US 12,466,917 B2
Polyamide resin, and polymer film, resin laminate using the same
Il Hwan Choi, Daejeon (KR); Soonyong Park, Daejeon (KR); Bi Oh Ryu, Daejeon (KR); Young Ji Tae, Daejeon (KR); and Youngseok Park, Daejeon (KR)
Assigned to LG CHEM, LTD., Seoul (KR)
Appl. No. 16/972,485
Filed by LG CHEM, LTD., Seoul (KR)
PCT Filed Nov. 1, 2019, PCT No. PCT/KR2019/014715
§ 371(c)(1), (2) Date Sep. 24, 2021,
PCT Pub. No. WO2020/096284, PCT Pub. Date May 14, 2020.
Claims priority of application No. 10-2018-0134755 (KR), filed on Nov. 5, 2018; application No. 10-2018-0153911 (KR), filed on Dec. 3, 2018; application No. 10-2019-0014022 (KR), filed on Feb. 1, 2019; application No. 10-2019-0034611 (KR), filed on Mar. 26, 2019; application No. 10-2019-0125890 (KR), filed on Oct. 11, 2019; application No. 10-2019-0137544 (KR), filed on Oct. 31, 2019; and application No. 10-2019-0137545 (KR), filed on Oct. 31, 2019.
Prior Publication US 2022/0033653 A1, Feb. 3, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. C08G 69/32 (2006.01); C08G 69/26 (2006.01); C08G 69/28 (2006.01); C08G 69/42 (2006.01); C08G 81/00 (2006.01); C08J 5/18 (2006.01); C08J 7/046 (2020.01); C08L 77/10 (2006.01)
CPC C08G 69/32 (2013.01) [C08G 69/265 (2013.01); C08G 69/28 (2013.01); C08G 69/42 (2013.01); C08G 81/00 (2013.01); C08J 5/18 (2013.01); C08J 7/046 (2020.01); C08L 77/10 (2013.01); C08J 2377/10 (2013.01); C08L 2201/08 (2013.01); C08L 2201/10 (2013.01); C08L 2203/16 (2013.01); C08L 2203/20 (2013.01); C08L 2203/30 (2013.01)] 16 Claims
OG exemplary drawing
 
1. 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 a UV-cut slope (dT/dλ) measured for a polyamide resin specimen having a thickness of 45 μm or more and 55 μm or less according to ASTM E424 is at least 0.25 in the range of 10% to 80% transmittance,
wherein amorphous polymer chains are present between the individual crystals having the average particle size of 8.0 nm or less,
wherein a first polyamide segment is included in the individual crystals having the average particle size of 8.0 nm or less,
wherein a second polyamide segment is included in the amorphous polymer chains present between the individual crystals having the average particle size of 8.0 nm or less, and,
wherein the first polyamide segment and the second polyamide segment form a main chain including an alternating-repeating unit represented by the following 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.