US 12,234,374 B2
Polymer compositions and coating solutions
Kostantinos Kourtakis, Media, PA (US); Michael Mulzer, Circleville, OH (US); Benjamin Samson, Circleville, OH (US); and Michael Thomas Kwasny, Columbus, OH (US)
Assigned to DUPONT ELECTRONICS, INC., Wilmington, DE (US)
Filed by DUPONT ELECTRONICS, INC., Wilmington, DE (US)
Filed on Feb. 13, 2023, as Appl. No. 18/168,036.
Claims priority of provisional application 63/315,817, filed on Mar. 2, 2022.
Prior Publication US 2023/0279262 A1, Sep. 7, 2023
Int. Cl. C09D 179/08 (2006.01); B32B 15/08 (2006.01); B32B 15/20 (2006.01); B32B 27/28 (2006.01); C08G 73/10 (2006.01)
CPC C09D 179/08 (2013.01) [B32B 15/08 (2013.01); B32B 15/20 (2013.01); B32B 27/281 (2013.01); C08G 73/1017 (2013.01); C08G 73/1032 (2013.01); C08G 73/1042 (2013.01); C08G 73/1082 (2013.01); B32B 2255/10 (2013.01); B32B 2255/26 (2013.01); B32B 2307/102 (2013.01); B32B 2457/08 (2013.01); B32B 2457/20 (2013.01); B32B 2571/02 (2013.01)] 12 Claims
 
1. A polymer composition comprising a first polymer derived from:
a soluble polymer composition comprising an imide group; and
a Tg reducing compound comprising an amine group, wherein:
the first polymer has a glass transition temperature that is lower than a second polymer derived from the same soluble polymer composition, but without a Tg reducing compound comprising an amine group; and
the Tg reducing compound comprises an amine moiety comprising a first masked amine that can be converted to form an amine, wherein the first masked amine can be thermally converted or dissociated and is selected from the group consisting of carbamates, amides, sulfonamides, ammonium salts made from acids and silyl derivatives.