Patents by Inventor Shakti L. Mukerjee
Shakti L. Mukerjee 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: 10662364Abstract: A drilling fluid comprising a carrier fluid, an aromatic polyester polyol and an additive selected from a thickener, a wetting agent, an emulsifier, a weighting agent, a pH control agent, a lubricant or mixtures thereof.Type: GrantFiled: March 16, 2016Date of Patent: May 26, 2020Assignee: RESINATE MATERIALS GROUP, INC.Inventors: Shakti L. Mukerjee, Kevin Anthony Rogers, Rick Tabor
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Patent number: 10611879Abstract: Polyester polyols made from thermoplastic polyesters are disclosed. The polyols can be made by heating a thermoplastic polyester such as virgin PET, recycled PET, or mixtures thereof, with a glycol to give a digested intermediate, which is then condensed with a dimer fatty acid to give the polyol. The invention includes a polyester polyol comprising recurring units of a glycol-digested thermoplastic polyester and a dimer fatty acid. The polyester polyol can also be made in a single step by reacting the thermoplastic polyester, glycol, and dimer acid under conditions effective to produce the polyol. High-recycle-content polyols having desirable properties and attributes for formulating polyurethane products, including aqueous polyurethane dispersions, can be made. The polyols provide a sustainable alternative to bio- or petrochemical-based polyols.Type: GrantFiled: April 15, 2019Date of Patent: April 7, 2020Assignee: RESINATE MATERIALS GROUP, INC.Inventors: Shakti L. Mukerjee, Rick Tabor, Adam William Emerson, Kevin Anthony Rogers, Eric D. Vrabel, Matthew T. Brown, Matthew J. Beatty, Jack Rogers Kovsky, Michael D. Kellerman, Michael Robert Christy
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Patent number: 10414859Abstract: Polyester polyols made from thermoplastic polyesters are disclosed. The polyols are reaction products of a thermoplastic polyester, a glycol, and a hydrophobe selected from ricinoleic acid, ethoxylated castor oil, saturated or unsaturated C9-C18 dicarboxylic acids, tung oil, soybean oil, sunflower oil, cardanol-based products, recycled cooking oil, isostearyl alcohol, hydroxy-functional materials derived from epoxidized, ozonized, or hydroformylated fatty esters or fatty acids, and mixtures thereof. In one process, the polyols are made by reacting the thermoplastic polyester with a glycol to give a digested intermediate, which is then reacted with the hydrophobe. In another process, the thermoplastic polyester, glycol, and hydrophobe are combined and reacted in a single step. These hydrophobes facilitate the production from recycled thermoplastics of polyols that have good transparency and little or no particulate settling or phase separation.Type: GrantFiled: October 19, 2015Date of Patent: September 17, 2019Assignee: RESINATE MATERIALS GROUP, INC.Inventors: Rick Tabor, Kevin Anthony Rogers, Eric D Vrabel, Matthew James Beatty, Woo-Sung Bae, Shakti L Mukerjee
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Publication number: 20190241702Abstract: Polyester polyols made from thermoplastic polyesters are disclosed. The polyols can be made by heating a thermoplastic polyester such as virgin PET, recycled PET, or mixtures thereof, with a glycol to give a digested intermediate, which is then condensed with a dimer fatty acid to give the polyol. The invention includes a polyester polyol comprising recurring units of a glycol-digested thermoplastic polyester and a dimer fatty acid. The polyester polyol can also be made in a single step by reacting the thermoplastic polyester, glycol, and dimer acid under conditions effective to produce the polyol. High-recycle-content polyols having desirable properties and attributes for formulating polyurethane products, including aqueous polyurethane dispersions, can be made. The polyols provide a sustainable alternative to bio- or petrochemical-based polyols.Type: ApplicationFiled: April 15, 2019Publication date: August 8, 2019Inventors: Shakti L. Mukerjee, Rick Tabor, Adam William Emerson, Kevin Anthony Rogers, Eric D. Vrabel, Matthew T. Brown, Matthew J. Beatty, Jack Rogers Kovsky, Michael D. Kellerman, Michael Robert Christy
