US 12,122,877 B2
Polymer resin composition, and polymer film, resin laminate using the same
Il Hwan Choi, Daejeon (KR); Jiae Yeo, Daejeon (KR); Soonyong Park, Daejeon (KR); and Young Ji Tae, Daejeon (KR)
Assigned to LG CHEM, LTD., Seoul (KR)
Appl. No. 17/418,402
Filed by LG CHEM, LTD., Seoul (KR)
PCT Filed Nov. 30, 2020, PCT No. PCT/KR2020/017302
§ 371(c)(1), (2) Date Jun. 25, 2021,
PCT Pub. No. WO2021/118143, PCT Pub. Date Jun. 17, 2021.
Claims priority of application No. 10-2019-0163108 (KR), filed on Dec. 9, 2019; and application No. 10-2019-0163984 (KR), filed on Dec. 10, 2019.
Prior Publication US 2022/0073680 A1, Mar. 10, 2022
Int. Cl. C08G 69/32 (2006.01); C08J 5/18 (2006.01)
CPC C08G 69/32 (2013.01) [C08J 5/18 (2013.01); C08G 2250/00 (2013.01); C08J 2377/10 (2013.01)] 15 Claims
 
1. A polymer resin composition comprising:
a polyamide resin in which an average particle size of individual crystals measured by a small-angle X-ray scattering apparatus is 8.0 nm or less; and
at least one compound selected from the group consisting of a metal salt compound and an end-capping agent compound,
wherein an amorphous polymer chain is present between the individual crystals having an average particle size of 8.0 nm or less,
wherein the individual crystals having an average particle size of 8.0 nm or less comprises a first polyamide segment including a repeat unit represented by Chemical Formula 1, or a block composed thereof:

OG Complex Work Unit Chemistry
in the Chemical Formula 1, Ar1 is a substituted or unsubstituted arylene group having 6 to 20 carbon atoms, or a substituted or unsubstituted heteroarylene group having 2 to 20 carbon atoms,
wherein the amorphous polymer chain comprises,
a second polyamide segment including a repeat unit represented by Chemical formula 2, or a block composed thereof:

OG Complex Work Unit Chemistry
in the Chemical Formula 2,
Ar2 is a substituted or unsubstituted arylene group having 6 to 20 carbon atoms, or a substituted or unsubstituted heteroarylene group having 2 to 20 carbon atoms, and
wherein the first polyamide segment and the second polyamide segment form a backbone chain containing an alternating repeat unit represented by Chemical Formula 4:

OG Complex Work Unit Chemistry
in the Chemical Formula 4,
Ar1 and Ar2 are each independently a substituted or unsubstituted arylene group having 6 to 20 carbon atoms, or a substituted or unsubstituted heteroarylene group having 2 to 20 carbon atoms,
a1 and a2 are each independently an integer of 1 to 10, and
b1 and b2 are each independently an integer of 1 to 5.