Patents by Inventor Naser Pourahmady
Naser Pourahmady 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: 11597838Abstract: Polymers are disclosed that incorporate portions of secondary or tertiary polyamide segments connected with polyisocyanates. These polymers have enhanced matting properties. The enhanced matting properties are from creating an inherently matt surface from the polymer without the use of any separate fine particle size matting additives. Conventional matting agents such as fine particle size silica usually results in loss of physical properties such as haze development and porosity in the coating from the matting agent. Composites and hybrids of these polymers and other polyamides, polyurethane with vinyl polymers (acrylates) are also disclosed and claimed.Type: GrantFiled: May 6, 2022Date of Patent: March 7, 2023Assignee: Lubrizol Advanced Materials, Inc.Inventors: Gabor Erdodi, Naser Pourahmady, Jonathan J. Bird, Israel J. Skoff, Christopher Swech
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Publication number: 20220403162Abstract: The present subject matter relates to a polyurethane composition comprising a polyurethane with at least one free acid group salted with a biguanide free base.Type: ApplicationFiled: November 19, 2020Publication date: December 22, 2022Inventors: Alexander V. Lubnin, Devin Webber, Naser Pourahmady, Alec Krienen
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Publication number: 20220259430Abstract: Polymers are disclosed that incorporate portions of secondary or tertiary polyamide segments connected with polyisocyanates. These polymers have enhanced matting properties. The enhanced matting properties are from creating an inherently matt surface from the polymer without the use of any separate fine particle size matting additives. Conventional matting agents such as fine particle size silica usually results in loss of physical properties such as haze development and porosity in the coating from the matting agent. Composites and hybrids of these polymers and other polyamides, polyurethane with vinyl polymers (acrylates) are also disclosed and claimed.Type: ApplicationFiled: May 6, 2022Publication date: August 18, 2022Inventors: Gabor Erdodi, Naser Pourahmady, Jonathan J. Bird, Israel J. Skoff, Christopher Swech
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Publication number: 20220220248Abstract: The present invention relates to thermoset polymer solution, such as a polyurethanes and/or polyureas that include sufficient polyamide to give polyamide strength, adhesion, and durability, wherein the polymer solutions can be prepared as a one-component or two component solvent-borne coating composition. The polyamides give a harder, more chemical resistant, and often tougher thermoset, than similar water-borne polyurethanes rich in polyamide. The compositions of this disclosure differ from other polyamides as they have been formulated to be appropriate viscosity to use as coatings and then have crosslinking technology to form hard thermoset films.Type: ApplicationFiled: May 28, 2020Publication date: July 14, 2022Inventors: Gabor ERDODI, Naser POURAHMADY, Israel J. SKOFF, Amanda DECHANT, Christopher SWECH
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Patent number: 11359090Abstract: Polymers are disclosed that incorporate portions of secondary or tertiary polyamide segments connected with polyisocyanates. These polymers have enhanced matting properties. The enhanced matting properties are from creating an inherently matt surface from the polymer without the use of any separate fine particle size matting additives. Conventional matting agents such as fine particle size silica usually results in loss of physical properties such as haze development and porosity in the coating from the matting agent. Composites and hybrids of these polymers and other polyamides, polyurethane with vinyl polymers (acrylates) are also disclosed and claimed.Type: GrantFiled: April 30, 2018Date of Patent: June 14, 2022Assignee: Lubrizol Advanced Materials, Inc.Inventors: Gabor Erdodi, Naser Pourahmady, Jonathan J. Bird, Israel J. Skoff, Christopher Swech
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Patent number: 11130869Abstract: Copolymer dispersions containing polyamide segments in aqueous media form binders for coatings for various industrial and construction materials. The copolymers have a high percentage of amide linkages. The copolymers are linked into higher molecular weight species by reactions with polyisocyanates (which forms urea linkages if the other reactant is an amine or a urethane linkage if the other reactant is a hydroxyl group).Type: GrantFiled: August 7, 2015Date of Patent: September 28, 2021Assignee: Lubrizol Advanced Materials, IncInventors: Gabor Erdodi, Naser Pourahmady, Yutao Yang, Jonathan J. Bird, Israel J. Skoff, Darlene D. Rota, Lisa A. Blevins, Anthony D. Pajerski