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Publication number: 20190225734Abstract: Polyester polyol blends are disclosed. The blends comprise 70 to 99 wt. % of an aromatic or aliphatic polyester polyol, 0.1 to 10 wt. % of a sugar having an average hydroxyl functionality of 4 to 6 and a melting point less than 125° C., and 1 to 20 wt. % of a glycidyl compound having a boiling point of at least 200° C. at 760 mm Hg. The polyester polyol can be made by glycolysis of a recycled thermoplastic polymer, such as polyethylene terephthalate. The polyol blends are useful for the production of polymeric coatings and other products. Coatings made from blends of the polyester polyols and 0.1 to 10 wt. % of a sugar are also described.Type: ApplicationFiled: June 23, 2017Publication date: July 25, 2019Inventors: Rick Tabor, Matthew J. Beatty, Gary E. Spilman, Shakti L. Mukerjee
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Patent number: 10344121Abstract: Polyester polyols made from thermoplastic polyesters are disclosed. The polyols can be made by heating a thermoplastic polyester such as virgin PET, recycled PET, or mixtures thereof, with a glycol to give a digested intermediate, which is then condensed with a dimer fatty acid to give the polyol. The invention includes a polyester polyol comprising recurring units of a glycol-digested thermoplastic polyester and a dimer fatty acid. The polyester polyol can also be made in a single step by reacting the thermoplastic polyester, glycol, and dimer acid under conditions effective to produce the polyol. High-recycle-content polyols having desirable properties and attributes for formulating polyurethane products, including aqueous polyurethane dispersions, can be made. The polyols provide a sustainable alternative to bio- or petrochemical-based polyols.Type: GrantFiled: November 7, 2017Date of Patent: July 9, 2019Assignee: RESINATE MATERIALS GROUP, INC.Inventors: Shakti L. Mukerjee, Rick Tabor, Adam William Emerson, Kevin Anthony Rogers, Eric D. Vrabel, Matthew T. Brown, Matthew J. Beatty, Jack Rogers Kovsky, Michael D. Kellerman, Michael Robert Christy
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Publication number: 20190169397Abstract: A process for producing a polyester polyol comprising reacting a recycle stream selected from recycled PET carpet, carpet fiber, containers, textiles, articles or mixtures thereof, with a glycol in a reactor, thereby forming a digested product stream comprising polyols, and an undigested stream; and then reacting the digested product stream with a hydrophobe selected from dimer fatty acids, trimer fatty acids, oleic acid, ricinoleic acid, tung oil, corn oil, canola oil, soybean oil, sunflower oil, bacterial oil, yeast oil, algae oil, castor oil, triglycerides or alkyl carboxylate esters having saturated or unsaturated C6-C36 fatty acid units, saturated or unsaturated C6-C36 fatty acids, alkoxylated castor oil, saturated or unsaturated C9-C18 dicarboxylic acids or diols, cardanol-based products, recycled cooking oil, branched or linear C6-C36 fatty alcohols, hydroxy-functional materials derived from epoxidized, ozonized, or hydroformylated fatty esters or acids, or mixtures thereof.Type: ApplicationFiled: February 11, 2019Publication date: June 6, 2019Inventors: Rick Tabor, Shakti L. Mukerjee, Kevin Anthony Rogers, Adam W. Emerson, Eric David Vrabel, Brian Douglas Phillips
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Patent number: 10308785Abstract: A process for producing a polyester polyol comprising reacting a recycle stream selected from recycled PET carpet, carpet fiber, containers, textiles, articles or mixtures thereof, with a glycol in a reactor, thereby forming a digested product stream comprising polyols, and an undigested stream; and then reacting the digested product stream with a hydrophobe selected from dimer fatty acids, trimer fatty acids, oleic acid, ricinoleic acid, tung oil, corn oil, canola oil, soybean oil, sunflower oil, bacterial oil, yeast oil, algae oil, castor oil, triglycerides or alkyl carboxylate esters having saturated or unsaturated C6-C36 fatty acid units, saturated or unsaturated C6-C36 fatty acids, alkoxylated castor oil, saturated or unsaturated C9-C18 dicarboxylic acids or diols, cardanol-based products, recycled cooking oil, branched or linear C6-C36 fatty alcohols, hydroxy-functional materials derived from epoxidized, ozonized, or hydroformylated fatty esters or acids, or mixtures thereof.Type: GrantFiled: April 26, 2017Date of Patent: June 4, 2019Assignee: RESINATE MATERIALS GROUP, INC.Inventors: Rick Tabor, Shakti L. Mukerjee, Kevin Anthony Rogers, Eric David Vrabel, Brian Chermside, Adam W. Emerson, Brian Douglas Phillips
