US 11,718,728 B2
Single layer polymer films and electronic devices
Laila Maclaughlin, Stoutsville, OH (US); Husnu Alp Alidedeoglu, New Albany, OH (US); Christopher Robert Becks, Grove City, OH (US); Thomas Edward Carney, Orient, OH (US); Scott John Herrmann, Gahanna, OH (US); and Joseph Casey Johnson, Pickerington, OH (US)
Assigned to DUPONT ELECTRONICS, INC., Wilmington, DE (US)
Filed by DUPONT ELECTRONICS, INC., Wilmington, DE (US)
Filed on Nov. 3, 2020, as Appl. No. 17/88,249.
Claims priority of provisional application 62/938,665, filed on Nov. 21, 2019.
Prior Publication US 2021/0155768 A1, May 27, 2021
Int. Cl. C08K 3/04 (2006.01); C08K 5/01 (2006.01); C08K 3/36 (2006.01); C08G 73/10 (2006.01)
CPC C08K 3/04 (2013.01) [C08G 73/1067 (2013.01); C08K 3/36 (2013.01); C08K 5/01 (2013.01); C08K 2201/005 (2013.01)] 20 Claims
 
1. A single layer polymer film comprising:
25 to 97.5 wt % of a polyimide having a refractive index of 1.74 or less;
0.5 to 20 wt % of a matting agent; and
1 to 30 wt % of a black colorant, wherein:
the wt % of each component is based on the total weight of the film; and
on an air side, the single layer polymer film has an L* color of 33 or less and a 60° gloss of 10 or less.