Patents by Inventor Ameya Natu
Ameya Natu 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: 12325786Abstract: Binder compositions are described that include a phenol, a urea compound, formaldehyde, and at least one cyclic urea-dialdehyde compound. The cyclic urea-dialdehyde compound forms crosslinking bonds between polymers of phenol-urea-formaldehyde when the binder composition is cured. Also described are methods of making fiberglass insulation products using the above-described binder compositions. The methods may include contacting the binder composition with glass fibers and forming an amalgam of the binder composition and the glass fibers. The amalgam may be heated to form mats of the glass fibers and binder. The mats may be processed into the fiberglass insulation products.Type: GrantFiled: January 10, 2024Date of Patent: June 10, 2025Assignee: Johns ManvilleInventors: Kiarash Alavi, Ameya Natu
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Publication number: 20250092591Abstract: Binder compositions are described that include at least one formaldehyde-containing compound, a cyclic urea-dialdehyde compound, and a polyamine compound. The polyamine compound may be selected from melamine and dicyandiamide. The weight ratio of the at least one formaldehyde-containing compound to the combined weight of the cyclic urea-dialdehyde compound and the polyamine compound may be greater than or about 1:1. As described are binder-containing fiberglass products that include glass fibers and a binder. The binder may include a formaldehyde polymer characterized by crosslinking with a cyclic urea-dialdehyde and a polyamine. The binder-containing fiberglass products have reduced formaldehyde emissions.Type: ApplicationFiled: December 4, 2024Publication date: March 20, 2025Inventors: Ameya Natu, Kiarash Alavi
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Patent number: 12221525Abstract: Exotherm suppressant compositions are described that include a resin, such as a thermoset or thermoplastic resin, and at least one cyclic urea compound. Such compositions have no free formaldehyde, contain no antimony and are halogen free, for example. As described, such compositions can be used as binders, for example, to bind organic, inorganic fibers, and/or minerals. Also described are binder-containing fiberglass products that include glass fibers and a binder. The binder-containing fiberglass products have reduced formaldehyde emissions.Type: GrantFiled: February 14, 2022Date of Patent: February 11, 2025Assignee: Johns ManvilleInventors: Uranchimeg Lester, Ameya Natu, Kiarash Alavi
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Patent number: 12195898Abstract: Binder compositions are described that include at least one formaldehyde-containing compound, a cyclic urea-dialdehyde compound, and a polyamine compound. The polyamine compound may be selected from melamine and dicyandiamide. The weight ratio of the at least one formaldehyde-containing compound to the combined weight of the cyclic urea-dialdehyde compound and the polyamine compound may be greater than or about 1:1. As described are binder-containing fiberglass products that include glass fibers and a binder. The binder may include a formaldehyde polymer characterized by crosslinking with a cyclic urea-dialdehyde and a polyamine. The binder-containing fiberglass products have reduced formaldehyde emissions.Type: GrantFiled: May 12, 2021Date of Patent: January 14, 2025Assignee: Johns ManvilleInventors: Ameya Natu, Kiarash Alavi
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Publication number: 20240263050Abstract: Fiber-containing composites are described that include woven or non-woven fibers, and a binder that holds the fibers together. The binder may include the reaction product of a starch and a polycarboxylic acid. The starch has a weight average molecular weight that ranges from 1×106 Daltons to 10×106 Daltons. The fiber-containing composite has an unaged tensile strength of greater than 4.0 and an aged tensile strength greater than 3.0. Also described are methods of making the fiber-containing composites. The methods may include applying a binder composition to fibers to form coated fibers, measuring a moisture content of the coated fibers, and curing the coated fibers in a curing oven to form the fiber-containing composite. The binder composition may include a starch having a weight average molecular weight that ranges from 1×106 Daltons to 10×106 Daltons, and a polycarboxylic acid.Type: ApplicationFiled: April 17, 2024Publication date: August 8, 2024Inventors: Kiarash Alavi, Uranchimeg Lester, Ameya Natu, James Cottier, Jawed Asrar, Philip Francis Miele
