Patents by Inventor Nikolay Christov

Nikolay Christov 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).

  • Patent number: 10717947
    Abstract: The present invention provides a solid composition comprising (a) a quaternary ammonium compound and (b) between 9 wt % and 77 wt % of a polysaccharide based on the total weight of the solid composition. The solid composition showed excellent stability. The present invention also provides a process for preparing the solid composition and a liquid composition comprising said solid composition, and methods for conditioning a fabric by using the solid composition and the liquid composition as well.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: July 21, 2020
    Assignee: Rhodia Operations
    Inventors: Hai Zhou Zhang, Nikolay Christov, Da Wei Jin, Lin He
  • Publication number: 20190300822
    Abstract: Disclosed is a composition comprising: (a) an anionic surfactant in an amount of from 0.01 to 0.55 g/L; (b) a quaternary ammonium compound in an amount of from 0.005 to 0.45 g/L; (c) a cationic polysaccharide in an amount of from 0.0005 to 0.1 g/L; (d) a non-ionic polysaccharide in an amount of from 0.0005 to 0.1 g/L; and (e) a liquid carrier. Also disclosed is a method of use of the composition.
    Type: Application
    Filed: December 15, 2016
    Publication date: October 3, 2019
    Inventors: Hai Zhou ZHANG, Lin HE, Da Wei JIN, Nikolay CHRISTOV, Galder CRISTOBAL
  • Patent number: 10351805
    Abstract: The present invention relates to a composition, notably a fabric conditioning composition, comprising at least: a quaternary ammonium compound, two different cationic polysaccharides; and a non-ionic polysaccharide. The composition has excellent conditioning performance combined with good stability.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: July 16, 2019
    Assignee: RHODIA OPERATIONS
    Inventors: Hai Zhou Zhang, Lin He, Da Wei Jin, Nikolay Christov
  • Patent number: 10227548
    Abstract: Provided is a composition, notably a fabric conditioning composition, comprising (a) a quaternary ammonium compound; (b) a cationic polysaccharide; (c) a first non-ionic polysaccharide; and (d) a second non-ionic polysaccharide, wherein the second non-ionic polysaccharide is different from the first non-ionic polysaccharide and the second non-ionic polysaccharide has a Molar Substitution (MS) in the range of 0.2 to 1.8.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: March 12, 2019
    Inventors: Hai Zhou Zhang, Lin He, Da Wei Jin, Nikolay Christov, Galder Cristobal
  • Publication number: 20190010424
    Abstract: The present invention relates to a composition, notably a fabric conditioning composition, comprising at least: a quaternary ammonium compound, two different cationic polysaccharides; and a non-ionic polysaccharide. The composition has excellent conditioning performance combined with good stability.
    Type: Application
    Filed: December 14, 2016
    Publication date: January 10, 2019
    Inventors: Hai Zhou ZHANG, Lin HE, Da Wei JIN, Nikolay CHRISTOV
  • Publication number: 20180371361
    Abstract: Provided is a composition, notably a fabric conditioning composition, comprising (a) a quaternary ammonium compound; (b) a cationic polysaccharide; (c) a first non-ionic polysaccharide; and (d) a second non-ionic polysaccharide, wherein the second non-ionic polysaccharide is different from the first non-ionic polysaccharide and the second non-ionic polysaccharide has a Molar Substitution (MS) in the range of 0.2 to 1.8.
    Type: Application
    Filed: December 15, 2016
    Publication date: December 27, 2018
    Inventors: Hai Zhou ZHANG, Lin HE, Da Wei JIN, Nikolay CHRISTOV, Galder CRISTOBAL
  • Publication number: 20180371366
    Abstract: Provided is a method for enhancing the stability of a composition, notably a fabric conditioning composition, by adding to the composition: (a) a quaternary ammonium compound, (b) a cationic polysaccharide, (c) a non-ionic polysaccharide, and (d) a liquid carrier. The composition prepared by the method exhibits excellent stability.