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Patent number: 10280277Abstract: A process for producing a polyester polyol comprising reacting a recycle stream selected from recycled PET carpet, carpet fiber, containers, textiles, articles or mixtures thereof, with a glycol in a reactor, thereby forming a digested product stream comprising polyols, and an undigested stream; and then reacting the digested product stream with a hydrophobe selected from dimer fatty acids, trimer fatty acids, oleic acid, ricinoleic acid, tung oil, corn oil, canola oil, soybean oil, sunflower oil, bacterial oil, yeast oil, algae oil, castor oil, triglycerides or alkyl carboxylate esters having saturated or unsaturated C6-C36 fatty acid units, saturated or unsaturated C6-C36 fatty acids, alkoxylated castor oil, saturated or unsaturated C9-C18 dicarboxylic acids or diols, cardanol-based products, recycled cooking oil, branched or linear C6-C36 fatty alcohols, hydroxy-functional materials derived from epoxidized, ozonized, or hydroformylated fatty esters or acids, or mixtures thereof.Type: GrantFiled: May 23, 2017Date of Patent: May 7, 2019Assignee: RESINATE MATERIALS GROUP, INC.Inventors: Rick Tabor, Shakti L. Mukerjee, Kevin Anthony Rogers, Adam W. Emerson, Eric David Vrabel, Brian Douglas Phillips
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Patent number: 10273332Abstract: Polyester polyols made from recycled polyethylene terephthalate (rPET) and processes for making them are disclosed. The rPET is heated with a C3-C10 glycol reactant to give a digested intermediate comprising glycols and a terephthalate component, which comprises 45 to 70 wt. % of bis(hydroxyalkyl)terephthalates, and preferably lesser amounts of terephthalate dimers and trimers. Treatment of the digested intermediate with activated carbon gives a polyester polyol having a color index less than 20. The polyols have desirable hydroxyl numbers, viscosities, appearance, and other attributes for formulating polyurethane products and are a sustainable alternative to bio- or petrochemical-based polyols.Type: GrantFiled: April 30, 2015Date of Patent: April 30, 2019Assignee: RESINATE MATERIALS GROUP, INC.Inventors: Rick Tabor, Eric D. Vrabel, Kevin Anthony Rogers, Shakti L. Mukerjee, Matthew J. Beatty, Adam William Emerson, Matthew T. Brown, Jack Rogers Kovsky, Michael D. Kellerman, Michael Robert Christy
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Publication number: 20190010303Abstract: A process for producing a polyester polyol comprising reacting a recycle stream selected from recycled PET carpet, carpet fiber, containers, textiles, articles or mixtures thereof, with a glycol in a reactor, thereby forming a digested product stream comprising polyols, and an undigested stream; and then reacting the digested product stream with a hydrophobe selected from dimer fatty acids, trimer fatty acids, oleic acid, ricinoleic acid, tung oil, corn oil, canola oil, soybean oil, sunflower oil, bacterial oil, yeast oil, algae oil, castor oil, triglycerides or alkyl carboxylate esters having saturated or unsaturated C6-C36 fatty acid units, saturated or unsaturated C6-C36 fatty acids, alkoxylated castor oil, saturated or unsaturated C9-C18 dicarboxylic acids or diols, cardanol-based products, recycled cooking oil, branched or linear C6-C36 fatty alcohols, hydroxy-functional materials derived from epoxidized, ozonized, or hydroformylated fatty esters or acids, or mixtures thereof.Type: ApplicationFiled: September 11, 2018Publication date: January 10, 2019Inventors: Rick Tabor, Shakti L. Mukerjee, Kevin Rogers, Eric David Vrabel, Adam W. Emerson, Brian Douglas Phillips
