Patents by Inventor Sachchida Singh

Sachchida Singh 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: 12252578
    Abstract: A polyurethane foam composition comprising: (a) an isocyanate compound; (b) one or more isocyanate reactive compounds at least one of the isocyanate reactive compounds comprises an aromatic polyester polyol compound comprising an imide moiety wherein the aromatic polyester polyol is the reaction product of: (i) a cyclic anhydride compound; (ii) a phthalic acid based compound, (iii) a primary amine compound, (iv) an aliphatic diol compound; (v) optionally, a high functionality, low molecular weight polyether polyol compound; (vi) optionally, a hydrophobic compound; and wherein the weight ratio of Component (i) to Component (ii) is from 1:24 to 24:1; and wherein the aromatic polyester polyol is liquid at 25° C. and comprises a hydroxy value ranging from about 30 to about 600; and (c) a blowing agent.
    Type: Grant
    Filed: August 5, 2020
    Date of Patent: March 18, 2025
    Inventors: Kai Xi, David J. Shieh, Lifeng Wu, Sachchida Singh
  • Publication number: 20240270896
    Abstract: A polyurethane insulation foam composition is disclosed herein. The polyurethane insulation foam comprises: (i) an aromatic isocyanate compound; (ii) an isocyanate reactive compound; (iii) water; (iv) a tertiary amine compound; (v) a hydrophilic carboxylic acid compound; (vi) a halogenated olefin compound; (vii) a stabilizing compound, and (vii) optionally, other additives.
    Type: Application
    Filed: March 8, 2024
    Publication date: August 15, 2024
    Inventors: Yangjun Cai, Lifeng Wu, Sachchida Singh, Yun-Shan Liu
  • Patent number: 11958935
    Abstract: A polyurethane insulation foam composition is disclosed herein. The polyurethane insulation foam comprises: (i) an aromatic isocyanate compound; (ii) an isocyanate reactive compound; (iii) water; (iv) a tertiary amine compound; (v) a hydrophilic carboxylic acid compound; (vi) a halogenated olefin compound; (vii) a stabilizing compound, and (vii) optionally, other additives.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: April 16, 2024
    Inventors: Yangjun Cai, Lifeng Wu, Sachchida Singh, Yun-Shan Liu
  • Publication number: 20240002580
    Abstract: A method for making an aromatic polyester polyol compound, wherein the method comprises reacting at esterification reaction conditions a reactive mixture comprising the following components: (i) an aromatic acid compound; (ii) an aliphatic diol compound; (iii) a dialkylol alkanoic acid compound; (iv) optionally, a hydrophobic compound, a polyhydroxy compound comprising at least three hydroxyl groups, or combinations thereof, and wherein the aromatic polyester polyol compound is liquid at 25° C. and has a hydroxy value ranging from about 30 to about 600.
    Type: Application
    Filed: December 3, 2021
    Publication date: January 4, 2024
    Inventors: Kai XI, Paul MACKEY, Lifeng WU, Sachchida SINGH
  • Publication number: 20240002578
    Abstract: A polyurethane foam composition comprising: (a) an isocyanate compound; (b) one or more isocyanate reactive compounds and wherein at least one of the isocyanate reactive compounds comprises an aromatic polyester polyol compound that is the reaction product of: (i) an aromatic acid compound; (ii) an aliphatic diol compound; (iii) a dialkylol alkanoic acid compound; and (iv) optionally, a polyhydroxy compound comprising at least three hydroxyl groups, a hydrophobic compound, or combinations thereof; and wherein the aromatic polyester polyol compound is liquid at 25° C. and has a hydroxy value ranging from 30 to 600; and (c) a blowing agent.
    Type: Application
    Filed: December 3, 2021
    Publication date: January 4, 2024
    Inventors: Kai XI, Paul MACKEY, Lifeng WU, Sachchida SINGH
  • Publication number: 20220315705
    Abstract: A method of forming an aromatic polyester polyol compound comprising an imide moiety, wherein the method comprises reacting: (i) a cyclic anhydride compound; (ii) a phthalic acid based compound; (iii) a primary amine compound; and (iv) an aliphatic diol compound.
    Type: Application
    Filed: August 5, 2020
    Publication date: October 6, 2022
    Inventors: Kai Xi, David J. Shieh, Lifeng Wu, Sachchida Singh
  • Publication number: 20220275144
    Abstract: A polyurethane foam composition comprising: (a) an isocyanate compound; (b) one or more isocyanate reactive compounds at least one of the isocyanate reactive compounds comprises an aromatic polyester polyol compound comprising an imide moiety wherein the aromatic polyester polyol is the reaction product of: (i) a cyclic anhydride compound; (ii) a phthalic acid based compound, (iii) a primary amine compound, (iv) an aliphatic diol compound; (v) optionally, a high functionality, low molecular weight polyether polyol compound; (vi) optionally, a hydrophobic compound; and wherein the weight ratio of Component (i) to Component (ii) is from 1:24 to 24:1; and wherein the aromatic polyester polyol is liquid at 25° C. and comprises a hydroxy value ranging from about 30 to about 600; and (c) a blowing agent.