    Type: Application
    Filed: December 12, 2016
    Publication date: December 27, 2018
    Inventors: Haizhou ZHANG, Lin HE, Da Wei JIN, Nikolay CHRISTOV, Galder CRISTOBAL
  • Patent number: 10155918
    Abstract: The present invention provides a solid composition comprising a polysaccharide and a hydrophobic compound having a melting point of between 30° C. and 90° C. The solid composition may further comprise a quaternary ammonium compound, wherein the weight ratio of the polysaccharide and the hydrophobic compound is between 1:50 and 50:1. Preferably, the solid composition is substantially free or completely free of water. The solid composition shows excellent stability at a temperature up to 45° C. The present invention also provides a process for preparing the solid composition and a liquid composition comprising said solid composition, and a method for conditioning a fabric by using said solid composition or said liquid composition as well.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: December 18, 2018
    Assignee: Rhodia Operations
    Inventors: Hai Zhou Zhang, Nikolay Christov, Da Wei Jin, Lin He
  • Publication number: 20180079993
    Abstract: The present invention relates to composition, in particular, a fabric conditioning composition, comprising at least a quaternary ammonium compound, a cationic polysaccharide, a nonionic polymer. The composition has excellent conditioning performance. The invention also relates the processes for preparing the said composition.
    Type: Application
    Filed: February 25, 2016
    Publication date: March 22, 2018
    Inventors: Hai Zhou ZHANG, Nikolay CHRISTOV, Da Wei JIN, Lin HE
  • Publication number: 20180010070
    Abstract: The present invention relates to a composition comprising: (a) a bis-(2-hydroxypropyl)-dimethylammonium methyl-sulphate fatty acid ester having an average chain length of the fatty acid moieties of from 12 to 30 carbon atoms; (b) a cationic poly saccharide; and (c) a nonionic polysaccharide. The present invention also relates to the method of use of the composition.
    Type: Application
    Filed: January 27, 2016
    Publication date: January 11, 2018
    Inventors: Hai Zhou ZHANG, Nikolay CHRISTOV, Da Wei JIN, Lin HE
  • Publication number: 20180002639
    Abstract: The present invention relates to a method for reducing greying of a fabric when using a composition comprising a quaternary ammonium compound, for example, a fabric conditioning composition comprising a quaternary ammonium compound. The invention involves the use of a nonionic polysaccharide and reducing the amount of quaternary ammonium compound used.
    Type: Application
    Filed: January 15, 2016
    Publication date: January 4, 2018
    Inventors: Hai Zhou ZHANG, Nikolay CHRISTOV, Da Wei JIN, Lin HE
  • Publication number: 20170349859
    Abstract: The present invention provides a solid composition comprising (a) a quaternary ammonium compound and (b) between 9 wt % and 77 wt % of a polysaccharide based on the total weight of the solid composition. The solid composition showed excellent stability. The present invention also provides a process for preparing the solid composition and a liquid composition comprising said solid composition, and methods for conditioning a fabric by using the solid composition and the liquid composition as well.
    Type: Application
    Filed: December 22, 2015
    Publication date: December 7, 2017
    Inventors: Hai Zhou ZHANG, Nikolay CHRISTOV, Da Wei JIN, Lin HE
  • Publication number: 20170342346
    Abstract: The present invention provides a solid composition comprising a polysaccharide and a hydrophobic compound having a melting point of between 30° C. and 90° C. The solid composition may further comprise a quaternary ammonium compound, wherein the weight ratio of the polysaccharide and the hydrophobic compound is between 1:50 and 50:1. Preferably, the solid composition is substantially free or completely free of water. The solid composition shows excellent stability at a temperature up to 45° C. The present invention also provides a process for preparing the solid composition and a liquid composition comprising said solid composition, and a method for conditioning a fabric by using said solid composition or said liquid composition as well.