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Patent number: 10155837Abstract: Polyester polyol compositions are disclosed. The polyol compositions, which comprise recurring units of a digested thermoplastic polyester, a glycol, and castor oil, ricinoleic acid, or a mixture of castor oil and ricinoleic acid, have hydroxyl numbers within the range of 20 to 150 mg KOH/g and average hydroxyl functionalities within the range of 2.5 to 3.5. The invention includes flexible polyurethane foams that incorporate the polyester polyols. Sustainable polyester polyols made completely or in substantial part from recycled, post-industrial, and/or biorenewable materials such as polyethylene terephthalate, glycols, and castor oil are provided. The polyols have desirable properties for formulating flexible polyurethane foams and other products.Type: GrantFiled: August 1, 2017Date of Patent: December 18, 2018Assignee: RESINATE MATERIALS GROUP, INC.Inventors: Matt Brown, Michelle Samson, Jack R. Kovsky, Woo-Sung Bae, Shakti L. Mukerjee, Rick Tabor
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Patent number: 10119006Abstract: A process for producing a polyester polyol comprising reacting a recycle stream selected from recycled PET carpet, carpet fiber, containers, textiles, articles or mixtures thereof, with a glycol in a reactor, thereby forming a digested product stream comprising polyols, and an undigested stream; and then reacting the digested product stream with a hydrophobe selected from dimer fatty acids, trimer fatty acids, oleic acid, ricinoleic acid, tung oil, corn oil, canola oil, soybean oil, sunflower oil, bacterial oil, yeast oil, algae oil, castor oil, triglycerides or alkyl carboxylate esters having saturated or unsaturated C6-C36 fatty acid units, saturated or unsaturated C6-C36 fatty acids, alkoxylated castor oil, saturated or unsaturated C9-C18 dicarboxylic acids or diols, cardanol-based products, recycled cooking oil, branched or linear C6-C36 fatty alcohols, hydroxy-functional materials derived from epoxidized, ozonized, or hydroformylated fatty esters or acids, or mixtures thereof.Type: GrantFiled: April 15, 2016Date of Patent: November 6, 2018Inventors: Rick Tabor, Shakti L. Mukerjee, Kevin Rogers, Adam W. Emerson, Brian Douglas Phillips
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Publication number: 20180237573Abstract: The present invention relates to polyester polyols made from aromatic polyacid sources such as thermoplastic polyesters. The polyols can be made by heating a thermoplastic polyester such as virgin polyethylene terephthalate, recycled polyethylene terephthalate, or mixtures thereof, with a glycol to give a digested intermediate which is then reacted with a digestible polymer, which can be obtained from various recycle waste streams. The polyester polyols comprise a glycol-digested polyacid source and a further digestible polymer. The polyester polyols provide a sustainable alternative to petrochemical or biochemical based polyester polyols.Type: ApplicationFiled: April 23, 2018Publication date: August 23, 2018Inventors: Rick Tabor, Eric David Vrabel, Matthew J. Beatty, Gary E. Spilman, Kevin Anthony Rogers, Michael Robert Christy, Matthew Thomas Brown, Jack Rogers Kovsky, Woo-Sung Bae, Shakti L. Mukerjee
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Patent number: 9951171Abstract: The present invention relates to polyester polyols made from aromatic polyacid sources such as thermoplastic polyesters. The polyols can be made by heating a thermoplastic polyester such as virgin polyethylene terephthalate, recycled polyethylene terephthalate, or mixtures thereof, with a glycol to give a digested intermediate which is then reacted with a digestible polymer, which can be obtained from various recycle waste streams. The polyester polyols comprise a glycol-digested polyacid source and a further digestible polymer. The polyester polyols provide a sustainable alternative to petrochemical or biochemical based polyester polyols.Type: GrantFiled: October 14, 2015Date of Patent: April 24, 2018Assignee: Resinate Materials Group, Inc.Inventors: Rick Tabor, Eric David Vrabel, Matthew J Beatty, Gary E. Spilman, Kevin Anthony Rogers, Michael Robert Christy, Matthew Thomas Brown, Jack Rogers Kovsky, Woo-Sung Bae, Shakti L Mukerjee
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Publication number: 20180066174Abstract: A drilling fluid comprising a carrier fluid, an aromatic polyester polyol and an additive selected from a thickener, a wetting agent, an emulsifier, a weighting agent, a pH control agent, a lubricant or mixtures thereof.Type: ApplicationFiled: March 16, 2016Publication date: March 8, 2018Inventors: Shakti L. Mukerjee, Kevin Anthony Rogers, Rick Tabor
