Patents by Inventor Lyndsay M. Leal
Lyndsay M. Leal 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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Publication number: 20240115482Abstract: A formulation for the care of damaged hair is provided, comprising: a vehicle; a silicone; and a deposition aid, wherein the deposition aid is a cationic dextran polymer, comprising a dextran base polymer functionalized with quaternary ammonium groups; wherein the dextran base polymer has a weight average molecular weight of 50,000 to 3,000,000 Daltons; wherein the quaternary ammonium groups include (i) a quaternary ammonium group of formula (II) bound to a pendent oxygen on the dextran base polymer (ii) a quaternary ammonium group of formula (III) bound to a pendent oxygen on the dextran base polymer wherein is pendent oxygen on the dextran base polymer; wherein X is a divalent linking group; wherein each R2 is independently selected from a C1-4 alkyl group; wherein each R3 is independently selected from a C1-4 alkyl group; and wherein each R4 is independently selected from a C5-20 alkyl group.Type: ApplicationFiled: May 6, 2022Publication date: April 11, 2024Inventors: Lyndsay M. Leal, Lu Bai, Emmett M. Partain, III, Daniel S. Miller, Benjamin Reiner
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Publication number: 20240099956Abstract: An aqueous personal care rinse off composition is provided, comprising: a dermatologically acceptable aqueous vehicle; a dermatologically acceptable cleaning surfactant; and a suds enhancing structurant; wherein the suds enhancing structurant comprises a crosslinked cellulose ether containing 0.1 to 1.0 wt %, based on weight of the crosslinked cellulose ether, of polyether groups.Type: ApplicationFiled: February 22, 2022Publication date: March 28, 2024Inventors: German Parada, Lyndsay M. Leal, Alexandra Hild, Jörg Neubauer, Bethany K. Johnson
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Publication number: 20240091123Abstract: A hair conditioner formulation is provided, comprising: a dermatologically acceptable vehicle; and a conditioning polymer, wherein the conditioning polymer is a dextran polymer crosslinked with a dextran crosslinking agent of formula (I) wherein X is a halogen; wherein each R1 is independently selected from a substituted or unsubstituted C1-6 alkyl group; wherein each R2 is independently selected from the group consisting of a C1-6 alkanediyl group; wherein Y is a divalent bridging group.Type: ApplicationFiled: March 9, 2022Publication date: March 21, 2024Inventors: Nisaraporn Suthiwangcharoen, Lyndsay M. Leal, Michaeleen Pacholski, Shannon Golden, Emmett M. Partain, III
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Publication number: 20240091124Abstract: A hair conditioner formulation is provided, comprising: a dermatologically acceptable vehicle; and a conditioning polymer, wherein the conditioning polymer is a cationic dextran polymer, comprising a dextran polymer functionalized with quaternary ammonium groups; wherein the dextran polymer has a weight average molecular weight of 50,000 to 3,000,000 Daltons; wherein the quaternary ammonium groups are selected from the group consisting of quaternary ammonium moieties of formula (A) bound to a pendent oxygen on the dextran polymer wherein is a pendent oxygen on the dextran polymer; wherein X is a divalent linking group bonding the quaternary ammonium moiety to the pendent oxygen on the dextran polymer; wherein each R2 is independently selected N from the group consisting of a C1-3 alkyl group; and wherein each R3 is independently selected from the group consisting of a linear or branched C4-16 alkyl group.Type: ApplicationFiled: March 9, 2022Publication date: March 21, 2024Inventors: Nisaraporn Suthiwangcharoen, Lyndsay M. Leal, Michaeleen Pacholski, Shannon Golden, Emmett M. Partain, III, Lu Bai, Daniel S. Miller
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Patent number: 11931447Abstract: A polymer/hydrophilic silica blend is provided comprising (a) a thickening polymer powder, comprising (i) structural units of C4-8 alkyl (meth)acrylate monomer; (ii) structural units of (meth)acrylic acid monomer, and (iii) structural units of a specialized associative monomer of formula (I) wherein R1 is a linear saturated C10-20 alkyl group; and n is an average of 20 to 28; and (b) a hydrophilic silica powder; wherein the weight ratio of hydrophilic silica powder to thickening polymer powder in the polymer/hydrophilic silica blend is 1:9 to 9:1. Also provided are personal care compositions containing same and methods of using same.Type: GrantFiled: April 16, 2020Date of Patent: March 19, 2024Assignees: Dow Global Technologies LLC, Rohm and Haas CompanyInventors: Luqing Qi, Liang Chen, Lu Bai, Lyndsay M. Leal, David M. Meunier, Yunshen Chen, Fanwen Zeng
