US 11,926,733 B2
Polycarbonate copolymer blends, articles formed therefrom, and methods of manufacture
Paul Dean Sybert, Evansville, IN (US); Norimitsu Yamaguchi, Newburgh, IN (US); Jacob Lee Oberholtzer, Evansville, IN (US); and James Alan Mahood, Evansville, IN (US)
Assigned to SHPP GLOBAL TECHNOLOGIES B.V., Bergen op Zoom (NL)
Appl. No. 16/971,398
Filed by SABIC GLOBAL TECHNOLOGIES B.V., Bergen op Zoom (NL)
PCT Filed Feb. 21, 2019, PCT No. PCT/US2019/018941
§ 371(c)(1), (2) Date Aug. 20, 2020,
PCT Pub. No. WO2019/165062, PCT Pub. Date Aug. 29, 2019.
Claims priority of application No. 18157924 (EP), filed on Feb. 21, 2018.
Prior Publication US 2020/0392331 A1, Dec. 17, 2020
Int. Cl. C08L 69/00 (2006.01); C08G 73/10 (2006.01); C08K 5/00 (2006.01); C08K 5/3417 (2006.01); C08K 5/42 (2006.01); C08L 79/08 (2006.01)
CPC C08L 69/005 (2013.01) [C08G 73/1071 (2013.01); C08K 5/0066 (2013.01); C08K 5/3417 (2013.01); C08K 5/42 (2013.01); C08L 79/08 (2013.01); C08L 2201/10 (2013.01); C08L 2205/025 (2013.01); C08L 2205/03 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A polymer blend, comprising
5 to 95 weight percent of a poly(ester-carbonate-carbonate) comprising
40 to 95 mole percent of ester units comprising low heat bisphenol groups and high heat bisphenol groups, wherein the ester units comprise 20 to 80 mole percent of the low heat bisphenol groups and 20 to 80 mole percent of the high heat bisphenol groups, based on the total moles of ester units in the poly(ester-carbonate-carbonate), and
5 to 60 mole percent of carbonate units comprising the low heat bisphenol groups and the high heat bisphenol groups,
wherein the carbonate units comprise 20 to 80 mole percent of the low heat bisphenol groups and 20 to 80 mole percent of the high heat bisphenol groups, based on the total moles of carbonate units in the poly(ester-carbonate-carbonate); and
5 to 95 weight percent of a poly(etherimide), wherein
the weight percent of each polymer is based on the total weight of the polymers in the blend, and
a molded 0.125-inch thick ASTM tensile bar comprising the polymer blend has a haze value of less than 25% as determined according to ASTM D1003 using the color space CIE1931 with illuminant C and a 2° observer, and
wherein when the poly(ester-carbonate-carbonate) and the polyetherimide have a weight ratio of from 4:1 to 1:2, a multiplication product of the mole percent of the ester units and the mole percent of the high heat bisphenol groups in the poly(ester-carbonate-carbonate) is greater than 2000, and
when the poly(ester-carbonate-carbonate) and the polyetherimide have a weight ratio of greater than 4:1 or less than 1:2, a multiplication product of the mole percent of the ester units and the mole percent of the high heat bisphenol groups in the poly(ester-carbonate-carbonate) is greater than or equal to 1800.