	US 12,071,527 B2
	Flame retardant film
Geert Vercruysse, Mortsel (BE); Hubertus Van Aert, Mortsel (BE); Dirk Quintens, Mortsel (BE); Sarah Richardson, Mortsel (BE); and Stefaan Smet, Mortsel (BE)
Assigned to Agfa-Gevaert NV, Mortsel (BE)
Appl. No. 17/767,308
Filed by AGFA-GEVAERT NV, Mortsel (BE)
PCT Filed Sep. 30, 2020, PCT No. PCT/EP2020/077320 § 371(c)(1), (2) Date Apr. 7, 2022, PCT Pub. No. WO2021/069273, PCT Pub. Date Apr. 15, 2021.
Claims priority of application No. 19201981 (EP), filed on Oct. 8, 2019.
Prior Publication US 2022/0363846 A1, Nov. 17, 2022
Int. Cl. C08J 5/18 (2006.01); C08J 7/05 (2020.01); C09D 1/00 (2006.01); C09D 5/18 (2006.01)

CPC C08J 5/18 (2013.01) [C08J 7/05 (2020.01); C09D 1/00 (2013.01); C09D 5/18 (2013.01); C08J 2367/02 (2013.01)]

20 Claims

1. A flame retardant film comprising a polyester containing film comprising a flame retardant layer on a side thereof, the flame retardant layer comprising a colloidal metal oxide in an amount of 6 g/m²or more, an inorganic binder in an amount of 2 g/m²or more, a first flame retardant being a phosphorous containing compound in an amount of 10 g/m²or more, and a second flame retardant being a mineral compound selected from the group consisting of aluminum hydroxide, aluminum trihydrate, magnesium hydroxide, magnesium calcium carbonate, hydrated magnesium carbonate, aluminum oxide hydroxide, boron compounds, antimony trioxide, and combinations thereof, the amount of the second flame retardant is 6 g/m²or more.