US 12,441,880 B2
Poly(ester)carbonate and method for producing poly(ester)carbonate
Kazunori Nunome, Osaka (JP); Manabu Matsui, Osaka (JP); Takatsune Yanagida, Osaka (JP); Kazuyoshi Ogasawara, Osaka (JP); Keisuke Sato, Osaka (JP); Kyosuke Yamada, Osaka (JP); and Tatsuya Oyama, Osaka (JP)
Assigned to TEIJIN LIMITED, Osaka (JP)
Filed by TEIJIN LIMITED, Osaka (JP)
Filed on Nov. 1, 2022, as Appl. No. 17/978,550.
Application 17/978,550 is a continuation of application No. 16/957,470, granted, now 11,505,698, previously published as PCT/JP2018/048056, filed on Dec. 27, 2018.
Claims priority of application No. 2017-253843 (JP), filed on Dec. 28, 2017; and application No. 2017-253844 (JP), filed on Dec. 28, 2017.
Prior Publication US 2023/0051676 A1, Feb. 16, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. C08G 63/64 (2006.01); C08G 63/84 (2006.01); C08G 63/87 (2006.01); C08G 64/06 (2006.01); C08G 64/30 (2006.01); C08L 69/00 (2006.01); G02B 1/04 (2006.01)
CPC C08L 69/005 (2013.01) [C08G 63/64 (2013.01); C08G 63/84 (2013.01); C08G 63/87 (2013.01); C08G 64/06 (2013.01); C08G 64/30 (2013.01); C08G 64/305 (2013.01); C08G 64/307 (2013.01); G02B 1/041 (2013.01)] 5 Claims
 
1. A method of producing a poly(ester)carbonate, comprising subjecting a diol and a carbonate ester to a transesterification reaction in the presence of a catalyst, wherein the catalyst comprises aluminum or a compound thereof, and a phosphorus compound, and
wherein the phosphorus compound is selected from the group consisting of diethyl 3,5-di-tert-butyl-4-hydroxybenzylphosphonate and diethyl p-methylbenzylphosphonate, and
wherein the poly(ester)carbonate comprises 50 mol % or more of a stereostructural component unit based on all units, and the stereostructural component unit comprises a repeating unit derived from a compound represented by the following formula (A):

OG Complex Work Unit Chemistry
wherein:
the rings Z are each independently an aromatic group or a fused polycyclic aromatic group, each of Ra and Rb independently is a hydrogen atom, a halogen atom or a hydrocarbon group having a carbon number of 1 to 12 or a carbon number of 1 to 20, which optionally contain an aromatic group, each of Ar1 and Ar2 is a hydrogen atom or an aromatic group having a carbon number of 6 to 10, which optionally contain a substituent, each of L1 an L2 independently is a divalent linking group, m is 1, and n is 1.