Patents by Inventor Joseph Zilberman

Joseph Zilberman 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: 20210079301
    Abstract: The present invention provides fire-retarded rigid polyurethane foam comprising the reaction product of polyol and isocyanate foam forming components and a dialkyl phosphorus-containing compound, namely a reactive mono-hydroxyl-functional dialkyl phosphinates, as flame retardant, serving as highly efficient reactive flame retardant in said rigid polyurethane foam.
    Type: Application
    Filed: July 23, 2018
    Publication date: March 18, 2021
    Inventors: Andrew PIOTROWSKI, Joseph ZILBERMAN, Jeffrey STOWELL, Mark GELMONT, Mayank SINGH, Zhihao CHEN, Eran GLUZ
  • Patent number: 10899911
    Abstract: The present invention provides dialkyl phosphorus-containing compounds, namely reactive mono-hydroxyl-functional dialkyl phosphinates, serving as highly efficient reactive flame retardants in flexible polyurethane foams. The invention further provides fire-retarded polyurethane compositions comprising said the reaction product of the mono-hydroxyl-functional dialkyl phosphinates with polyol and isocyanate foam forming components.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: January 26, 2021
    Assignee: ICL-IP America Inc.
    Inventors: Andrew Piotrowski, Joseph Zilberman, Jeffrey Stowell, Mark Gelmont, Mayank Singh, Zhihao Chen, Eran Gluz
  • Patent number: 10730995
    Abstract: The present invention provides novel cyclic phosphorus-containing compounds, namely hydroxyl-functional phospholene-1-oxides, serving as highly efficient reactive flame retardants in urethane systems, particularly in flexible polyurethane foams, semi-rigid and rigid polyurethane and polyisocyanurate foams. The invention further provides fire-retarded polyurethane compositions comprising said hydroxyl-functional phospholene-1-oxides.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: August 4, 2020
    Assignee: ICL-IP America Inc.
    Inventors: Joseph Zilberman, Andrew Piotrowski, Eran Gluz, Jeffrey Stowell, Mark Gelmont, Zhihao Chen, Mayank Singh
  • Patent number: 10723833
    Abstract: The present invention provides novel cyclic phosphorus-containing compounds, namely hydroxyl-functional phospholene-1-oxides, serving as highly efficient reactive flame retardants in urethane systems, particularly in flexible polyurethane foams, rigid polyurethane foams and rigid polyisocyanurate foams. The invention further provides fire-retarded polyurethane compositions comprising said hydroxyl-functional phospholene-1-oxides.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: July 28, 2020
    Assignee: ICL-IP America Inc.
    Inventors: Joseph Zilberman, Andrew Piotrowski, Eran Gluz, Jeffrey Stowell, Mark Gelmont, Zhihao Chen, Mayank Singh
  • 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: 20190284402
    Abstract: There is provided herein a composition containing (A) a phosphorus-containing aromatic polyester of the general formula (I) described herein which has a weight average molecular weight of from 1,000 to 20,000 and which is concurrently a flame retardant O and an active ester curing agent, and, (B) a solvent, such as a solvent commonly used in thermosetting resin formulations and copper-cias laminate preparation.
    Type: Application
    Filed: November 20, 2017
    Publication date: September 19, 2019
    Inventors: Andrew PIOTROWSKI, Joseph ZILBERMAN, Meng ZHANG, Eran GLUZ, Sergei LEVCHIK
  • Publication number: 20190119468
    Abstract: The present invention provides dialkyl phosphorus-containing compounds, namely reactive mono-hydroxyl-functional dialkyl phosphinates, serving as highly efficient reactive flame retardants in flexible polyurethane foams. The invention further provides fire-retarded polyurethane compositions comprising said the reaction product of the mono-hydroxyl-functional dialkyl phosphinates with polyol and isocyanate foam forming components.
    Type: Application
    Filed: December 20, 2018
    Publication date: April 25, 2019
    Inventors: Andrew PIOTROWSKI, Joseph ZILBERMAN, Jeffrey STOWELL, Mark GELMONT, Mayank SINGH, Zhihao CHEN, Eran GLUZ
  • Patent number: 10208187
    Abstract: The present invention provides dialkyl phosphorus-containing compounds, namely reactive mono-hydroxyl-functional dialkyl phosphinates, serving as highly efficient reactive flame retardants in flexible polyurethane foams. The invention further provides fire-retarded polyurethane compositions comprising said the reaction product of the mono-hydroxyl-functional dialkyl phosphinates with polyol and isocyanate foam forming components.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: February 19, 2019
    Assignee: ICL-IP America Inc.