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Publication number: 20200140683Abstract: Polymers are disclosed that incorporate portions of secondary or tertiary polyamide segments connected with polyisocyanates. These polymers have enhanced matting properties. The enhanced matting properties are from creating an inherently matt surface from the polymer without the use of any separate fine particle size matting additives. Conventional matting agents such as fine particle size silica usually results in loss of physical properties such as haze development and porosity in the coating from the matting agent. Composites and hybrids of these polymers and other polyamides, polyurethane with vinyl polymers (acrylates) are also disclosed and claimed.Type: ApplicationFiled: April 30, 2018Publication date: May 7, 2020Applicant: Lubrizol Advanced Materials, Inc.Inventors: Gabor Erdodi, Naser Pourahmady, Jonathan J. Bird, Israel J. Skoff, Christopher Swech
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Patent number: 10640616Abstract: An improved process for forming polyamide dispersions in water utilizing carbon dioxide to facilitate dispersion of the polyamide is disclosed. The polyamides are generally below 30,000 or 40,000 g/mole molecular weight when dispersed, but can be chain extended with polyfunctional species such as polyisocyanates after dispersion. The dispersions are useful in coatings, adhesives, and inks. Composites and hybrids of these other polyamides with vinyl polymers are also disclosed and claimed.Type: GrantFiled: November 13, 2015Date of Patent: May 5, 2020Assignee: LUBRIZOL ADVANCED MATERIALS, INC.Inventors: Gabor Erdodi, John Ta-Yuan Lai, Naser Pourahmady
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Patent number: 10266651Abstract: Water dispersible polyamides having carboxylic acid groups are disclosed. These are made by reacting polycarboxyl is acids or anhydrides thereof with amine containing monomer or an amide terminated polyamide under reaction conditions such that a few of the carboxylic acid groups are residual and can promote dispersion in water. These polyamides after dispersion can be chain extended to higher molecular weight polymers or can be terminally functionalized with reactive groups such as isocyanate, epoxy, vinyl, acetoacetonate, or silanol groups. Composites and hybrids of these polyamides with vinyl polymers are also disclosed and claimed.Type: GrantFiled: December 14, 2015Date of Patent: April 23, 2019Assignee: Lubrizol Advanced Materials, Inc.Inventors: Anthony D. Pajerski, Gabor Erdodi, Naser Pourahmady
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Patent number: 9988555Abstract: Polymers are disclosed that incorporate large portions of elastomeric polyamide oligomers connected with polyisocyanates. These polymers have enhanced properties over similar polyurethanes due to better hydrolysis resistance of polyamides over polyesters and better UV resistance of polyamides over polyethers. Polyurea linkages can also improve properties over polyurethane linkages. Composites and hybrids of these polymers and other polyamides with vinyl polymers are also disclosed and claimed.Type: GrantFiled: February 3, 2014Date of Patent: June 5, 2018Assignee: Lubrizol Advanced Materials, Inc.Inventors: Gabor Erdodi, Naser Pourahmady, John Ta-Yuan Lai, Anthony D. Pajerski
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Publication number: 20180002484Abstract: Water dispersible polyamides having carboxylic acid groups are disclosed. These are made by reacting polycarboxyl is acids or anhydrides thereof with amine containing monomer or an amide terminated polyamide under reaction conditions such that a few of the carboxylic acid groups are residual and can promote dispersion in water. These polyamides after dispersion can be chain extended to higher molecular weight polymers or can be terminally functionalized with reactive groups such as isocyanate, epoxy, vinyl, acetoacetonate, or silanol groups. Composites and hybrids of these polyamides with vinyl polymers are also disclosed and claimed.Type: ApplicationFiled: December 14, 2015Publication date: January 4, 2018Inventors: Anthony D. Pajerski, Gabor Erdodi, Naser Pourahmady
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Publication number: 20170335070Abstract: An improved process for forming polyamide dispersions in water utilizing carbon dioxide to facilitate dispersion of the polyamide is disclosed. The polyamides are generally below 30,000 or 40,000 g/mole molecular weight when dispersed, but can be chain extended with polyfunctional species such as polyisocyanates after dispersion. The dispersions are useful in coatings, adhesives, and inks. Composites and hybrids of these other polyamides with vinyl polymers are also disclosed and claimed.Type: ApplicationFiled: November 13, 2015Publication date: November 23, 2017Inventors: Gabor ERDODI, John Ta-Yuan LAI, Naser POURAHMADY, Israel J. SKOFF
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Patent number: 9809675Abstract: This invention relates to polymers made from low molecular weight polyamide oligomers and telechelic polyamides (including copolymers) containing N-alkylated amide groups in the backbone structure. The described telechelic polyamides are used as the soft segment in the described TPU. These telechelic polyamides are unique in that they have an unexpectedly low glass-transition (desirably 30 degrees C. or lower) which makes them suitable for further reaction and polymerization, allowing for the formation of the described TPU. The resulting TPU can provide improved hydrolytic, oxidative and/or thermal stability as well as improved adhesion to other materials, especially polar materials.Type: GrantFiled: February 4, 2014Date of Patent: November 7, 2017Assignee: LUBRIZOL ADVANCED MATERIALS, INC.Inventors: Naser Pourahmady, Umit G. Makal, Gabor Erdodi, John Ta-Yuan Lai