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Publication number: 20240082137Abstract: A shampoo formulation is provided, comprising: dermatologically acceptable vehicle; dermatologically acceptable silicone; sodium lauryl ether surfactant, wherein the sodium lauryl ether surfactant is selected from sodium lauryl ether sulfate having an average two —(OCH2CH2)— groups per molecule, sodium lauryl ether sulfate having an average three —(OCH2CH2)— groups per molecule and mixtures thereof; deposition aid polymer, wherein the deposition aid polymer is cationic dextran polymer, comprising dextran polymer functionalized with quaternary ammonium groups; wherein the dextran polymer has weight average molecular weight of 50,000 to 3,000,000 Daltons; wherein quaternary ammonium groups are selected from quaternary ammonium moieties of formula (A) bound to pendent oxygen on dextran polymer wherein is pendent oxygen on dextran polymer; wherein X is divalent linking group bonding quaternary ammonium moiety to pendent oxygen on dextran polymer; wherein each R2 is independently selected from C1-4 alkyl gType: ApplicationFiled: March 9, 2022Publication date: March 14, 2024Inventors: Lu Bai, Emmett M. Partain, III, Lyndsay M. Leal, Daniel S. Miller, Michaeleen Pacholski, Jennifer P. Todd
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Publication number: 20230365896Abstract: A laundry treatment formulation is provided, comprising: a modified carbohydrate polymer, wherein the modified carbohydrate polymer comprises a cellulose ether base material functionalized with (i) trialkyl ammonium moieties of formula (I) wherein each R1 is independently selected from the group consisting of a C1-7 alkyl group and wherein the modified carbohydrate polymer has a Kjeldahl nitrogen content, TKN, corrected for ash and volatiles, of 0.75 to 2.5 wt %; and (ii) hydrophobic substituents each having 16 carbon atoms; wherein the modified carbohydrate polymer comprises 0.005 to 1.5 wt %, based on weight of the cellulose ether base material, of the hydrophobic substituents; wherein the hydrophobic substituents are randomly distributed across the backbone of the cellulose ether base material; wherein the cellulose ether base material has a weight average molecular weight, MW, of >800,000 Daltons.Type: ApplicationFiled: September 15, 2021Publication date: November 16, 2023Inventors: Saugata Nad, Severine Cauvin, Rahma Benbakoura, Flore Vandemeulebroucke, Serge Creutz, Lyndsay M. Leal, Emmett M. Partain, III, Randara Pulukkody, Nisaraporn Suthiwangcharoen, Michelle Sikarskie
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Patent number: 11788035Abstract: The present invention relates to a soap bar composition. It more particularly relates to a soap bar composition which comprises low amount of soap where high amount of water can be incorporated. This is achieved by including a selective polymer therein. The soap bars of the invention are easy to extrude and stamp.Type: GrantFiled: February 23, 2021Date of Patent: October 17, 2023Assignee: CONOPCO, INC.Inventors: Rodrigo Alves De Mattos, Gislene Splendore Bortolai, Nikhil J. Fernandes, Lyndsay M. Leal, Uwe Hagemann, Sergio Roberto Leopoldino, Yuriy Konstantinovich Yarovoy
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Publication number: 20230190622Abstract: A method for making a skin moisturizing formulation is provided, comprising: providing a dermatologically acceptable vehicle; selecting a skin moisturizing agent based on its ability to absorb and retain moisture, wherein the skin moisturizing agent selected is a cationic dextran polymer, comprising a dextran polymer functionalized with quaternary ammonium groups; providing the selected skin moisturizing agent; combining the dermatologically acceptable vehicle and the skin moisturizing agent to form a skin moisturizing formulation; wherein the skin moisturizing formulation contains 0.05 to 10 wt %, based on weight of the skin moisturizing formulation, of the skin moisturizing agent. Also provided is a method for moisturizing skin.Type: ApplicationFiled: June 18, 2021Publication date: June 22, 2023Inventors: Ying O'Connor, Emmett M. Partain, III, Lyndsay M. Leal, Jennifer P. Todd, Sokhomari S. Suon, Anne-Marie Vincent
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Publication number: 20230145339Abstract: A process for reducing hair damage upon exposure to heat is provided, including: providing aqueous carrier; selecting heat protectant, wherein heat protectant is selected for its ability to impart thermal protection to hair and to be modified carbohydrate polymer, comprising cellulose ether base material functionalized with trialkyl ammonium moieties, having Kjeldahl nitrogen content of 0.75 to 2.5 wt %; and hydrophobic substituents having 16 carbon atoms; providing the selected heat protectant; combining the cosmetically acceptable aqueous carrier and the heat protectant to form aqueous thermal protectant formulation; wherein the aqueous thermal protectant formulation contains 0.1 to 5 wt %, based on weight of the aqueous thermal protectant formulation, of the heat protectant; providing hair; applying the aqueous thermal protectant formulation to hair; providing heat generating hair care appliance; exposing hair to heat at 50 to 300° C. using the heat generating hair care appliance for 1 to 30 minutes.Type: ApplicationFiled: May 27, 2021Publication date: May 11, 2023Inventors: Nisaraporn Suthiwangcharoen, Lyndsay M. Leal, Emmett M. Partain, III, Shannon Golden, Justin Scherzer, Kenneth L. Kearns, Jr.
