    Assignee: Arkema Inc.
    Inventors: Benjamin Bin Chen, Maher Y. Elsheikh, Philippe Bonnet, Brett L. Van Horn, Joseph S. Costa
  • Patent number: 9228071
    Abstract: A blowing agent for thermosetting foams is disclosed. The blowing agent is a hydrofluoroolefin (HCFO), preferably HFCO-1234ze in combination with a hydrochlorofluoroolefin (HCFO) preferably one selected from HCFO-1233zd, HCFO-1223, HCFO-1233xf and mixtures thereof. The blowing agent is effective as a blowing agent in the manufacture of thermosetting foams.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: January 5, 2016
    Assignee: Arkema Inc.
    Inventors: Benjamin Bin Chen, Joseph S. Costa, Philippe Bonnet, Maher Y. Elsheikh, Brett L. Van Horn
  • Patent number: 9206297
    Abstract: The present invention relates to foam products made with blowing agent compositions comprising at least one hydrochlorofluoroolefin (HCFO) used in the preparation of foamable thermoplastic compositions. The HCFOs of the present invention include, but are not limited to, 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd), particularly the trans-isomer, 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf), dichloro-fluorinated propenes, and mixtures thereof. The blowing agent compositions of the present invention are used with coblowing agents including carbon dioxide, atmospheric gases, hydrofluorocarbons (HFC), hydrofluoroolefins (HFO), alkanes, hydrofluoroethers (HFE), and mixtures thereof. Preferred HFCs used as coblowing agents in the present invention include, but are not limited too, 1,1,1,2-tetrafluoroethane (HFC-134a), 1,1-difluoroethane (HFC-152a), 1,1,1-trifluoroethane (HFC-143a), pentafluorethane (HFC-125), difluoromethane (HFC-32).
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: December 8, 2015
    Assignee: Arkema Inc.
    Inventors: Brett L. Van Horn, Maher Y. Elsheikh, Benjamin Bin Chen, Philippe Bonnet
  • Patent number: 9206097
    Abstract: The present invention is directed towards a method of purification of chloroolefins having 3 carbons and to a method to provide stable compositions of chloroolefins having 3 carbons. The chloroolefins are purified via the use of a solid absorbents for the removal of decomposition product such as phosgene and/or phosgene precursory from the reaction of the chloroolefins with oxygen. The chloroolefins stabilized against an increase of the phosgene level via the addition of inhibitors to the chloroolefins.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: December 8, 2015
    Assignee: Arkema Inc.
    Inventors: Maher Y. Elsheikh, Philippe Bonnet
  • Patent number: 9181154
    Abstract: Disclosed are the combinations containing Z and E stereoisomers of hydrofluoroolefins where the more toxic isomer is less than about 30% weight of the combination (vs the sum of Z+E), to minimize the toxicity impact in the applications they will be used for such as cooling and heat fluids, foams blowing agents or solvents. Also disclosed are means to obtain combinations containing Z and E stereoisomers of hydrofluoroolefins.
    Type: Grant
    Filed: July 11, 2013
    Date of Patent: November 10, 2015
    Assignee: Arkema Inc.
    Inventors: Philippe Bonnet, Maher Y. Elsheikh
  • Publication number: 20150299414
    Abstract: The present invention relates to blowing agent compositions comprising (1) at least one hydrofluoroolefin (HFO) and (2) at least one hydrochlorofluoroolefin (HCFO) used in the preparation of foamable thermoplastic compositions. The HFOs of component (1) include, but are not limited too, 3,3,3-trifluoropropene (HFO-1243zf), 1,2,3,3,3-pentafluoropropene (HFO-1225ye), cis- and/or trans-1,3,3,3-tetrafluoropropene (HFO-1234ze), and 2,3,3,3-tetrafluoropropene (HFO 1234yf), and mixtures thereof. The HCFOs of component (2) include, but are not limited to, 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd), 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf) and mixtures thereof. The blowing agent compositions are useful in the production of low density insulating foams with improved k-factor.
    Type: Application
    Filed: July 1, 2015
    Publication date: October 22, 2015
    Inventors: Brett L. Van Horn, Maher Y. Elsheikh, Benjamin Bin Chen, Philippe Bonnet
  • Publication number: 20150197614
    Abstract: A polyol pre-mix composition includes a blowing agent having a halogenated hydroolefin, a polyol, a catalyst composition, and an antioxidant. The antioxidant may be, for example, a benzene diol or a benzene triol or other polyhydroxy-substituted aromatic compound, which is optionally substituted with one or more substituents such as alkyl groups. A two-part system for producing a thermosetting foam blend includes (a) a polyisocyanate and, optionally, one or more isocyanate compatible raw materials; and (b) the polyol pre-mix composition. A method for producing a thermosetting foam blend includes combining: (a) a polyisocyanate; and (b) the polyol pre-mix composition.