    Inventors: Andrew Piotrowski, Joseph Zilberman, Jeffrey Stowell, Mark Gelmont, Mayank Singh, Zhihao Chen, Eran Gluz
  • Publication number: 20190023873
    Abstract: The present invention provides dialkyl phosphorus-containing compounds, namely reactive mono-hydroxyl-functional dialkyl phosphinates, serving as highly efficient reactive flame retardants in flexible polyurethane foams. The invention further provides fire-retarded polyurethane compositions comprising said the reaction product of the mono-hydroxyl-functional dialkyl phosphinates with polyol and isocyanate foam forming components.
    Type: Application
    Filed: July 23, 2018
    Publication date: January 24, 2019
    Inventors: Andrew Piotrowski, Joseph Zilberman, Jeffrey Stowell, Mark Gelmont, Mayank Singh, Zhihao Chen, Eran Gluz
  • 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
  • Publication number: 20180319927
    Abstract: The present invention provides novel cyclic phosphorus-containing compounds, namely hydroxyl-functional phospholene-1-oxides, serving as highly efficient reactive flame retardants in urethane systems, particularly in flexible polyurethane foams, semi-rigid and rigid polyurethane and polyisocyanurate foams. The invention further provides fire-retarded polyurethane compositions comprising said hydroxyl-functional phospholene-1-oxides.
    Type: Application
    Filed: November 10, 2016
    Publication date: November 8, 2018
    Inventors: Joseph ZILBERMAN, Andrew PIOTROWSKI, Eran GLUZ, Jeffrey STOWELL, Mark GELMONT, Zhihao CHEN, Mayank SINGH
  • Publication number: 20180319947
    Abstract: The present invention provides novel cyclic phosphorus-containing compounds, namely hydroxyl-functional phospholene-1-oxides, serving as highly efficient reactive flame retardants in urethane systems, particularly in flexible polyurethane foams, rigid polyurethane foams and rigid polyisocyanurate foams. The invention further provides fire-retarded polyurethane compositions comprising said hydroxyl-functional phospholene-1-oxides.
    Type: Application
    Filed: November 10, 2016
    Publication date: November 8, 2018
    Inventors: Joseph ZILBERMAN, Andrew PIOTROWSKI, Eran GLUZ, Jeffrey STOWELL, Mark GLEMONT, Zhihao CHEN, Mayank SINGH
  • 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: 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: 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
  • Patent number: 8299149
    Abstract: There is provided herein a process for purifying bisphosphate comprising solvating a molten bisphosphate in a mixture of water and water miscible solvent; cooling the solution over a period and to a temperature that provides for crystallization of solid product; increasing the pH of the solution prior to, and/or during, and/or after the initiation of crystallization, and/or after crystallization, by the addition of a base; and after crystallization is complete, separating solid product from the solution; washing the separated solid product in the same and/or different mixture of water and water miscible solvent; and, washing the solid product which has been washed in the mixture with water.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: October 30, 2012
    Assignee: ICL-IP America Inc.
    Inventors: Joseph Zilberman, Dorit Canfi, Andrew Gregor, Andrew Piotrowski
  • Publication number: 20120123007
    Abstract: There is provided herein a styrenic polymer composition comprising a styrenic polymer and a flame retardant effective amount of a mixture comprising (a) at least one brominated flame retardant; and, (b) at least one solid phosphate ester that has a melting temperature of at least 80 degrees Celsius.
    Type: Application
    Filed: February 18, 2010
    Publication date: May 17, 2012
    Inventors: Smadar Hini, Michael Peled, Gideon Shikolsky, Grigory I. Titelman, Yoav-Bar Yaakov, Joseph Zilberman, Sergei V. Leychik
  • Patent number: 8158742
    Abstract: Deoxybenzoin-phosphonate and other copolymer compounds, compositions and related methods.
    Type: Grant
    Filed: January 3, 2011
    Date of Patent: April 17, 2012
    Assignee: University of Massachusetts
    Inventors: Todd Emrick, Thangamani Ranganathan, E. Bryan Coughlin, Richard J. Farris, Joseph Zilberman
  • Publication number: 20120022193
    Abstract: There is provided herein a process for purifying bisphosphate comprising solvating a molten bisphosphate in a mixture of water and water miscible solvent; cooling the solution over a period and to a temperature that provides for crystallization of solid product; increasing the pH of the solution prior to, and/or during, and/or after the initiation of crystallization, and/or after crystallization, by the addition of a base; and after crystallization is complete, separating solid product from the solution; washing the separated solid product in the same and/or different mixture of water and water miscible solvent; and, washing the solid product which has been washed in the mixture with water.
    Type: Application
    Filed: December 21, 2009
    Publication date: January 26, 2012
    Inventors: Joseph Zilberman, Dorit Canfi, Andrew Gregor, Andrew Piotrowski