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Publication number: 20230117582Abstract: A hair care formulation is provided, comprising: a dermatologically acceptable vehicle; a dermatologically acceptable oil; and a deposition aid polymer, wherein the deposition aid polymer is a dextran polymer functionalized with an amine group; wherein the dextran polymer has a weight average molecular weight of 100,000 to 650,000 Daltons; and wherein the deposition aid polymer enhances deposition of the dermatologically acceptable oil from the hair care formulation onto mammalian hair.Type: ApplicationFiled: March 17, 2021Publication date: April 20, 2023Inventors: Lu Bai, Nikhil J. Fernandes, Emmett M. Partain, III, Lyndsay M. Leal, Binghe Gu, Jennifer P. Todd, Peilin Yang
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Publication number: 20230108965Abstract: A hair cleansing formulation is provided, comprising: a dermatologically acceptable vehicle; a dermatologically acceptable hair care cleansing surfactant; a dermatologically acceptable silicone; and a deposition aid polymer, wherein the deposition aid polymer is a tertiary amine functionalized dextran polymer, comprising a branched chain dextran polymer functionalized with tertiary amine groups; wherein the deposition aid polymer enhances deposition of the dermatologically acceptable silicone from the hair cleansing formulation onto mammalian hair.Type: ApplicationFiled: March 17, 2021Publication date: April 6, 2023Inventors: Lyndsay M. Leal, Nikhil J. Fernandes, Emmett M. Partain, III, Jennifer P. Todd, Michaeleen L. Pacholski
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Publication number: 20230096109Abstract: A skin cleansing formulation is provided, comprising: a dermatologically acceptable vehicle; a dermatologically acceptable oil; and a deposition aid polymer, wherein the deposition aid polymer is a cationic dextran polymer, comprising a dextran polymer functionalized with quaternary ammonium groups; wherein the deposition aid polymer enhances the deposition of the dermatologically acceptable oil from the skin cleansing formulation onto mammalian skin.Type: ApplicationFiled: March 17, 2021Publication date: March 30, 2023Inventors: Ying O'Connor, Nikhil J. Fernandes, Emmett M. Partain, III, Lyndsay M. Leal, Peilin Yang, Jennifer P. Todd
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Publication number: 20230094528Abstract: The present invention relates to a soap bar composition. It more particularly relates to a soap bar composition which comprises low amount of soap where high amount of water can be incorporated. This is achieved by including a selective polymer therein. The soap bars of the invention are easy to extrude and stamp.Type: ApplicationFiled: February 23, 2021Publication date: March 30, 2023Applicant: Conopco, Inc., d/b/a UNILEVERInventors: Rodrigo ALVES DE MATTOS, Gislene Splendore BORTOLAI, Nikhil J. FERNANDES, Lyndsay M. LEAL, Uwe HAGEMANN, Sergio Roberto LEOPOLDINO, Yuriy Konstantinovich YAROVOY
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Publication number: 20230100700Abstract: A fabric care composition is provided including water; a cleaning surfactant; a fabric softening silicone; and a deposition aid polymer, wherein the deposition aid polymer is a dextran polymer functionalized with quaternary ammonium moieties; wherein the deposition aid polymer enhances deposition of the fabric softening silicone from the fabric care composition onto a fabric.Type: ApplicationFiled: March 17, 2021Publication date: March 30, 2023Inventors: Randara Pulukkody, Emmett M. Partain, III, Lyndsay M. Leal, Jennifer P. Todd, Michael B. Clark, JR., Nikhil J. Fernandes
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Publication number: 20230088878Abstract: A hair care formulation is provided, comprising: a dermatologically acceptable vehicle; a dermatologically acceptable silicone; and a deposition aid polymer, wherein the deposition aid polymer is a branched chain cationic dextran polymer, comprising a dextran polymer functionalized with quaternary ammonium groups; wherein the dextran polymer has a weight average molecular weight of 100,000 to 650,000 Daltons; and wherein the deposition aid polymer enhances deposition of silicone from the hair care formulation onto mammalian hair.Type: ApplicationFiled: March 17, 2021Publication date: March 23, 2023Inventors: Nikhil J. Fernandes, Emmett M. Partain, III, Lyndsay M. Leal, Jennifer P. Todd, Michaeleen Pacholski
