US 11,866,542 B2
Resin composition
Sang Min Park, Daejeon (KR); Se Woo Yang, Daejeon (KR); Yoon Gyung Cho, Daejeon (KR); Yang Gu Kang, Daejeon (KR); Eun Suk Park, Daejeon (KR); Hyun Suk Kim, Daejeon (KR); Hyoung Sook Park, Daejeon (KR); and Young Jo Yang, Daejeon (KR)
Assigned to LG Chem, Ltd.
Appl. No. 16/646,816
Filed by LG Chem, Ltd., Seoul (KR)
PCT Filed Mar. 19, 2019, PCT No. PCT/KR2019/003152
§ 371(c)(1), (2) Date Mar. 12, 2020,
PCT Pub. No. WO2019/190108, PCT Pub. Date Oct. 3, 2019.
Claims priority of application No. 10-2018-0035751 (KR), filed on Mar. 28, 2018; and application No. 10-2019-0029279 (KR), filed on Mar. 14, 2019.
Prior Publication US 2020/0277432 A1, Sep. 3, 2020
Int. Cl. H01M 50/211 (2021.01); C08G 18/42 (2006.01); B60R 16/04 (2006.01); C08G 18/24 (2006.01); C08K 3/22 (2006.01); H01M 50/271 (2021.01)
CPC C08G 18/4233 (2013.01) [B60R 16/04 (2013.01); C08G 18/246 (2013.01); C08K 3/22 (2013.01); H01M 50/211 (2021.01); H01M 50/271 (2021.01); C08K 2003/2227 (2013.01); H01M 2220/20 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A urethane-based composition comprising:
a main composition part comprising an ester-based polyol resin;
a curing agent composition part comprising a polyisocyanate;
a filler; and
a moisture scavenger,
wherein the ester-based polyol resin is an amorphous polyol or a crystalline polyol,
wherein the amorphous polyol does not have a crystallization temperature (Tc) or a melting temperature (Tm) in a DSC (differential scanning calorimetry) analysis performed at a rate of 10° C./minute within a range of −80° C. to 60° C.,
wherein the crystalline polyol has a melting temperature (Tm) of −5° C. or lower,
wherein the filler is contained in an amount of 100 to 2,000 parts by weight relative to 100 parts by weight of the sum of the ester-based polyol resin and polyisocyanate,
wherein the curing agent composition part comprises the filler and the moisture scavenger, and
wherein the ester-based polyol resin is represented by the following formula 1 or 2:

OG Complex Work Unit Chemistry
wherein, X is a carboxylic acid-derived unit, Y is a polyol-derived unit, n is a number within a range of 2 to 10, and m is a number within a range of 1 to 10.