US 11,773,533 B2
Composition for use in the finishing, preservation, restoration of manufactures
Armandodoriano Bianco, Rome (IT); Ilaria Serafini, Rome (IT); Giuseppe Cavallaro, Palermo (IT); and Giuseppe Lazzara, Palermo (IT)
Assigned to UNIVERSITÀ DEGLI STUDI DI ROMA “LA SAPIENZA”, Rome (IT)
Appl. No. 16/769,875
Filed by UNIVERSITÀ DEGLI STUDI DI ROMA “LA SAPIENZA”, Rome (IT)
PCT Filed Nov. 23, 2018, PCT No. PCT/EP2018/082336
§ 371(c)(1), (2) Date Jun. 4, 2020,
PCT Pub. No. WO2019/110325, PCT Pub. Date Jun. 13, 2019.
Claims priority of application No. 102017000140041 (IT), filed on Dec. 5, 2017.
Prior Publication US 2021/0108362 A1, Apr. 15, 2021
Int. Cl. D21H 23/66 (2006.01); D21H 25/02 (2006.01); D06M 15/03 (2006.01); D06M 15/15 (2006.01); D06M 23/00 (2006.01); D21H 25/18 (2006.01)
CPC D06M 15/03 (2013.01) [D06M 15/15 (2013.01); D06M 23/00 (2013.01); D21H 25/02 (2013.01); D21H 25/18 (2013.01)] 15 Claims
OG exemplary drawing
 
1. Aqueous composition comprising chitosan, fibroin nanoparticles and an acid agent wherein the aqueous composition has a pH equal to or lower than 6, wherein the aqueous composition has a viscosity equal to or lower than 3.5 kg×m−1×s−1 measured at 25.0±0.1° C., and wherein the fibroin nanoparticles have a diameter equal to or lower than 140 nm.