	US 11,834,577 B2
	Polycarbonate composition and associated article and method of additive manufacturing
Eddie Kebin Geng, Exton, PA (US); Rabeh Elleithy, Pittsfield, MA (US); Timothy Allessio, Pittsfield, MA (US); Peter Vollenberg, Mt. Vernon, IN (US); Walter R. Thompson, Exton, PA (US); and David Voorde, Pittsfield, MA (US)
Assigned to SABIC GLOBAL TECHNOLOGIES B.V., Bergen op Zoom (NL)
Appl. No. 17/280,244
Filed by SHPP Global Technologies B.V., Bergen op Zoom (NL)
PCT Filed Apr. 25, 2019, PCT No. PCT/US2019/029068 § 371(c)(1), (2) Date Mar. 26, 2021, PCT Pub. No. WO2020/068164, PCT Pub. Date Apr. 2, 2020.
Claims priority of application No. 18196849 (EP), filed on Sep. 26, 2018.
Prior Publication US 2022/0049089 A1, Feb. 17, 2022
Int. Cl. C08L 69/00 (2006.01); C08K 7/06 (2006.01); B29C 64/165 (2017.01); C08G 64/12 (2006.01); B33Y 80/00 (2015.01); B33Y 70/10 (2020.01); C08K 7/02 (2006.01)

CPC C08L 69/00 (2013.01) [B29C 64/165 (2017.08); C08G 64/12 (2013.01); C08K 7/06 (2013.01); B33Y 70/10 (2020.01); B33Y 80/00 (2014.12); C08K 7/02 (2013.01); C08K 2201/003 (2013.01); C08L 2201/08 (2013.01); C08L 2205/02 (2013.01)]

3 Claims

1. A composition, comprising, based on the weight of the composition:

40 to 75 weight percent of a copolycarbonate comprising, based on 100 mole percent total carbonate units, 60 to 75 mole percent bisphenol A carbonate units and to 25 to 40 mole percent of second carbonate units of the formula

wherein

R⁴is phenyl, and p, q, and j are each zero;

10 to 45 weight percent of a bisphenol A polycarbonate having a melt volume flow rate of 15 to 150 cubic centimeters per 10 minutes determined according to ASTM D1238-13 at 300° C. and 1.2 kilogram load; and

15 to 25 weight percent of carbon fiber having a diameter of 4 to 100 micrometers;

wherein the composition excludes polycarbonate-polysiloxane copolymers; and

wherein the composition exhibits a melt flow rate less than or equal to 20 grams per 10 minutes, determined according to ASTM D-1238-13 at 300° C. and 1.2 kilogram load.