Patents by Inventor Patcharin Samuthsen

Patcharin Samuthsen 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).

  • Glycidyl amine epoxy resins based on AMES negative amines
    Patent number: 11548976
    Abstract: A glycidyl amine epoxy resin(s) and a process for production of glycidyl amine epoxy resin(s) are disclosed. The glycidyl amine epoxy resin(s) is/are free from Bisphenol A (BPA) and Bisphenol F (BPF) and are based on AMES negative amine precursors.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: January 10, 2023
    Assignee: Aditya Birla Chemicals (Thailand) Limited
    Inventors: Pradip Kumar Dubey, Alok Khullar, Daniel Suckley, Thipa Naiyawat, Nok Noiphom, Dapawan Kunwong, Patcharin Samuthsen, Worakan Chamongkolpradit, Suphansa Noghan, Nalintip Changsarn
  • GLYCIDYL AMINE EPOXY RESINS BASED ON AMES NEGATIVE AMINES
    Publication number: 20200239624
    Abstract: A glycidyl amine epoxy resin(s) and a process for production of glycidyl amine epoxy resin(s) are disclosed. The glycidyl amine epoxy resin(s) is/are free from Bisphenol A (BPA) and Bisphenol F (BPF) and are based on AMES negative amine precursors.
    Type: Application
    Filed: October 17, 2018
    Publication date: July 30, 2020
    Applicant: ADITYA BIRLA CHEMICALS (THAILAND) LIMITED
    Inventors: Pradip Kumar Dubey, Alok Khullar, Daniel Suckley, Thipa Naiyawat, Nok Noiphom, Dapawan Kunwong, Patcharin Samuthsen, Worakan Chamongkolpradit, Suphansa Noghan, Nalintip Changsarn
  • Manufacturing process for dihydroxydiphenylmethane with high selectivity for 2,4?-dihydroxydiphenylmethane
    Patent number: 10683250
    Abstract: The invention relates to an improved manufacturing process for the preparation of high 2,4?-dihydroxydiphenylmethane, by a process involving reaction of phenol and formaldehyde, in the presence of an inorganic polyprotic acid. According to this process, the reaction conditions are selected to favour a high yield of dihydroxydiphenylmethane, with a relatively high concentration of the 2,4?-isomer, by using a relatively low molar excess of phenol than conventional methods.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: June 16, 2020
    Assignee: ADITYA BIRLA CHEMICALS (THAILAND) LTD.
    Inventors: Kumar Dubey Pradip, Alok Khullar, Thipa Naiyawat, Kamonsun Visatsingh, Patcharin Samuthsen, Pankaj Mathure
  • Energy efficient manufacturing process for preparing N,O-triglycidyl aminophenols
    Patent number: 10023548
    Abstract: The invention relates to an improved process for making monomeric triglycidyl compounds, wherein the triglycidyl compounds include N, O-triglycidyl compounds containing at least one primary aromatic amine and one phenolic functional group attached to the same or a different aromatic ring. The methods of the present invention result in the production of N, O-triglycidyl compounds, such as those of formula I and II. The improved process is energy efficient, environment friendly, and results in increased yields of product. The methods of the present invention can be performed in the absence of protic organic co-solvents during the reaction of an epihalohydrin with an aminophenol, such as compounds of formula II and IV, which provides an intermediate halohydrin compound. The methods of the present invention may also be performed in the absence of a phase transfer catalyst.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: July 17, 2018
    Assignee: Aditya Birla Chemicals (Thailand) Ltd.
    Inventors: Kumar Dubey Pradip, Alok Khullar, Thipa Nayawat, Kamonsun Visatsingh, Patcharin Samuthsen, Prashant Samant
  • ENERGY EFFICIENT MANUFACTURING PROCESS FOR PREPARING N,O-TRIGLYCIDYL AMINOPHENOLS
    Publication number: 20170152236
    Abstract: The invention relates to an improved process for making monomeric triglycidyl compounds, wherein the triglycidyl compounds include N, O-triglycidyl compounds containing at least one primary aromatic amine and one phenolic functional group attached to the same or a different aromatic ring. The methods of the present invention result in the production of N, O-triglycidyl compounds, such as those of formula I and II. The improved process is energy efficient, environment friendly, and results in increased yields of product. The methods of the present invention can be performed in the absence of protic organic co-solvents during the reaction of an epihalohydrin with an aminophenol, such as compounds of formula II and IV, which provides an intermediate halohydrin compound. The methods of the present invention may also be performed in the absence of a phase transfer catalyst.
    Type: Application
    Filed: May 15, 2014
    Publication date: June 1, 2017
    Applicant: Aditya Birla Chemicals (Thailand) Ltd.
    Inventors: Kumar Dubey Pradip, Alok Khullar, Thipa Nayawat, Kamonsun Visatsingh, Patcharin Samuthsen, Prashant Samant
  • IMPROVED MANUFACTURING PROCESS FOR DIHYDROXYDIPHENYLMETHANE WITH HIGH SELECTIVITY FOR 2,4'- DIHYDROXYDIPHENYLMETHANE
    Publication number: 20160229775
    Abstract: The invention relates to an improved manufacturing process for the preparation of high 2, 4?-dihydroxydiphenylmethane, by a process involving reaction of phenol and formaldehyde, in the presence of an inorganic polyprotic acid. According to this process, the reaction conditions are selected to favour a high yield of dihydroxydiphenylmethane, with a relatively high concentration of the 2,4?-isomer, by using a relatively low molar excess of phenol than conventional methods.
    Type: Application
    Filed: September 20, 2013
    Publication date: August 11, 2016
    Applicant: Aditya Birla Chemicals (Thailand) Ltd.
    Inventors: Kumar Dubey Pradip, Alok Khullar, Thipa Naiyawat, Kamonsun Visatsingh, Patcharin Samuthsen, Pankaj Mathure