    Type: Application
    Filed: December 22, 2014
    Publication date: November 30, 2017
    Inventors: Hai Zhou ZHANG, Nikolay CHRISTOV, Da Wei JIN, Lin HE
  • Publication number: 20170137750
    Abstract: The present invention relates to method for preparing composition containing at least a quaternary ammonium compound, a cationic polysaccharide, a fragrance material or perfume, a nonionic surfactant, and optionally a nonionic polysaccharide. The method notably comprises a step of preparing a premix of the fragrance material or perfume and the nonionic surfactant. Said composition may notably be used for fabric conditioning.
    Type: Application
    Filed: June 18, 2015
    Publication date: May 18, 2017
    Inventors: Hai Zhou ZHANG, Nikolay CHRISTOV, Da Wei JIN, Lin HE
  • Publication number: 20170130165
    Abstract: The present invention relates to a method for enhancing fragrance or perfume longevity of a composition by adding to the composition (a) a quaternary ammonium compound; (b) a cationic polysaccharide; (c) a nonionic polysaccharide; and (d) a fragrance material or perfume. In particular, the quaternary ammonium compound is a biodegradable quaternary ammonium compound. The composition has improved perfume longevity.
    Type: Application
    Filed: January 15, 2015
    Publication date: May 11, 2017
    Inventors: Hai Zhou ZHANG, Nikolay CHRISTOV, Da Wei JIN
  • Publication number: 20170130164
    Abstract: The present invention relates to a composition, in particular, a fabric conditioning composition, comprising at least a quaternary ammonium compound, a cationic polysaccharide, a nonionic polysaccharide and a fragrance material or perfume. In particular, the quaternary ammonium compound is a biodegradable quaternary ammonium compound. The composition has excellent softening performance and improved perfume longevity.
    Type: Application
    Filed: January 15, 2015
    Publication date: May 11, 2017
    Inventors: Hai Zhou ZHANG, Nikolay CHRISTOV, Da Wei JIN
  • Publication number: 20170121639
    Abstract: The present invention relates to a composition, in particular, a fabric conditioning composition, comprising at least a quaternary ammonium compound, a cationic polysaccharide and a nonionic polysaccharide. In particular, the quaternary ammonium compound is a biodegradable quaternary ammonium compound.
    Type: Application
    Filed: June 18, 2014
    Publication date: May 4, 2017
    Inventors: Hai Zhou ZHANG, Nikolay CHRISTOV, Da Wei JIN
  • Publication number: 20170121640
    Abstract: The present invention relates to a method for conditioning a fabric comprising the step of contacting the fabric with an aqueous medium comprising a composition, wherein the composition comprises: (a) a quaternary ammonium compound; (b) a cationic polysaccharide; and (c) a nonionic polysaccharide. In particular, the quaternary ammonium compound is a biodegradable quaternary ammonium compound. The composition has excellent softening performance and improved perfume longevity. The present invention also relates to use of said composition for conditioning a fabric.
    Type: Application
    Filed: January 15, 2015
    Publication date: May 4, 2017
    Inventors: Hai Zhou ZHANG, Nikolay CHRISTOV, Da Wei JIN
  • Publication number: 20160340610
    Abstract: The present invention relates to a method for enhancing the stability of a composition comprising the steps of adding in the composition at least a fabric conditioning compound and a cationic polysaccharide. The resulting composition has excellent stability and long storage life, as well as, superior conditioning performance.
    Type: Application
    Filed: January 16, 2015
    Publication date: November 24, 2016
    Inventors: Hai Zhou ZHANG, Lin HE, Nikolay CHRISTOV
  • Publication number: 20150245986
    Abstract: The present invention concerns the use of a combination of an amphoteric surfactant and a cationic polymer derivative of polysaccharide to increase the foam volume and foam quality of soap containing compositions. Said advantage may be used to produce cleansing products like cleansing liquid, paste, gel or foam, body shampoo or hair shampoo.
    Type: Application
    Filed: September 26, 2013
    Publication date: September 3, 2015
    Applicant: RHODIA OPERATIONS
    Inventors: Nikolay Christov, Tobias Futterer