Patents by Inventor Sergei V. Levchik

Sergei V. Levchik 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: 10500823
    Abstract: There is provided herein a flame retardant and curing agent compound for curing thermosetting resins, e.g., epoxy resins, a composition comprising a thermosetting resin, e.g., an epoxy resin and the curing agent, an article comprising the curing agent, and a method of making the curing agent.
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: December 10, 2019
    Assignee: ICL-IP America Inc.
    Inventors: Andrew Piotrowski, Joseph Zilberman, Sergei V. Levchik, Meng Zhang, Eran Gluz, Kali Ananth Suryadevara
  • Publication number: 20180326708
    Abstract: There is provided herein a flame retardant and curing agent compound for curing thermosetting resins, e.g., epoxy resins, a composition comprising a thermosetting resin, e.g., an epoxy resin and the curing agent, an article comprising the curing agent, and a method of making the curing agent.
    Type: Application
    Filed: November 1, 2016
    Publication date: November 15, 2018
    Inventors: Andrew Piotrowski, Joseph Zilberman, Sergei V Levchik, Meng Zhang, Eran Gluz, Kali Ananth Suryadevara
  • Patent number: 10119012
    Abstract: There is provided herein a flame-retarded polyolefin polymer composition with reduced antimony trioxide content comprising: (a) at least one polyolefin polymer; (b) at least one brominated flame retardant (c) at least one antimony trioxide synergist and, (d) at least one calcium borate on an inorganic carrier. There is also provided a method of making said flame retarded polyolefin polymer composition and article thereof.
    Type: Grant
    Filed: February 2, 2015
    Date of Patent: November 6, 2018
    Assignee: ICL-IP America Inc.
    Inventors: Yelena Assor, Loir Melamed, Marc Leifer, Sergei V. Levchik, Eyal Eden
  • Publication number: 20160340498
    Abstract: There is provided herein a flame-retarded polyolefin polymer composition with reduced antimony trioxide content comprising: (a) at least one polyolefin polymer; (b) at least one brominated flame retardant; (c) at least one antimony trioxide synergist and, (d) at least one calcium borate on an inorganic carrier. There is also provided a method of making said flame retarded polyolefin polymer composition and article thereof.
    Type: Application
    Filed: February 2, 2015
    Publication date: November 24, 2016
    Applicant: ICL-IP AMERICA INC.
    Inventors: Yelena ASSOR, Lior MELAMED, Marc LEIFER, Sergei V. LEVCHIK, Eyal V. EDEN
  • Patent number: 9475933
    Abstract: There is provided herein a flame retardant thermoplastic composition comprising: a. at least one thermoplastic polyester or polyamide; b. at least one brominated flame retardant; c. at least one metal phosphonate or phosphinate. There is also provided a method of making said flame retardant thermoplastic composition; and an article containing the thermoplastic polymer composition.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: October 25, 2016
    Assignee: ICL-IP America Inc.
    Inventors: Rachel Shtekler, Yoav Bar Yaakov, Pierre Georlette, Sergei V. Levchik
  • Publication number: 20160017117
    Abstract: There is provided herein a stable suspension of at least one of an inorganic oxide, an inorganic hydroxide, an inorganic carbonate and mixed salts thereof of the metals of groups II and III of the Periodic Table of Elements in a liquid phosphate ester. There is also provided a flame retarded thermoplastic resin composition containing a hydrolysis-susceptible thermoplastic resin and the stable suspension. There is also provided an electronic component comprising the flame retarded thermoplastic resin composition.
    Type: Application
    Filed: February 21, 2014
    Publication date: January 21, 2016
    Inventors: Meyrav Abecassis WOLFOVICH, Smadar HINI, Sergei V. LEVCHIK, Paul MOY
  • Publication number: 20150126650
    Abstract: There is provided herein an antimony trioxide-free flame-retarded styrenic thermoplastic polymer composition comprising: (a) at least one styrenic thermoplastic polymer; (b) at least one brominated flame retardant, (c) at least one metal phosphonate; and, (d) at least one antidripping agent. There is also provided a method of making said flame retarded styrenic thermoplastic polymer composition; and, an article comprising the styrenic thermoplastic polymer composition.
    Type: Application
    Filed: May 3, 2013
    Publication date: May 7, 2015
    Inventors: Pierre Georlette, Eyal Eden, Rachel Shtekler, Marc Leifer, Sergei V. Levchik
  • Patent number: 8889773
    Abstract: There is provided herein an aluminum methyl methylphosphonate in crystalline form wherein 90% of the aluminum methyl methylphoshponate has a particle size of less than 10 microns, and wherein the aluminum methyl methylphosphonate is obtained by the process of reacting aluminum hydroxide with dimethyl methylphosphonate in the presence of a catalyst.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: November 18, 2014
    Assignee: ICL-IP America Inc.