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Publication number: 20240182684Abstract: Binder compositions are described that include a phenol, a urea compound, formaldehyde, and at least one cyclic urea-dialdehyde compound. The cyclic urea-dialdehyde compound forms crosslinking bonds between polymers of phenol-urea-formaldehyde when the binder composition is cured. Also described are methods of making fiberglass insulation products using the above-described binder compositions. The methods may include contacting the binder composition with glass fibers and forming an amalgam of the binder composition and the glass fibers. The amalgam may be heated to form mats of the glass fibers and binder. The mats may be processed into the fiberglass insulation products.Type: ApplicationFiled: January 10, 2024Publication date: June 6, 2024Inventors: Kiarash Alavi, Ameya Natu
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Patent number: 11987728Abstract: Fiber-containing composites are described that include woven or non-woven fibers, and a binder that holds the fibers together. The binder may include the reaction product of a starch and a polycarboxylic acid. The starch has a weight average molecular weight that ranges from 1×106 Daltons to 10×106 Daltons. The fiber-containing composite has an unaged tensile strength of greater than 4.0 and an aged tensile strength greater than 3.0. Also described are methods of making the fiber-containing composites. The methods may include applying a binder composition to fibers to form coated fibers, measuring a moisture content of the coated fibers, and curing the coated fibers in a curing oven to form the fiber-containing composite. The binder composition may include a starch having a weight average molecular weight that ranges from 1×106 Daltons to 10×106 Daltons, and a polycarboxylic acid.Type: GrantFiled: November 15, 2022Date of Patent: May 21, 2024Assignee: Johns ManvilleInventors: Kiarash Alavi, Uranchimeg Lester, Ameya Natu, James Cottier, Jawed Asrar, Philip Francis Miele
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Patent number: 11958949Abstract: Fiber-containing products are described that include a cured binder formed from a binder composition that may include a sugar alcohol having three or more carbon atoms, and a polymeric polycarboxylic acid. The binder composition may be characterized by a mole ratio of hydroxyl groups to carboxylic acid groups greater than or about 1.1:1. The fiber-containing product may also be characterized by a thermal stability that is greater than a comparative fiber-containing product made with a comparative cured binder that includes the polymeric polycarboxylic acid but lacks the sugar alcohol. The fiber-containing products may include thermal insulation products such as building insulation, pipe insulation, duct insulation, and appliance insulation.Type: GrantFiled: January 13, 2021Date of Patent: April 16, 2024Assignee: Johns ManvilleInventors: Kiarash Alavi, Ameya Natu, Uranchimeg Lester
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FORMALDEHYDE FREE COMPOSITES MADE WITH CARBOHYDRATE AND ALPHA-CARBON NUCLEOPHILE BINDER COMPOSITIONS
Publication number: 20240084950Abstract: Fiber-containing composites are described that contain woven or non-woven fibers, and a cured binder formed from a binder composition that includes (1) a reducing sugar and (2) a crosslinking agent that includes a first carbon moiety selected from an aldehyde, a ketone, a nitrile, and a nitro group, wherein an ?-carbon atom having at least one acidic hydrogen is directly bonded to the first carbon moiety. Exemplary reducing sugars include dextrose and exemplary crosslinking agents include glyoxal. Exemplary fiber-containing composites may include fiberglass insulation.Type: ApplicationFiled: November 1, 2023Publication date: March 14, 2024Inventors: Kiarash Alavi, Ameya Natu -
Patent number: 11905392Abstract: Binder compositions are described that include a phenol, a urea compound, formaldehyde, and at least one cyclic urea-dialdehyde compound. The cyclic urea-dialdehyde compound forms crosslinking bonds between polymers of phenol-urea-formaldehyde when the binder composition is cured. Also described are methods of making fiberglass insulation products using the above-described binder compositions. The methods may include contacting the binder composition with glass fibers and forming an amalgam of the binder composition and the glass fibers. The amalgam may be heated to form mats of the glass fibers and binder. The mats may be processed into the fiberglass insulation products.Type: GrantFiled: August 21, 2019Date of Patent: February 20, 2024Assignee: Johns ManvilleInventors: Kiarash Alavi, Ameya Natu
