US 11,732,119 B2
Composite of polar organic polymer and ultralow-wettability carbon black
Tian Lan, Langhorne, PA (US); Xindi Yu, Phoenixville, PA (US); Michael Q. Tran, Wayne, PA (US); Paul J. Brigandi, Schwenksville, PA (US); Jeffrey M. Cogen, Flemington, NJ (US); