US 11,739,183 B2
Poly(amide-imide) copolymer, method of manufacturing the same, poly(amide-imide) copolymer film, window for display device, and display device
Hyunjeong Jeon, Seoul (KR); Sang Soo Jee, Hwaseong-si (KR); and Kyeong-sik Ju, Suwon-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-do (KR); and SAMSUNG SDI CO., LTD., Gyeonggi-do (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR); and SAMSUNG SDI CO., LTD., Yongin-si (KR)
Filed on Jul. 2, 2020, as Appl. No. 16/919,353.
Application 16/919,353 is a continuation of application No. 15/847,063, filed on Dec. 19, 2017, granted, now 10,738,164.
Claims priority of application No. 10-2017-0023582 (KR), filed on Feb. 22, 2017.
Prior Publication US 2020/0332063 A1, Oct. 22, 2020
Int. Cl. C08G 73/14 (2006.01); C08G 73/10 (2006.01); C09D 179/08 (2006.01); C08J 5/18 (2006.01); C08G 18/60 (2006.01); C08G 18/76 (2006.01); C08G 18/73 (2006.01); C08G 18/64 (2006.01); C08G 18/75 (2006.01); G02F 1/1333 (2006.01)
CPC C08G 73/14 (2013.01) [C08G 18/603 (2013.01); C08G 18/6438 (2013.01); C08G 18/73 (2013.01); C08G 18/755 (2013.01); C08G 18/7621 (2013.01); C08G 73/1035 (2013.01); C08J 5/18 (2013.01); C09D 179/08 (2013.01); G02F 1/133308 (2013.01); C08G 2150/00 (2013.01); C08J 2379/08 (2013.01); G02F 1/133305 (2013.01); G02F 1/133331 (2021.01)] 14 Claims
 
1. A poly(amide-imide) copolymer, comprising:
an amide structural unit comprising an amide bond included in a polymer main chain, and imide structural units comprising an imide bond included in the polymer main chain,
wherein the imide structural units comprise:
a first imide structural unit comprising a moiety cross-linked to an adjacent polymer main chain through an amide bond, and
a second imide structural unit, which is not cross-linked to an adjacent polymer main chain,
wherein the first imide structural unit comprises a structural unit represented by Chemical Formula 2

OG Complex Work Unit Chemistry
wherein, in Chemical Formula 2,
X is the same or different in each structural unit and is independently a substituted or unsubstituted C6 to C20 monocyclic aromatic group, a substituted or unsubstituted C4 to C20 monocyclic non-aromatic group, a substituted or unsubstituted C8 to C20 condensed polycyclic aromatic group, a substituted or unsubstituted C6 to C20 condensed polycyclic non-aromatic group, a substituted or unsubstituted C6 to C20 non-condensed polycyclic aromatic group, a substituted or unsubstituted C6 to C20 non-condensed polycyclic non-aromatic group, or a combination thereof, wherein each of the substituted or unsubstituted C6 to C20 non-condensed polycyclic aromatic group and the substituted or unsubstituted C6 to C20 non-condensed polycyclic non-aromatic group are linked by a single bond or a linking group comprising a substituted or unsubstituted fluorenylene group, O, S, C(═O), OC(═O), S(═O), S(═O)2, C(═O)NH, CRa(OH), SiRbRc, or (CRdRe)p (1≤p≤10), wherein Ra to Re are independently hydrogen, a C1 to C30 alkyl group, a C1 to C30 haloalkyl group, a halogen, or a hydroxy group,
Y is a substituted or unsubstituted C1 to C20 alkylene group, a substituted or unsubstituted C3 to C20 cycloalkylene group, a substituted or unsubstituted C3 to C20 heterocycloalkylene group, a substituted or unsubstituted C6 to C20 arylene group, a substituted or unsubstituted C3 to C20 heteroarylene group, or a combination thereof, and
R11 is the same or different in each structural unit and is independently a single bond or a divalent organic group comprising a substituted or unsubstituted C6 to C30 aromatic or non-aromatic ring group, wherein the substituted or unsubstituted C6 to C30 aromatic or non-aromatic ring group is present:
as a single aromatic or non-aromatic ring;
as two or more aromatic or non-aromatic rings that are condensed to provide a condensed polycyclic aromatic group; or
as two or more aromatic or non-aromatic rings that are linked by a single bond or a linking group comprising a substituted or unsubstituted fluorenylene group, O, S, C(═O), OC(═O), S(═O), S(═O)2, C(═O)NH, CRf(OH), SiRgRh, or (CRiRj)p (1≤p≤10) to provide a non-condensed polycyclic aromatic group, wherein Rf to Rj are independently hydrogen, a C1 to C30 alkyl group, a C1 to C30 haloalkyl group, a halogen, or a hydroxy group, and
* is a linking point of the polymer main chain.