	US 12,312,515 B2
	Sprayable hot melt adhesive in the form of pellets for manufacturing disposable hygiene articles
Cristina Isabel Fernandes Frutuoso, Matosinhos (PT); and Ana Paula Da Silva Coutinho, Alpendorada (PT)
Assigned to COLQUÍMICA-INDÚSTRIA NACIONAL DE COLAS, S.A., Valongo (PT)
Filed by COLQUÍMICA-INDÚSTRIA NACIONAL DE COLAS, S.A, Valongo (PT)
Filed on Mar. 9, 2023, as Appl. No. 18/181,341.
Prior Publication US 2024/0287353 A1, Aug. 29, 2024
Int. Cl. B32B 41/00 (2006.01); C09J 7/35 (2018.01); C09J 11/08 (2006.01); C09J 123/08 (2006.01)

CPC C09J 7/35 (2018.01) [C09J 11/08 (2013.01); C09J 123/0815 (2013.01); C09J 2301/304 (2020.08); C09J 2301/312 (2020.08); C09J 2301/408 (2020.08); C09J 2301/414 (2020.08)]

16 Claims

1. Sprayable hot melt adhesive for manufacturing disposable hygiene articles comprising:

between 20% and 35% by weight of a polymeric component wherein the polymeric component consisting:

at least one olefin block copolymer (OBC) with melt flow index at 190° C. inferior to 20 g/10 min measured according to ASTM D1238; and

an ethylene-octene copolymer with elongation at break superior to 90% measured according to ASTM D638;

between 1% and 15% by weight of a wax component;

between 0.5% and 2% by weight of an antioxidant component;

between 40% and 70% by weight of an resin component; and

2% to 12% by weight of a plasticizer component, wherein the sprayable hot melt adhesive is in the form of pellets, wherein the sprayable hot melt does not have polypropylene.