MUMBAI, India, May 30 -- Intellectual Property India has published a patent application (202341065589 A) filed by Sangeetha Arumugam; Sneha Subramanian; and Tamilselvi Saravanakumar, Sathyamangalam, Tamil Nadu, on Sept. 29, 2023, for 'biodegradable superabsorbent biopolymer.'
Inventor(s) include Sangeetha Arumugam; Sneha Subramanian; and Tamilselvi Saravanakumar.
The application for the patent was published on May 30, under issue no. 22/2025.
According to the abstract released by the Intellectual Property India: "A superabsorbent polymer (SAP) (also called slush powder) is a water-absorbing three dimensional network polymer that can absorb and retain extremely large amounts of a liquid relative to its own mass. They are widely used in agriculture/horticulture for controlled release of water, fertilizer and other plant nutrients, and in the diaper industry . They are also used in napkins, hospital wipes etc. The majority of the commercial SAP available in the market is non-biodegradable. The present work involves the synthesis of biodegradable SAP(Bio-SAP) for the above said applications taking natural polymer guar gum as the main raw material. In the project, Bio-SAPs were made using guar gum, agar-agar and Sodium Alginate via radical grafting of acrylic acid in the presence of a crosslinker. Since the synthesized SAPs are from natural polymers; they are biodegradable and eco-friendly. The synthesized SAPs absorb water to the extent of 100-200g per gram and may be used in agriculture, the diaper industry and the textile industry. Biodegradable superabsorbent biopolymer (Bio- SAP) is used as a Hydrogel in the Textile industries. SAP is a water-absorbing polymer that can absorb and retain extremely large amounts of a liquid relative to its own mass. Bio-SAP are hydrophilic materials as.they have the ability to absorb and retain a huge proportion of water."
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