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Publication number: 20240043585Abstract: Binder compositions for fiberglass are disclosed, comprising a polycarboxylic acid such as polyacrylic acid and a crosslinking agent. The crosslinking agent comprises a polyhydroxy component formed from a reaction of an epoxidized plant oil with an amine and optionally with a phenolic compound. The molar ratio of the amine to the epoxidized plant oil at the beginning of said reaction may be greater than 1:1. Methods of making the binders and fiber-containing composites made with said binders are also described.Type: ApplicationFiled: August 3, 2022Publication date: February 8, 2024Inventors: Kiarash Alavi, Ameya Natu, Uranchimeg Lester, James Cottier, Jawed Asrar
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Formaldehyde free composites made with carbohydrate and alpha-carbon nucleophile binder compositions
Patent number: 11841106Abstract: Fiber-containing composites are described that contain woven or non-woven fibers, and a cured binder formed from a binder composition that includes (1) a reducing sugar and (2) a crosslinking agent that includes a first carbon moiety selected from an aldehyde, a ketone, a nitrile, and a nitro group, wherein an ?-carbon atom having at least one acidic hydrogen is directly bonded to the first carbon moiety. Exemplary reducing sugars include dextrose and exemplary crosslinking agents include glyoxal. Exemplary fiber-containing composites may include fiberglass insulation.Type: GrantFiled: April 21, 2016Date of Patent: December 12, 2023Assignee: Johns ManvilleInventors: Kiarash Alavi, Ameya Natu -
Publication number: 20230080427Abstract: Fiber-containing composites are described that include woven or non-woven fibers, and a binder that holds the fibers together. The binder may include the reaction product of a starch and a polycarboxylic acid. The starch has a weight average molecular weight that ranges from 1×106 Daltons to 10×106 Daltons. The fiber-containing composite has an unaged tensile strength of greater than 4.0 and an aged tensile strength greater than 3.0. Also described are methods of making the fiber-containing composites. The methods may include applying a binder composition to fibers to form coated fibers, measuring a moisture content of the coated fibers, and curing the coated fibers in a curing oven to form the fiber-containing composite. The binder composition may include a starch having a weight average molecular weight that ranges from 1×106 Daltons to 10×106 Daltons, and a polycarboxylic acid.Type: ApplicationFiled: November 15, 2022Publication date: March 16, 2023Inventors: Kiarash Alavi, Uranchimeg Lester, Ameya Natu, James Cottier, Jawed Asrar, Philip Francis Miele
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Patent number: 11505724Abstract: Fiber-containing composites are described that include woven or non-woven fibers, and a binder that holds the fibers together. The binder may include the reaction product of a starch and a polycarboxylic acid. The starch has a weight average molecular weight that ranges from 1×106 Daltons to 1×107 Daltons. The fiber-containing composite has an unaged tensile strength of greater than 4.0 and an aged tensile strength greater than 3.0. Also described are methods of making the fiber-containing composites. The methods may include applying a binder composition to fibers to form coated fibers, measuring a moisture content of the coated fibers, and curing the coated fibers in a curing oven to form the fiber-containing composite. The binder composition may include a starch having a weight average molecular weight that ranges from 1×106 Daltons to 1×107 Daltons, and a polycarboxylic acid.Type: GrantFiled: February 10, 2021Date of Patent: November 22, 2022Assignee: Johns ManvilleInventors: Kiarash Alavi, Uranchimeg Lester, Ameya Natu, James Cottier, Jawed Asrar, Philip Francis Miele
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Publication number: 20220364283Abstract: Binder compositions are described that include at least one formaldehyde-containing compound, a cyclic urea-dialdehyde compound, and a polyamine compound. The polyamine compound may be selected from melamine and dicyandiamide. The weight ratio of the at least one formaldehyde-containing compound to the combined weight of the cyclic urea-dialdehyde compound and the polyamine compound may be greater than or about 1:1. As described are binder-containing fiberglass products that include glass fibers and a binder. The binder may include a formaldehyde polymer characterized by crosslinking with a cyclic urea-dialdehyde and a polyamine. The binder-containing fiberglass products have reduced formaldehyde emissions.Type: ApplicationFiled: May 12, 2021Publication date: November 17, 2022Inventors: Ameya Natu, Kiarash Alavi