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Publication number: 20180066106Abstract: Polyester polyols made from thermoplastic polyesters are disclosed. The polyols can be made by heating a thermoplastic polyester such as virgin PET, recycled PET, or mixtures thereof, with a glycol to give a digested intermediate, which is then condensed with a dimer fatty acid to give the polyol. The invention includes a polyester polyol comprising recurring units of a glycol-digested thermoplastic polyester and a dimer fatty acid. The polyester polyol can also be made in a single step by reacting the thermoplastic polyester, glycol, and dimer acid under conditions effective to produce the polyol. High-recycle-content polyols having desirable properties and attributes for formulating polyurethane products, including aqueous polyurethane dispersions, can be made. The polyols provide a sustainable alternative to bio- or petrochemical-based polyols.Type: ApplicationFiled: November 7, 2017Publication date: March 8, 2018Inventors: Shakti L. Mukerjee, Rick Tabor, Adam William Emerson, Kevin Anthony Rogers, Eric D. Vrabel, Matthew T. Brown, Matthew J. Beatty, Jack Rogers Kovsky, Michael D. Kellerman, Michael Robert Christy
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Patent number: 9896540Abstract: The present invention relates to polyester polyols made from aromatic polyacid sources such as thermoplastic polyesters. The polyols can be made by heating a thermoplastic polyester such as virgin polyethylene terephthalate, recycled polyethylene terephthalate, or mixtures thereof, with a glycol to give a digested intermediate which is then reacted with a digestible polymer, which can be obtained from various recycle waste streams. The polyester polyols comprise a glycol-digested polyacid source and a further digestible polymer. The polyester polyols provide a sustainable alternative to petrochemical or biochemical based polyester polyols.Type: GrantFiled: July 8, 2016Date of Patent: February 20, 2018Assignee: Resinate Materials Group, Inc.Inventors: Rick Tabor, Eric David Vrabel, Matthew J Beatty, Gary E. Spilman, Kevin Anthony Rogers, Michael Robert Christy, Matthew Thomas Brown, Jack Rogers Kovsky, Woo-Sung Bae, Shakti L Mukerjee
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Patent number: 9890243Abstract: The present invention relates to polymeric plasticizer compositions made from an aromatic acid source, a glycol, and a C4-C36 monocarboxylic acid, or ester or anhydride thereof. The aromatic acid source can include polymeric materials such as recycled polyethylene terephthalate (PET). The present invention also relates to methods for making the polymeric plasticizer compositions, to methods of plasticizing polymeric materials, and to plasticized polymeric compositions. The polymeric plasticizers are useful for plasticizing various polymers, such as thermoplastic polymers, including, for example, polyvinyl chloride (PVC). The polymeric plasticizers provide a sustainable alternative to conventional phthalate ester plasticizers, such as diisooctyl phthalate (DOP).Type: GrantFiled: January 6, 2017Date of Patent: February 13, 2018Assignee: Resinate Materials Group, Inc.Inventors: Woo-Sung Bae, Rick Tabor, Kevin Anthony Rogers, Shakti L. Mukerjee
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Patent number: 9884938Abstract: The present invention relates to polymeric plasticizer compositions made from an aromatic acid source, a glycol, and a C4-C36 monocarboxylic acid, or ester or anhydride thereof. The aromatic acid source can include polymeric materials such as recycled polyethylene terephthalate (PET). The present invention also relates to methods for making the polymeric plasticizer compositions, to methods of plasticizing polymeric materials, and to plasticized polymeric compositions. The polymeric plasticizers are useful for plasticizing various polymers, such as thermoplastic polymers, including, for example, polyvinyl chloride (PVC). The polymeric plasticizers provide a sustainable alternative to conventional phthalate ester plasticizers, such as diisooctyl phthalate (DOP).Type: GrantFiled: January 17, 2017Date of Patent: February 6, 2018Assignee: Resinate Materials Group, Inc.Inventors: Woo-Sung Bae, Rick Tabor, Kevin Anthony Rogers, Shakti L. Mukerjee