	US 11,920,006 B2
	Compositions comprising cyclic alkylene carbonates and polyamides, processes for their preparation and their uses
Massimo Broccatelli, Bastia Umbra (IT)
Assigned to REDANTEA S.R.L., Milan (IT)
Appl. No. 17/434,503
Filed by REDANTEA S.R.L., Milan (IT)
PCT Filed Jul. 10, 2019, PCT No. PCT/IB2019/055874 § 371(c)(1), (2) Date Aug. 27, 2021, PCT Pub. No. WO2021/005402, PCT Pub. Date Jan. 14, 2021.
Prior Publication US 2022/0127423 A1, Apr. 28, 2022
Int. Cl. C08J 3/09 (2006.01); C08G 69/46 (2006.01); C08J 3/12 (2006.01); C08K 5/1565 (2006.01); C08K 5/3472 (2006.01); C08L 67/02 (2006.01); C08L 69/00 (2006.01); C08L 77/00 (2006.01)

CPC C08J 3/095 (2013.01) [C08G 69/46 (2013.01); C08J 3/12 (2013.01); C08K 5/1565 (2013.01); C08K 5/3472 (2013.01); C08L 67/02 (2013.01); C08L 69/00 (2013.01); C08L 77/00 (2013.01); C08J 2377/00 (2013.01); C08J 2467/02 (2013.01); C08J 2469/00 (2013.01); Y02W 30/62 (2015.05)]

14 Claims

1. A process for preparing a solid complex comprising at least one cyclic alkylene carbonate and at least one polyamide, wherein the polyamide/alkylene carbonate weight ratio ranges from 0.2 to 1, said method comprising

a. mixing at least one polyamide-based material, with at least one alkylene carbonate preheated at a temperature ranging from 160° C. to the boiling point of said at least one alkylene carbonate;

b. optionally filtering the fluid mixture from step (a), at a temperature between 250° C. and 200° C.;

c. optionally adding one or more other components; and

d. cooling down the fluid mixture thus obtained.