Patents by Inventor Sandeep Nikam

Sandeep Nikam 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).

  • ONE STEP DYEING PROCESS OF A POLYESTER/NATURAL FIBER BLENDED FABRIC
    Publication number: 20240368832
    Abstract: The current invention provides methods provides a novel process to dye polyester/natural fiber blends in an all in one step dyeing process. This all in one step dyeing process is enabled by pre-treatment of the fabric using one or more synthetic cationizing agents. The all in one dyeing is then able to be carried out at a lower temperature and a neutral pH, using a combination of disperse and reactive dyes.
    Type: Application
    Filed: December 13, 2022
    Publication date: November 7, 2024
    Inventors: Sandeep Nikam, Siddhartha Ghosal, Amit Barun
  • PAD-STEAM CATIONIZATION OF TEXTILES
    Publication number: 20230089849
    Abstract: Described are methods and systems for cationizing and dyeing a natural fiber-containing textile. The method includes a step of steam treating a textile padded with a base and cationizing agent in a defined temperature range (greater than 100° C. to less than 110° C.) and for a defined time period (1 min to 10 min). The cationizing agent in the presence of the base is capable of generating two epoxide groups. The cationization step in the presence of steam using the halogenated catonization agent of the invention facilitates improved dyeing.
    Type: Application
    Filed: February 2, 2021
    Publication date: March 23, 2023
    Inventors: Sandeep Nikam, Laura Havens, Ling Zhang-watson
  • PAD-DRY CATIONIZATION OF TEXTILES
    Publication number: 20230071562
    Abstract: Described are methods and systems for cationizing and dyeing a natural fiber-containing textile, which uses a mono- or di-quaternized cationizing agent. The method includes a step of heating the textile to a temperature in the range of 90° C. to less than 110° C. for a period of time in the range of 1 min to 10 min to react the cationizing agent with the textile. The cationization step in the presence of heat using the halogenated cationization agent of the invention facilitates improved dyeing.
    Type: Application
    Filed: February 2, 2021
    Publication date: March 9, 2023
    Inventors: Sandeep NIKAM, Laura HAVENS, Ling ZHANG-WATSON
  • Textile treatment compositions including quternary bis-imidazoline compounds derived from linear tetramines useful to improve moisture management and provide antimicrobial protection
    Patent number: 10428454
    Abstract: The present invention provides strategies to improve the moisture management properties of textiles while retaining high comfort levels. The treatments also help to protect textiles against microbial growth. The treatment strategies of the present invention are based at least in part on the use of cationic bis-imidazoline(s) and their salts. Quaternized bis-imidazoline cations and their salts are particularly preferred.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: October 1, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Sandeep Nikam, Ritesh Gulabani, Yogaraj Nabar, Prashant Tatake
  • TEXTILE TREATMENT COMPOSITIONS INCLUDING QUTERNARY BIS-IMIDAZOLINE COMPOUNDS DERIVED FROM LINEAR TETRAMINES USEFUL TO IMPROVE MOISTURE MANAGEMENT AND PROVIDE ANTIMICROBIAL PROTECTION
    Publication number: 20160319479
    Abstract: The present invention provides strategies to improve the moisture management properties of textiles while retaining high comfort levels. The treatments also help to protect textiles against microbial growth. The treatment strategies of the present invention are based at least in part on the use of cationic bis-imidazoline(s) and their salts. Quaternized bis-imidazoline cations and their salts are particularly preferred.
    Type: Application
    Filed: December 12, 2014
    Publication date: November 3, 2016
    Applicant: Dow Global Technologies LLC
    Inventors: Sandeep Nikam, Ritesh Gulabani, Yogaraj Nabar