Patents by Inventor Mikhail Y. Gelfer

Mikhail Y. Gelfer 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: 11746265
    Abstract: A solvent-based two-component adhesive composition is disclosed. The adhesive composition comprises an isocyanate component and a polyol component. One or both of the isocyanate component and polyol component comprises at least one butylene oxide-based polyol. The at least one butylene oxide-based polyol can be selected from the group consisting of a polybutylene oxide polyols, polybutylene oxide-propylene oxide copolymer polyols, polybutylene oxide-polyethylene oxide copolymer polyols, and combinations of two or more thereof. A method for forming a laminate is also disclosed. The method comprises forming an adhesive composition, the composition comprising at least one polyol comprising at least one butylene oxide-based polyol, applying a layer of the adhesive composition to a surface of a film, bringing the layer into contact with a surface of another film to form a laminate, and curing the adhesive composition. A laminate formed by this method is also disclosed.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: September 5, 2023
    Assignee: The Dow Chemical Company
    Inventors: Mikhail Y. Gelfer, Rui Xie, Jonathan Barrus
  • Patent number: 11447671
    Abstract: A two-component adhesive composition is disclosed. The adhesive composition comprises an isocyanate component comprising an isocyanate-terminated prepolymer that is the reaction product of a polyisocyanate and an isocyanate reactive component having an average molecular weight greater than 1,000 that comprises a polyester polyol that is the reaction product of a polyhydric alcohol and a polybasic acid. The NCO content of the isocyanate component is, optionally, between 3 and 9%. The isocyanate reactive component comprises a polyester polyol that accounts for 50 wt % or more of the isocyanate reactive component. The composition further comprises a polyol component comprising polyether polyols having an average molecular weight less than 1,500. The composition still further comprises an adhesion promoter. The average functionality of the adhesive composition is from 2 to 2.4. The adhesive composition provides for improved performance and processability. A method for forming a laminate is also disclosed.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: September 20, 2022
    Assignee: Dow Global Technologies LLC
    Inventors: Rui Xie, Mikhail Y. Gelfer, Jonathan Barrus
  • Patent number: 11220617
    Abstract: A two-component adhesive composition is disclosed. The adhesive composition comprises an isocyanate component comprising an isocyanate-terminated prepolymer that is the reaction product of a polyisocyanate and an isocyanate reactive component having an average molecular weight less than 1,500. The NCO content of the isocyanate component without solvent is between 9 and 18%. The composition further comprises a polyol component comprising a polyester polyol having a molecular weight greater than 1,500 that is the reaction product of a polyhydric alcohol and a polybasic acid. The composition still further comprises an adhesion promoter. The average functionality of the adhesive composition is from 2 to 2.4. The adhesive composition provides for improved performance and processability at a solid content greater than 45 wt %. A methods of forming the adhesive composition is also disclosed. A laminate formed by this method is also disclosed.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: January 11, 2022
    Assignee: Dow Global Technologies LLC
    Inventors: Rui Xie, Mikhail Y. Gelfer, Jonathan Barrus
  • Publication number: 20200181467
    Abstract: A two-component adhesive composition is disclosed. The adhesive composition comprises an isocyanate component comprising an isocyanate-terminated prepolymer that is the reaction product of a polyisocyanate and an isocyanate reactive component having an average molecular weight greater than 1,000 that comprises a polyester polyol that is the reaction product of a polyhydric alcohol and a polybasic acid. The NCO content of the isocyanate component is, optionally, between 3 and 9%. The isocyanate reactive component comprises a polyester polyol that accounts for 50 wt % or more of the isocyanate reactive component. The composition further comprises a polyol component comprising polyether polyols having an average molecular weight less than 1,500. The composition still further comprises an adhesion promoter. The average functionality of the adhesive composition is from 2 to 2.4. The adhesive composition provides for improved performance and processability. A method for forming a laminate is also disclosed.
    Type: Application
    Filed: May 22, 2017
    Publication date: June 11, 2020
    Inventors: Rui Xie, Mikhail Y. Gelfer, Jonathan Barrus
  • Patent number: 10329371
    Abstract: Syntactic polyurethane elastomers are made using a non-mercury catalyst. The elastomer is made from a reaction mixture containing a polymer polyol which has a liquid polyether polyol as a continuous phase and polymer particles dispersed in the liquid polyether polyol, a chain extender, a polyisocyanate and microspheres. The elastomer adheres well to itself, which makes it very useful as thermal insulation for pipelines and other structures that have a complex geometry.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: June 25, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Mikhail Y. Gelfer, Amber Stephenson, Venkat S. Minnikanti, Mark Brown, II
  • Publication number: 20190169477
    Abstract: A two-component adhesive composition is disclosed. The adhesive composition comprises an isocyanate component comprising an isocyanate-terminated prepolymer that is the reaction product of a polyisocyanate and an isocyanate reactive component having an average molecular weight less than 1,500. The NCO content of the isocyanate component without solvent is between 9 and 18%. The composition further comprises a polyol component comprising a polyester polyol having a molecular weight greater than 1,500 that is the reaction product of a polyhydric alcohol and a polybasic acid. The composition still further comprises an adhesion promoter. The average functionality of the adhesive composition is from 2 to 2.4. The adhesive composition provides for improved performance and processability at a solid content greater than 45 wt %. A methods of forming the adhesive composition is also disclosed. A laminate formed by this method is also disclosed.