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Publication number: 20170233595Abstract: Polymer dispersions in aqueous media form binders for pretreatments, coatings and images on substrates. The polymer includes polyamide segments and may have a high percentage of tertiary amide linkages, which facilitates film formation at temperature convenient to textiles and nonwovens. The polyamides are linked with reactions with polyisocyanates (which forms urea linkages if the other reactant is an amine or a urethane linkage if the other reactant is a hydroxyl group).Type: ApplicationFiled: August 7, 2015Publication date: August 17, 2017Inventors: Gabor Erdodi, Devdatt S. Nagvekar, Kurt Schroeder, Naser Pourahmady, Yun-Long Pan
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Publication number: 20170233605Abstract: Copolymer dispersions containing polyamide segments in aqueous media form binders for coatings for various industrial and construction materials. The copolymers have a high percentage of amide linkages. The copolymers are linked into higher molecular weight species by reactions with polyisocyanates (which forms urea linkages if the other reactant is an amine or a urethane linkage if the other reactant is a hydroxyl group).Type: ApplicationFiled: August 7, 2015Publication date: August 17, 2017Inventors: Gabor Erdodi, Naser Pourahmady, Yutao Yang, Jonathan J. Bird, Israel J. Skoff, Darlene D. Rota, Lisa A. Blevins, Anthony D. Pajerski
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Publication number: 20170081474Abstract: Low glass transition temperature polyamide oligomers or telechelic polyamides are formed from monomers forming tertiary amide linkages. These polyamides can be used with co-reactants to form high molecular weight or crosslinked polymers with desirable polyamide properties.Type: ApplicationFiled: December 6, 2016Publication date: March 23, 2017Applicant: Lubrizol Advanced Materials, Inc.Inventors: Gabor Erdodi, Naser Pourahmady, John Ta-Yuan Lai
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Patent number: 9527961Abstract: Low glass transition temperature polyamide oligomers or telechelic polyamides are formed from monomers forming tertiary amide linkages. These polyamides can be used with co-reactants to form high molecular weight or crosslinked polymers with desirable polyamide properties.Type: GrantFiled: February 3, 2014Date of Patent: December 27, 2016Assignee: Lubrizol Advanced Materials, Inc.Inventors: Gabor Erdodi, Naser Pourahmady, John Ta-Yuan Lai
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Publication number: 20160009953Abstract: Polymers are disclosed that incorporate large portions of elastomeric polyamide oligomers connected with polyisocyanates. These polymers have enhanced properties over similar polyurethanes due to better hydrolysis resistance of polyamides over polyesters and better UV resistance of polyamides over polyethers. Polyurea linkages can also improve properties over polyurethane linkages. Composites and hybrids of these polymers and other polyamides with vinyl polymers are also disclosed and claimed.Type: ApplicationFiled: February 3, 2014Publication date: January 14, 2016Applicant: Lubrizol Advanced Materials, Inc.Inventors: Gabor Erdodi, Naser Pourahmady, John Ta-Yuan Lai, Anthony D. Pajersky
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Publication number: 20160002403Abstract: Low glass transition temperature polyamide oligomers or telechelic polyamides are formed from monomers forming tertiary amide linkages. These polyamides can be used with co-reactants to form high molecular weight or crosslinked polymers with desirable polyamide properties.Type: ApplicationFiled: February 3, 2014Publication date: January 7, 2016Applicant: Lubrizol Advanced Materials, Inc.Inventors: Gabor Erdodi, Naser Pourahmady, John Ta-Yuan Lai
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Publication number: 20150376325Abstract: This invention relates to polymers made from low molecular weight polyamide oligomers and telechelic polyamides (including copolymers) containing N-alkylated amide groups in the backbone structure. The described telechelic polyamides are used as the soft segment in the described TPU. These telechelic polyamides are unique in that they have an unexpectedly low glass-transition (desirably 30 degrees C. or lower) which makes them suitable for further reaction and polymerization, allowing for the formation of the described TPU. The resulting TPU can provide improved hydrolytic, oxidative and/or thermal stability as well as improved adhesion to other materials, especially polar materials.Type: ApplicationFiled: February 4, 2014Publication date: December 31, 2015Applicant: LUBRIZOL ADVANCED MATERIALS, INC.Inventors: Naser Pourahmady, Umit G. Makal, Gabor Erdodi, John Ta-Yuan Lai