US 11,858,885 B2
Cellulosic complex and applications thereof
Syed Gulam Dastager, Pune (IN); and Madhukar Shyam Said, Pune (IN)
Assigned to COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH, New Delhi (IN)
Appl. No. 17/441,467
Filed by Council of Scientific & Industrial Research, New Delhi (IN)
PCT Filed Mar. 24, 2020, PCT No. PCT/IN2020/050274
§ 371(c)(1), (2) Date Sep. 21, 2021,
PCT Pub. No. WO2020/202179, PCT Pub. Date Oct. 8, 2020.
Claims priority of application No. 201911012428 (IN), filed on Mar. 29, 2019.
Prior Publication US 2022/0153669 A1, May 19, 2022
Int. Cl. C07C 41/22 (2006.01); C08B 15/00 (2006.01); C08B 31/00 (2006.01); C08B 37/00 (2006.01)
CPC C07C 41/22 (2013.01) [C08B 15/00 (2013.01); C08B 31/00 (2013.01); C08B 37/0045 (2013.01)] 8 Claims
 
1. A non-hygroscopic, recyclable, and thermally stable complex, the complex comprising a polysaccharide support and tetra-n-butyl ammonium fluoride complexed to the polysaccharide support, wherein the w/w ratio of the polysaccharide support to the tetra-n-butyl ammonium fluoride in the complex is from 1:0.3 to 1:6, and wherein the polysaccharide support of the fluoride complex is recyclable as a fluorinating agent.