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).
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Patent number: 11746265Abstract: 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: GrantFiled: May 22, 2017Date of Patent: September 5, 2023Assignee: The Dow Chemical CompanyInventors: Mikhail Y. Gelfer, Rui Xie, Jonathan Barrus
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Patent number: 11447671Abstract: 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: GrantFiled: May 22, 2017Date of Patent: September 20, 2022Assignee: Dow Global Technologies LLCInventors: Rui Xie, Mikhail Y. Gelfer, Jonathan Barrus
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Patent number: 11220617Abstract: 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: GrantFiled: May 22, 2017Date of Patent: January 11, 2022Assignee: Dow Global Technologies LLCInventors: Rui Xie, Mikhail Y. Gelfer, Jonathan Barrus
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Publication number: 20200181467Abstract: 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: ApplicationFiled: May 22, 2017Publication date: June 11, 2020Inventors: Rui Xie, Mikhail Y. Gelfer, Jonathan Barrus
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Patent number: 10329371Abstract: 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: GrantFiled: October 21, 2014Date of Patent: June 25, 2019Assignee: Dow Global Technologies LLCInventors: Mikhail Y. Gelfer, Amber Stephenson, Venkat S. Minnikanti, Mark Brown, II
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Publication number: 20190169477Abstract: 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: ApplicationFiled: May 22, 2017Publication date: June 6, 2019Inventors: Rui Xie, Mikhail Y. Gelfer, Jonathan Barrus
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Patent number: 10301481Abstract: 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: GrantFiled: October 21, 2014Date of Patent: May 28, 2019Assignee: Dow Global Technologies LLCInventors: Mikhail Y. Gelfer, Amber Stephenson, Venkat S. Minnikanti, Mark Brown, II, Kamesh Vyakaranam
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Patent number: 10208178Abstract: 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: GrantFiled: October 21, 2014Date of Patent: February 19, 2019Assignee: Dow Global Technologies LLCInventors: Mikhail Y. Gelfer, Amber Stephenson, Venkat S. Minnikanti, Mark Brown, II, Mark R. Whelan, Arjun A Raghuraman
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Patent number: 10184039Abstract: 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: GrantFiled: October 21, 2014Date of Patent: January 22, 2019Assignee: Dow Global Technologies LLCInventors: Mikhail Y. Gelfer, Amber Stephenson, Mark Brown, II
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Patent number: 10066136Abstract: 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: GrantFiled: March 31, 2015Date of Patent: September 4, 2018Assignee: Dow Global Technologies LLCInventors: Bindu Krishnan, Laura A. Grier, William H. Heath, Adam C. Colson, Mikhail Y. Gelfer, Gary L. Jialanella
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Patent number: 10023763Abstract: 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: GrantFiled: September 22, 2014Date of Patent: July 17, 2018Inventors: Avery L. Watkins, Mikhail Y. Gelfer, Wei Li, Yi Zhang, Jiang Li
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Publication number: 20170233604Abstract: 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: ApplicationFiled: September 22, 2014Publication date: August 17, 2017Inventors: Avery L. Watkins, Mikhail Y. Gelfer, Wei Li, Yi Zhang, Jiang Li
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Publication number: 20170029673Abstract: 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: ApplicationFiled: March 31, 2015Publication date: February 2, 2017Applicant: Dow Global Technologies LLCInventors: Bindu Krishnan, Laura A. Grier, William H. Heath, Adam C. Colson, Mikhail Y Gelfer, Gary L. Jialanella
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Publication number: 20160272752Abstract: 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: ApplicationFiled: October 21, 2014Publication date: September 22, 2016Inventors: Mikhail Y. Gelfer, Amber Stephenson, Venkat S. Minnikanti, Mark Brown, II
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Publication number: 20160244586Abstract: 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: ApplicationFiled: October 21, 2014Publication date: August 25, 2016Inventors: Mikhail Y. Gelfer, Amber Stephenson, Venkat S. Minnikanti, Mark Brown, II, Mark R. Whelan, Arjun A Raghuraman
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Publication number: 20160230023Abstract: 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: ApplicationFiled: October 21, 2014Publication date: August 11, 2016Inventors: Mikhail Y. Gelfer, Amber Stephenson, Venkat S. Minnikanti, Mark Brown, II, Kamesh Vyakaranam
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Publication number: 20160229978Abstract: 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: ApplicationFiled: October 21, 2014Publication date: August 11, 2016Inventors: Mikhail Y. Gelfer, Amber Stephenson, Mark Brown, II
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Publication number: 20140364528Abstract: 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: ApplicationFiled: December 13, 2011Publication date: December 11, 2014Applicant: DOW GLOBAL TECHNOLOGIES LLCInventors: Eric M. Rexrode, David E. Snider, Woo-Sung Bae, Mikhail Y. Gelfer, Jorge Jimenez
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Publication number: 20130184366Abstract: 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: ApplicationFiled: September 15, 2011Publication date: July 18, 2013Applicant: DOW GLOBAL TECHNOLOGIES LLCInventors: Jorge Jimenez, Woo-Sung Bae, Giuseppe Lista, Mikhail Y. Gelfer, Vanni Parenti, Hans Kramer
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Patent number: 5589159Abstract: A method for treating hypersensitive teeth by treating the teeth with an oral composition comprising hectorite clay, especially Laponite clay.Type: GrantFiled: April 11, 1995Date of Patent: December 31, 1996Assignee: Block Drug Company Inc.Inventors: Kenneth Markowitz, Mikhail Y. Gelfer