    Inventors: Joseph Zilberman, Sergei V. Levchik, Andrew Gregor, Pierre Georlette, Yoav Bar Yaakov, Gideon Shikolski
  • Patent number: 8772424
    Abstract: This invention relates to an epoxy resin composition, in particular a curable phosphorus containing flame retardant epoxy resin composition comprising epoxy resin and an epoxy resin chain-extending amount of a diaryl alkylphosphonate and/or diaryl arylphosphonate and a cross-linking agent. The curable flame retardant compositions are useful in e.g., printed wiring boards or molding compounds for electronic applications, protective coatings, adhesives, as well as structural and decorative composite materials.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: July 8, 2014
    Assignee: ICL-IP America Inc.
    Inventors: Sergei V. Levchik, Andrew Mieczyslaw Piotrowski, Joseph Zilberman, Stephen J. Chaterpaul
  • Publication number: 20140155527
    Abstract: There is provided herein a flame retarded polyolefin composition comprising a thermoplastic polyolefin polymer, an inorganic flame retardant and a synergist comprising a metal phosphonate represented by the formula: There is also provided a method for making a flame retarded polyolefin composition comprising contacting at least one thermoplastic polyolefin polymer with at least one inorganic flame retardant and at least one metal phosphonate and heating the mixture of thermoplastic polyolefin polymer, at least one inorganic flame retardant and at least one metal phosphonate above the melting temperature of the thermoplastic polyolefin polymer.
    Type: Application
    Filed: June 12, 2013
    Publication date: June 5, 2014
    Applicant: ICL-IP America Inc.
    Inventors: Sergei V. Levchik, Gerald R. Alessio, Yankai Yang
  • Publication number: 20140005303
    Abstract: There is provided herein a flame retardant thermoplastic composition comprising: a. at least one thermoplastic polyester or polyamide; b. at least one brominated flame retardant; c. at least one metal phosphonate or phosphinate. There is also provided a method of making said flame retardant thermoplastic composition; and an article containing the thermoplastic polymer composition.
    Type: Application
    Filed: December 20, 2011
    Publication date: January 2, 2014
    Applicant: ICL-IP America Inc.
    Inventors: Rachel Shtekler, Yoav Bar Yaakov, Pierre Georlette, Sergei V. Levchik
  • Publication number: 20130260626
    Abstract: The present invention relates to solid phosphate ester, which can be used as a flame retardant in treatments for textile substrates. More specifically, the treatments for textiles substrates can be used as flame retardant formulations for application on textile fabrics while substantially maintaining the desired characteristics (aesthetic or textural properties) of the textile. The present invention thus further provides for articles having these phosphate ester formulations applied thereon, and of processes of applying them onto various textile substrates.
    Type: Application
    Filed: November 1, 2011
    Publication date: October 3, 2013
    Inventors: Jeffrey Stowell, Sergei V. Levchik
  • Publication number: 20130165564
    Abstract: There is provided herein an aluminum methyl methylphosphonate in crystalline form wherein 90% of the aluminum methyl methylphoshponate has a particle size of less than 10 microns, and wherein the aluminum methyl methylphosphonate is obtained by the process of reacting aluminum hydroxide with dimethyl methylphosphonate in the presence of a catalyst.
    Type: Application
    Filed: June 21, 2011
    Publication date: June 27, 2013
    Applicant: ICL-IP America Inc.
    Inventors: Joseph Zilberman, Sergei V. Levchik, Andrew Gregor, Pierre Georiette, Yoav Bar Yaakov, Gideon Shikolski
  • Publication number: 20130059956
    Abstract: There is provided herein a polyolefin polymer composition comprising a polyolefin polymer and a metal salt of alkyl alkylphosphonic acid of general formula (I) where X is a metal and R1 and R2 are the same or different linear or branched alkyls containing from one to about twelve carbon atoms, n is equal to the valency of the metal X which is in the range of from 1 to 4. There is also provided a method for making a polyolefin polymer composition comprising contacting at least one polyolefin polymer with at least one metal salt of alkyl alkylphosphonic acid and heating the mixture of polyolefin polymer and at least one metal salt of alkyl alkylphosphonic acid to above the melting temperature of the polyolefin polymer.