    Type: Application
    Filed: September 19, 2013
    Publication date: July 16, 2015
    Inventors: Benjamin Bin Chen, Joseph S. Costa, Laurent Abbas, Maher Y. Elsheikh, Sri R. Seshadri, Gary S. Smith
  • Patent number: 8987534
    Abstract: The invention also relates a process for the manufacture of trans 1-chloro3,3,3-trifluoropropene. The process comprises an isomerization step from cis 1233zd to trans 1233zd.
    Type: Grant
    Filed: January 29, 2014
    Date of Patent: March 24, 2015
    Assignee: Arkema Inc.
    Inventors: Maher Y. Elsheikh, Philippe Bonnet, John A. Wismer, Sri R. Seshadri
  • Patent number: 8987535
    Abstract: The invention also relates a process for the manufacture of trans 1-chloro3,3,3-trifluoropropene. The process comprises an isomerization step from cis 1233zd to trans 1233zd.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: March 24, 2015
    Assignee: Arkema Inc.
    Inventors: Maher Y. Elsheikh, Anne Pigamo, Sri R. Seshadri
  • Publication number: 20150038603
    Abstract: The present invention relates to foam products made with blowing agent compositions comprising at least one hydrochlorofluoroolefin (HCFO) used in the preparation of foamable thermoplastic compositions. The HCFOs of the present invention include, but are not limited to, 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd), particularly the trans-isomer, 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf), dichloro-fluorinated propenes, and mixtures thereof. The blowing agent compositions of the present invention are used with coblowing agents including carbon dioxide, atmospheric gases, hydrofluorocarbons (HFC), hydrofluoroolefins (HFO), alkanes, hydrofluoroethers (HFE), and mixtures thereof. Preferred HFCs used as coblowing agents in the present invention include, but are not limited too, 1,1,1,2-tetrafluoroethane (HFC-134a), 1,1-difluoroethane (HFC-152a), 1,1,1-trifluoroethane (HFC-143a), pentafluorethane (HFC-125), difluoromethane (HFC-32).
    Type: Application
    Filed: October 21, 2014
    Publication date: February 5, 2015
    Applicant: Arkema Inc.
    Inventors: Brett L. VAN HORN, Maher Y. ELSHEIKH, Benjamin Bin CHEN, Philippe BONNET
  • Patent number: 8895635
    Abstract: The present invention relates to foam products made with blowing agent compositions comprising at least one hydrochlorofluoroolefin (HCFO) used in the preparation of Namable thermoplastic compositions. The HCFOs of the present invention include, but are not limited to, 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd), particularly the trans-isomer, 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf), dichloro-fluorinated propenes, and mixtures thereof. The blowing agent compositions of the present invention are used with coblowing agents including carbon dioxide, atmospheric gases, hydrofluorocarbons (HFC), hydrofluoroolefins (HFO), alkanes, hydrofluoroethers (HFE), and mixtures thereof. Preferred HFCs used as coblowing agents in the present invention include, but are not limited too, 1,1,1,2-tetrafluoroethane (HFC-134a), 1,1-difluoroethane (HFC-152a), 1,1,1-trifluoroethane (HFC-143a), pentafluorethane (HFC-125), difluoromethane (HFC-32).
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: November 25, 2014
    Assignee: Arkema Inc.
    Inventors: Brett L. Van Horn, Maher Y. Elsheikh, Benjamin Bin Chen, Philippe Bonnet
  • Patent number: 8895788
    Abstract: The invention relates to a process for manufacturing 1,1,1,2-tetrafluoropropene (1234yf, CF3—CF?CH2) from 1,1,3,3-tetrachlororopropene (1230za, CCl2?CH—CHCl2) and/or 1,1,1,3,3-pentachloropropane (240fa, CCl3CH2CHCl2). The process comprises a step of isomerization of 1,1,3,3-tetrafluoropropene (1230za) to 1,1,2,3-tetrachloropropene (1230xa) followed by conversion of the 1,1,2,3-tetrachloropropene (1230xa) to 1,1,1,2-tetrafluoropropene (1234yf) via a hydrofluorination process.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: November 25, 2014
    Assignee: Arkema Inc.
    Inventors: Maher Y. Elsheikh, Philippe Bonnet, John A. Wismer
  • Publication number: 20140336293
    Abstract: A blowing agent for thermosetting foams is disclosed. The blowing agent is the hydrofluoropropene HFO-1243zf in combination with a hydrochlorofluoroolefin (HCFO) selected from HCFO-1233zd, HCFO-1233xf and HCFO-1223. The blowing agent is effective as a blowing agent in the manufacture of thermosetting foams.