    Type: Application
    Filed: May 22, 2017
    Publication date: June 6, 2019
    Inventors: Rui Xie, Mikhail Y. Gelfer, Jonathan Barrus
  • Patent number: 10301481
    Abstract: Syntactic polyurethane elastomers are made using a non-mercury catalyst. The elastomer is made from a reaction mixture containing a polyether polyol having a low amount of terminal unsaturation, a chain extender, a polyisocyanate and microspheres. The elastomer adheres well to itself, which makes it very useful as thermal insulation for pipelines and other structures that have a complex geometry.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: May 28, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Mikhail Y. Gelfer, Amber Stephenson, Venkat S. Minnikanti, Mark Brown, II, Kamesh Vyakaranam
  • Patent number: 10208178
    Abstract: Syntactic polyurethane elastomers are made using a non-mercury catalyst. The elastomer is made from a reaction mixture containing a polyether polyol, a chain extender, a polyisocyanate and microspheres. The elastomer is characterized morphologically by the presence of small discrete morphological domains 0.1 to 3 ?m in diameter, and the substantial absence of discrete morphological domains 5 to 30 ?m in diameter. The elastomer adheres well to itself, which makes it very useful as thermal insulation for pipelines and other structures that have a complex geometry.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: February 19, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Mikhail Y. Gelfer, Amber Stephenson, Venkat S. Minnikanti, Mark Brown, II, Mark R. Whelan, Arjun A Raghuraman
  • Patent number: 10184039
    Abstract: Syntactic polyurethane elastomers are made using a non-mercury catalyst. The elastomer is made from a reaction mixture containing a prepolymer made from a polyether polyol and a polyisocyanate, a chain extender, a polyisocyanate and microspheres. The elastomer adheres well to itself, which makes it very useful as thermal insulation for pipelines and other structures that have a complex geometry.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: January 22, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Mikhail Y. Gelfer, Amber Stephenson, Mark Brown, II
  • Patent number: 10066136
    Abstract: The invention relates to isocyanate-free elastomer adhesives based on hybrid urethane-acrylate epoxies. The hybrid shows properties consistent for structural adhesives with excellent mechanical and thermal stability, and low read-through. The adhesives are suitable for use in industry, e.g., as adhesives for automotive applications.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: September 4, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Bindu Krishnan, Laura A. Grier, William H. Heath, Adam C. Colson, Mikhail Y. Gelfer, Gary L. Jialanella
  • Patent number: 10023763
    Abstract: Provided is a sprayable polyurethane coating, comprising the reaction product of an isocyanate component and an isocyanate-reactive component, wherein the isocyanate component includes an isocyanate, and the isocyanate-reactive component includes a cardanol-modified epoxy polyol. The cardanol-modified epoxy polyol is a reaction product of an epoxy component and an epoxy-reactive component at a ratio of epoxy groups to epoxy reactive groups from 1:0.95 to 1:5, and the epoxy-reactive component includes a cardanol component. A sprayable polyurethane based reaction system comprising the sprayable polyurethane coating and a process for forming the sprayable polyurethane coating are also provided.
    Type: Grant
    Filed: September 22, 2014
    Date of Patent: July 17, 2018
    Inventors: Avery L. Watkins, Mikhail Y. Gelfer, Wei Li, Yi Zhang, Jiang Li
  • Publication number: 20170233604
    Abstract: Provided is a sprayable polyurethane coating, comprising the reaction product of an isocyanate component and an isocyanate-reactive component, wherein the isocyanate component includes an isocyanate, and the isocyanate-reactive component includes a cardanol-modified epoxy polyol. The cardanol-modified epoxy polyol is a reaction product of an epoxy component and an epoxy-reactive component at a ratio of epoxy groups to epoxy reactive groups from 1:0.95 to 1:5, and the epoxy-reactive component includes a cardanol component. A sprayable polyurethane based reaction system comprising the sprayable polyurethane coating and a process for forming the sprayable polyurethane coating are also provided.
    Type: Application
    Filed: September 22, 2014
    Publication date: August 17, 2017
    Inventors: Avery L. Watkins, Mikhail Y. Gelfer, Wei Li, Yi Zhang, Jiang Li
  • Publication number: 20170029673
    Abstract: The invention relates to isocyanate-free elastomer adhesives based on hybrid urethane-acrylate epoxies. The hybrid shows properties consistent for structural adhesives with excellent mechanical and thermal stability, and low read-through. The adhesives are suitable for use in industry, e.g., as adhesives for automotive applications.