    Type: Application
    Filed: August 5, 2020
    Publication date: September 1, 2022
    Inventors: Kai Xi, David J. Shieh, Lifeng Wu, Sachchida Singh
  • Publication number: 20210340308
    Abstract: A polyurethane insulation foam composition is disclosed herein. The polyurethane insulation foam comprises: (i) an aromatic isocyanate compound; (ii) an isocyanate reactive compound; (iii) water; (iv) a tertiary amine compound; (v) a hydrophilic carboxylic acid compound; (vi) a halogenated olefin compound; (vii) a stabilizing compound, and (vii) optionally, other additives.
    Type: Application
    Filed: August 21, 2019
    Publication date: November 4, 2021
    Inventors: Yangjun CAI, Lifeng WU, Sachchida SINGH, Yun-Shan LIU
  • Publication number: 20060283548
    Abstract: Polyisocyanate-prepolymer based adhesives for the preparation of adhesive bonded lignocellulosic composite articles are provided. The adhesives comprise the reaction products of a polyisocyanate composition, an amine initiated polyahl, and a hydrocarbon backbone polyahl, wherein the adhesive composition contains free organically bound isocyanate groups. Further provided is a process for using the adhesives and lignocellulosic composite articles produced therewith.
    Type: Application
    Filed: May 11, 2006
    Publication date: December 21, 2006
    Applicant: Huntsman International LLC
    Inventors: Sachchida Singh, Christopher Moriarty, Herbert Gillis, Anthony Parker
  • Publication number: 20050027044
    Abstract: This invention concerns a process for the manufacture of a press molded material, comprising applying diisocyanate, polyol, and catalyst to a wood material, wherein the catalyst is a tertiary amine-carboxylic acid salt that is blocked at room temperature and becomes unblocked at an elevated temperature, and heating the resulting mixture to a temperature effective to unblock the salt to produce unblocked tertiary amine. The press molded material can be an orientated strand board (OSB).
    Type: Application
    Filed: May 3, 2004
    Publication date: February 3, 2005
    Inventors: Christopher Moriarty, Robert Grigsby, Robert Zimmerman, Sachchida Singh
  • Patent number: 6590005
    Abstract: Rigid polyurethane foams are prepared from an isocyanate composition containing diphenylmethane diisocyanate, three ring oligomers of polyphenylene polymethylene polyisocyanate and higher homologues of polyphenylene polymethylene polyisocyanate.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: July 8, 2003
    Assignee: Huntsman International LLC
    Inventors: Sachchida Singh, Steven Burns
  • Publication number: 20030078310
    Abstract: Rigid polyurethane foams are prepared from an isocyanate composition containing diphenylmethane diisocyanate, three ring oligomers of polyphenylene polymethylene polyisocyanate and higher homologues of polyphenylene polymethylene polyisocyanate.
    Type: Application
    Filed: July 24, 2002
    Publication date: April 24, 2003
    Inventors: Sachchida Singh, Steven Burns
  • Patent number: 6455601
    Abstract: Rigid polyurethane foams are prepared from an isocyanate composition containing diphenylmethane diisocyanate, three ring oligomers of polyphenylene polymethylene polyisocyanate and higher homologues of polyphenylene polymethylene polyisocyanate.
    Type: Grant
    Filed: May 24, 2001
    Date of Patent: September 24, 2002
    Assignee: Huntsman International LLC
    Inventors: Sachchida Singh, Steven Burns
  • Publication number: 20020022674
    Abstract: Rigid polyurethane foams are prepared from an isocyanate composition containing diphenylmethane diisocyanate, three ring oligomers of polyphenylene polymethylene polyisocyanate and higher homologues of polyphenylene polymethylene polyisocyanate.
    Type: Application
    Filed: May 24, 2001
    Publication date: February 21, 2002
    Inventors: Sachchida Singh, Steven Burns
  • Patent number: 6248802
    Abstract: Rigid polyurethane foams are prepared from an isocyanate composition containing diphenylmethane diisocyanate, three ring oligomers of polyphenylene polymethylene polyisocyanate and higher homologues of polyphenylene polymethylene polyisocyanate.
    Type: Grant
    Filed: June 11, 1998
    Date of Patent: June 19, 2001
    Inventors: Sachchida Singh, Steven Burns