    Type: Application
    Filed: July 24, 2014
    Publication date: November 13, 2014
    Applicant: Arkema Inc.
    Inventors: Benjamin Bin Chen, Joseph S. Costa, Brett L. Van Horn, Maher Y. Elsheikh, Philippe Bonnet
  • Publication number: 20140316171
    Abstract: The invention relates to a process for manufacturing 1,1,1,2-tetrafluoropropene (1234yf, CF3-CF?CH2) from 1,1,3,3-tetrachlororopropene (1230za, CCl2CH—CHCl2) and/or 1,1,1,3,3-pentachloropropane (240fa, CCl3CH2CHCl2). The process comprises a step of isomerization of 1,1,3,3-tetrafluoropropene (1230za) to 1,1,2,3-tetrachloropropene (1230xa) followed by conversion of the 1,1,2,3-tetrachloropropene (1230xa) to 1,1,1,2-tetrafluoropropene (1234yf) via a hydrofluorination process.
    Type: Application
    Filed: January 21, 2014
    Publication date: October 23, 2014
    Applicant: Arkema Inc.
    Inventors: Maher Y. ELSHEIKH, Philippe Bonnet, John A. Wismer
  • Publication number: 20140296360
    Abstract: A blowing agent for thermosetting foams is disclosed. The blowing agent is a hydrofluoroolefin (HCFO), preferably HFCO-1234ze in combination with a hydrochlorofluoroolefin (HCFO) preferably one selected from HCFO-1233zd, HCFO-1223, HCFO-1233xf and mixtures thereof. The blowing agent is effective as a blowing agent in the manufacture of thermosetting foams.
    Type: Application
    Filed: June 16, 2014
    Publication date: October 2, 2014
    Applicant: Arkema Inc.
    Inventors: Benjamin B. CHEN, Joseph S. COSTA, Philippe BONNET, Maher Y. ELSHEIKH, Brett L. VAN HORN
  • Publication number: 20140228600
    Abstract: The invention also relates a process for the manufacture of trans 1-chloro3,3,3-trifluoropropene. The process comprises an isomerization step from cis 1233zd to trans 1233zd.
    Type: Application
    Filed: January 29, 2014
    Publication date: August 14, 2014
    Applicant: Arkema Inc.
    Inventors: Maher Y. Elsheikh, Philippe Bonnet, John A. Wismer, Sri R. Seshadri
  • Publication number: 20140213678
    Abstract: The present invention relates to blowing agent compositions comprising (1) at least one hydrofluoroolefin (HFO) and (2) at least one hydrochlorofluoroolefin (HCFO) used in the preparation of foamable thermoplastic compositions. The HFOs of component (1) include, but are not limited too, 3,3,3-trifluoropropene (HFO-1243zf), 1,2,3,3,3 -pentafluoropropene (HFO-1225ye), cis- and/or trans-1,3,33-tetrafluoropropene (HFO-1234ze), and 2,3,3,3-tetrafluoropropene (HFO 1234yf), and mixtures thereof. The HCFOs of component (2) include, but are not limited to, 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd), 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf) and mixtures thereof. The blowing agent compositions are useful in the production of low density insulating foams with improved k-factor.
    Type: Application
    Filed: April 2, 2014
    Publication date: July 31, 2014
    Applicant: Arkema Inc.
    Inventors: Brett L. Van Horn, Maher Y. Elsheikh, Benjamin Bin Chen, Philippe Bonnet
  • Patent number: 8772364
    Abstract: The present invention relates to blowing agent compositions comprising (1) at least one hydrofluoroolefin (HFO) and (2) at least one hydrochlorofluoroolefin (HCFO) used in the preparation of foamable thermoplastic compositions. The HFOs of component (1) include, but are not limited too, 3,3,3-trifluoropropene (HFO-1243zf), 1,2,3,3,3-pentafluoropropene (HFO-1225ye), cis- and/or trans-1,3,3,3-tetrafluoropropene (HFO-1234ze), and 2,3,3,3-tetrafluoropropene (HFO 1234yf), and mixtures thereof. The HCFOs of component (2) include, but are not limited to, 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd), 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf) and mixtures thereof. The blowing agent compositions are useful in the production of low density insulating foams with improved k-factor.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: July 8, 2014
    Assignee: Arkema Inc.
    Inventors: Brett L. Van Horn, Maher Y. Elsheikh, Benjamin Bin Chen, Philippe Bonnet