    Type: Application
    Filed: March 31, 2015
    Publication date: February 2, 2017
    Applicant: Dow Global Technologies LLC
    Inventors: Bindu Krishnan, Laura A. Grier, William H. Heath, Adam C. Colson, Mikhail Y Gelfer, Gary L. Jialanella
  • Publication number: 20160272752
    Abstract: Syntactic polyurethane elastomers are made using a non-mercury catalyst. The elastomer is made from a reaction mixture containing a polymer polyol which has a liquid polyether polyol as a continuous phase and polymer particles dispersed in the liquid polyether polyol, a chain extender, a polyisocyanate and microspheres. The elastomer adheres well to itself, which makes it very useful as thermal insulation for pipelines and other structures that have a complex geometry.
    Type: Application
    Filed: October 21, 2014
    Publication date: September 22, 2016
    Inventors: Mikhail Y. Gelfer, Amber Stephenson, Venkat S. Minnikanti, Mark Brown, II
  • Publication number: 20160244586
    Abstract: Syntactic polyurethane elastomers are made using a non-mercury catalyst. The elastomer is made from a reaction mixture containing a polyether polyol, a chain extender, a polyisocyanate and microspheres. The elastomer is characterized morphologically by the presence of small discrete morphological domains 0.1 to 3 ?m in diameter, and the substantial absence of discrete morphological domains 5 to 30 ?m in diameter. The elastomer adheres well to itself, which makes it very useful as thermal insulation for pipelines and other structures that have a complex geometry.
    Type: Application
    Filed: October 21, 2014
    Publication date: August 25, 2016
    Inventors: Mikhail Y. Gelfer, Amber Stephenson, Venkat S. Minnikanti, Mark Brown, II, Mark R. Whelan, Arjun A Raghuraman
  • Publication number: 20160230023
    Abstract: Syntactic polyurethane elastomers are made using a non-mercury catalyst. The elastomer is made from a reaction mixture containing a polyether polyol having a low amount of terminal unsaturation, a chain extender, a polyisocyanate and microspheres The elastomer adheres well to itself, which makes it very useful as thermal insulation for pipelines and other structures that have a complex geometry.
    Type: Application
    Filed: October 21, 2014
    Publication date: August 11, 2016
    Inventors: Mikhail Y. Gelfer, Amber Stephenson, Venkat S. Minnikanti, Mark Brown, II, Kamesh Vyakaranam
  • Publication number: 20160229978
    Abstract: Syntactic polyurethane elastomers are made using a non-mercury catalyst. The elastomer is made from a reaction mixture containing a prepolymer made from a polyether polyol and a polyisocyanate, a chain extender, a polyisocyanate and microspheres. The elastomer adheres well to itself, which makes it very useful as thermal insulation for pipelines and other structures that have a complex geometry.
    Type: Application
    Filed: October 21, 2014
    Publication date: August 11, 2016
    Inventors: Mikhail Y. Gelfer, Amber Stephenson, Mark Brown, II
  • Publication number: 20140364528
    Abstract: A polyol formulation comprising certain type of polyester polyols useful in the preparation of rigid polyurethane foams having low surface friability is provided. In one embodiment, a reaction system for production of a rigid foam is provided. The reaction system comprises a polyester polyol and one or more polyisocyanates, wherein the polyester polyol and the polyisocyanates are mixed in amounts sufficient to provide a rigid polyurethane foam. The polyester polyol comprises the reaction product of from 20 to 60 weight percent of an aromatic component comprising at least 80 mole percent or greater of terephthalic acid, from 20 to 60 weight percent of a polyethylene glycol having a number average molecular weight from 150 to 1,000, from 5 to 20 weight percent of a glycol having a functionality of 2 and molecular weight of 60 to 250 and from 5 to 20 weight percent of a glycol having a functionality of at least 3 and a molecular weight of 60 to 250.
    Type: Application
    Filed: December 13, 2011
    Publication date: December 11, 2014
    Applicant: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Eric M. Rexrode, David E. Snider, Woo-Sung Bae, Mikhail Y. Gelfer, Jorge Jimenez
  • Publication number: 20130184366
    Abstract: The present invention discloses aromatic polyester polyols suitable for blending with other polyols or other materials mutually compatible with the polyester polyols to achieve polyurethane and polyisocyanurate products. In particular the present invention discloses polyester polyols comprising the reaction of: A) an aromatic component comprising 80 mole percent or greater of terephthalic acid; B) a polyether polyol having a nominal functionality greater than 2 and less than or equal to 4, a molecular weight of 250 to 1000 and has a polyoxypropylene content of at least 70% by weight of the polyol; and C) a glycol other than B having a molecular weight from 60 to 250; wherein A, B, and C are present in the reaction on a percent weight bases of 20 to 60 weight percent A); 15 to 70 weight percent of B); and 10 to 50 weight percent of C).
    Type: Application
    Filed: September 15, 2011
    Publication date: July 18, 2013
    Applicant: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Jorge Jimenez, Woo-Sung Bae, Giuseppe Lista, Mikhail Y. Gelfer, Vanni Parenti, Hans Kramer
  • Patent number: 5589159
    Abstract: A method for treating hypersensitive teeth by treating the teeth with an oral composition comprising hectorite clay, especially Laponite clay.
    Type: Grant
    Filed: April 11, 1995
    Date of Patent: December 31, 1996
    Assignee: Block Drug Company Inc.
    Inventors: Kenneth Markowitz, Mikhail Y. Gelfer