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Publication number: 20220220263Abstract: Fiber-containing products are described that include a cured binder formed from a binder composition that may include a sugar alcohol having three or more carbon atoms, and a polymeric polycarboxylic acid. The binder composition may be characterized by a mole ratio of hydroxyl groups to carboxylic acid groups greater than or about 1.1:1. The fiber-containing product may also be characterized by a thermal stability that is greater than a comparative fiber-containing product made with a comparative cured binder that includes the polymeric polycarboxylic acid but lacks the sugar alcohol. The fiber-containing products may include thermal insulation products such as building insulation, pipe insulation, duct insulation, and appliance insulation.Type: ApplicationFiled: January 13, 2021Publication date: July 14, 2022Inventors: Kiarash Alavi, Ameya Natu, Uranchimeg Lester
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Publication number: 20210163796Abstract: Fiber-containing composites are described that include woven or non-woven fibers, and a binder that holds the fibers together. The binder may include the reaction product of a starch and a polycarboxylic acid. The starch has a weight average molecular weight that ranges from 1×106 Daltons to 10×106 Daltons. The fiber-containing composite has an unaged tensile strength of greater than 4.0 and an aged tensile strength greater than 3.0. Also described are methods of making the fiber-containing composites. The methods may include applying a binder composition to fibers to form coated fibers, measuring a moisture content of the coated fibers, and curing the coated fibers in a curing oven to form the fiber-containing composite. The binder composition may include a starch having a weight average molecular weight that ranges from 1×106 Daltons to 10×106 Daltons, and a polycarboxylic acid.Type: ApplicationFiled: February 10, 2021Publication date: June 3, 2021Inventors: Kiarash Alavi, Uranchimeg Lester, Ameya Natu, James Cottier, Jawed Asrar, Philip Francis Miele
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Patent number: 10988643Abstract: Fiber-containing composites are described that include woven or non-woven fibers, and a binder that holds the fibers together. The binder may include the reaction product of a starch and a polycarboxylic acid. The starch has a weight average molecular weight that ranges from 1×106 Daltons to 1×107 Daltons. The fiber-containing composite has an unaged tensile strength of greater than 4.0 and an aged tensile strength greater than 3.0. Also described are methods of making the fiber-containing composites. The methods may include applying a binder composition to fibers to form coated fibers, measuring a moisture content of the coated fibers, and curing the coated fibers in a curing oven to form the fiber-containing composite. The binder composition may include a starch having a weight average molecular weight that ranges from 1×106 Daltons to 1×107 Daltons, and a polycarboxylic acid.Type: GrantFiled: June 19, 2018Date of Patent: April 27, 2021Assignee: Johns ManvilleInventors: Kiarash Alavi, Uranchimeg Lester, Ameya Natu, James Cottier, Jawed Asrar, Philip Francis Miele
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Publication number: 20210054171Abstract: Binder compositions are described that include a phenol, a urea compound, formaldehyde, and at least one cyclic urea-dialdehyde compound. The cyclic urea-dialdehyde compound forms crosslinking bonds between polymers of phenol-urea-formaldehyde when the binder composition is cured. Also described are methods of making fiberglass insulation products using the above-described binder compositions. The methods may include contacting the binder composition with glass fibers and forming an amalgam of the binder composition and the glass fibers. The amalgam may be heated to form mats of the glass fibers and binder. The mats may be processed into the fiberglass insulation products.Type: ApplicationFiled: August 21, 2019Publication date: February 25, 2021Inventors: Kiarash Alavi, Ameya Natu
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Publication number: 20200056327Abstract: The invention concerns a novel binder system and its use for consolidating textile fabrics, as well as to products containing such consolidated textile fabrics. The materials according to the invention are suitable for the manufacture of reinforcing inserts, optionally in combination with at least one further textile fabric, for coated sarking membranes, roofing and waterproofing sheets, as textile backings or textile reinforcement in flooring, in particular in fitted carpets and PVC flooring, or in facers in wall coatings both in the interior and exterior of buildings, as well as in furniture.Type: ApplicationFiled: August 12, 2019Publication date: February 20, 2020Inventors: Werner Groh, Agnes Frick, Kiarash Alavi, Uranchimeg Lester, Ameya Natu