    Type: Application
    Filed: February 11, 2011
    Publication date: March 7, 2013
    Inventors: Sergei V. Levchik, Gerald R. Alessio, Yoav Bar Yaakov, Ita Finberg, Pierre Georlette
  • Publication number: 20130025916
    Abstract: There is provided herein an epoxy laminate comprising (a) an epoxy resin composition further comprising (i) at least one curable epoxy resin, (ii) at least one curing agent, (iii) at least one curing catalyst; and, (iv) a flame retardant effective amount of at least one metal phosphonate represented by the general formula: where Me is a metal, n is equal to the valency of the metal which is in the range of from 1 to 4, R1 is a linear or branched alkyl of up to about 12 carbon atoms, R2 is a linear or branched alkyl of up to about 12 carbon atoms or a substituted aryl or unsubstituted aryl of general formula: where R3 hydrogen, or a branched or linear alkyl of up to about 4 carbon atoms, or NH2 or CN or NO2, (b) a reinforcing material; and, (c) a copper foil.
    Type: Application
    Filed: January 27, 2012
    Publication date: January 31, 2013
    Applicant: ICL-IP America Inc.
    Inventors: Sergei V. Levchik, Anantha Desikan
  • Publication number: 20120301658
    Abstract: The present invention relates to metal phosphonates, e.g., aluminum methyl methylphosphonate (AMMP), which can be used as a flame retardant in the formulations for application on a textile substrate. More specifically, the metal phosphonate-containing formulations can be used as flame retardant formulations for application on textile fabrics while substantially maintaining the desired characteristics (aesthetic or textural properties) of the textile. The present invention thus further provides for articles having these metal phosphonate formulations applied thereon, and of processes of applying them onto various textile substrates.
    Type: Application
    Filed: August 3, 2010
    Publication date: November 29, 2012
    Inventors: Sergei V. Levchik, Royi Mazor, Avi Ben-Zvi
  • Publication number: 20120283357
    Abstract: This invention relates to an epoxy resin composition, in particular a curable phosphorus containing flame retardant epoxy resin composition comprising epoxy resin and an epoxy resin chain-extending amount of a diaryl alkylphosphonate and/or diaryl arylphosphonate and a cross-linking agent. The curable flame retardant compositions are useful in e.g., printed wiring boards or molding compounds for electronic applications, protective coatings, adhesives, as well as structural and decorative composite materials.
    Type: Application
    Filed: November 1, 2011
    Publication date: November 8, 2012
    Applicant: ICL-IP America Inc.
    Inventors: Sergei V. Levchik, Andrew Mieczyslaw Piotrowski, Joseph Zilberman, Stephen J. Chaterpaul
  • Publication number: 20120121877
    Abstract: There is provided herein a polyolefin composition comprising a polyolefin and a flame retardant effective amount of a solid phosphate ester of the general formula (1): wherein n has an average value of from about 1.0 to about 2.0 and X is a divalent arylene moiety bonded to both of the oxygen atoms of any one of hydroquinone, resorcinol, 4,4?-biphenol, bisphenol S, or bisphenol F, and wherein the phosphate ester is in the absence of halogen. There is also provided a method of making the polyolefin composition. This fire retardant polyolefin composition is particularly useful in polypropylene fiber and films and foams.
    Type: Application
    Filed: March 1, 2010
    Publication date: May 17, 2012
    Inventors: Sergei V. Levchik, Gerald R. Alessio, Pierre Georlette
  • Publication number: 20120010336
    Abstract: There is provided herein a flame retardant additive composition comprising: a. at least one aromatic bisphosphate b. at least one metal phosphonate; and, c. at least one nitrogen-rich compound. There is also provided a thermoplastic polymer composition, containing thermoplastic polymer, e.g., thermoplastic polyester and the flame retardant additive composition; a method of making said flame retardant additive composition; and an article, e.g., an electronic component, containing the thermoplastic polymer composition.
    Type: Application
    Filed: January 13, 2010
    Publication date: January 12, 2012
    Inventors: Sergei V. Levchik, Ita Finberg, Yaov Bar-Yaakov
  • Patent number: 8026303
    Abstract: The present invention relates to a halogen-free or substantially halogen-free flame-retardant composition comprising a blend of (i) at least one of each highly charring polymer (ii) at least one low volatility phosphate ester, and (iii) at least one compound which splits off a high volatility phosphorus-containing fragment. The invention also relates to a flame retarded thermoplastic composition wherein the flame retardant composition is blended with at least one thermoplastic resin (iv), preferable a polystyrene resin. The invention also relates to a process for manufacturing a flame retardant composition and a thermoplastic composition containing the same.
    Type: Grant
    Filed: January 5, 2007
    Date of Patent: September 27, 2011
    Assignee: ICL-IP America Inc.
    Inventors: Sergei V. Levchik, Gerald R. Alessio, Oiang Yao