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Publication number: 20230093715Abstract: A hair cleanser is provided, comprising: a dermatologically acceptable vehicle; a dermatologically acceptable hair care cleansing surfactant; a dermatologically acceptable silicone; and a deposition aid polymer, wherein the deposition aid polymer is a dextran polymer crosslinked with a dextran crosslinking agent of formula (I) wherein X is a halogen; wherein each R1 is independently selected from a substituted or unsubstituted C1-6 alkyl group; wherein each R2 is independently selected from the group consisting of a C1-6 alkanediyl group; wherein Y is a divalent bridging group; and wherein the deposition aid polymer enhances deposition of the dermatologically acceptable silicone from the hair cleanser onto mammalian hair.Type: ApplicationFiled: March 17, 2021Publication date: March 23, 2023Inventors: Lyndsay M. Leal, Nikhil J. Fernandes, Emmett M. Partain, III, Jennifer P. Todd, Michaeleen Pacholski
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Publication number: 20220331216Abstract: An aqueous conditioner formulation for thermally styled hair is provided, including: an aqueous carrier; and a modified carbohydrate polymer, comprising a cellulose ether base material functionalized with (i) trialkyl ammonium moieties of formula (I) wherein R1 is independently a C1-7 alkyl group and wherein the modified carbohydrate polymer has a Kjeldahl nitrogen content, TKN, corrected for ash and volatiles, of 0.75 to 2.5 wt %; and (ii) hydrophobic substituents having 16 carbon atoms; wherein the modified carbohydrate polymer comprises 0.005 to 1.5 wt %, based on weight of the cellulose ether base material, of the hydrophobic substituents; wherein the hydrophobic substituents are randomly distributed across the backbone of the cellulose ether base material; wherein the cellulose ether base material has a weight average molecular weight, MW, of >1,000,000 Daltons; and wherein the modified carbohydrate polymer has <0.Type: ApplicationFiled: October 26, 2020Publication date: October 20, 2022Inventors: Nisaraporn Suthiwangcharoen, Lyndsay M. Leal, Emmett M. Partain, III, Nikhil J. Fernandes, Shannon Golden, Bethany K. Johnson
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Publication number: 20220160596Abstract: A hydrophilic silica/polymer blend is provided comprising (a) a hydrophilic silica powder; and (b) a thickening polymer powder, comprising (i) structural units of C4-8 alkyl (meth)acrylate monomer; (ii) structural units of (meth)acrylic acid monomer; (iii) structural units of (methoxy) poly(ethylene glycol) (meth)acrylate monomer; and (iv) structural units of multiethylenically unsaturated monomer; wherein the weight ratio of hydrophilic silica powder to thickening polymer powder in the hydrophilic silica/polymer blend is 1:9 to 9:1. Also provided are personal care compositions containing same and methods of using same.Type: ApplicationFiled: April 16, 2020Publication date: May 26, 2022Inventors: Luqing Qi, Liang Chen, Lu Bai, Lyndsay M. Leal, David M. Meunier, Yunshen Chen, Fanwen Zeng
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Publication number: 20220151908Abstract: A polymer oil blend is provided comprising (a) a cosmetically acceptable long chain hydrophobic ester oil, wherein the cosmetically acceptable long chain hydrophobic ester oil comprises aliphatic C>12-24 alkyl triglycerides; (b) a thickening polymer powder, wherein the thickening polymer powder comprises: (i) 96 to 99.9 wt %, based on weight of the thickening polymer powder, of structural units of C4-8 alkyl (meth)acrylate monomer; (ii) 0.1 to 2 wt %, based on weight of the thickening polymer powder, of structural units of (meth)acrylic acid monomer; (iii) 0 to 2 wt %, based on weight of the thickening polymer powder, of structural units of multi-ethylenically unsaturated crosslinking monomer; and (c) a silica powder; and wherein the weight ratio of silica powder/thickening polymer powder is ?0.25. Also provided are personal care compositions containing same and methods of using same.Type: ApplicationFiled: April 16, 2020Publication date: May 19, 2022Inventors: Luqing Qi, Liang Chen, Lu Bai, Lyndsay M. Leal, David M. Meunier, Yunshen Chen, Fanwen Zeng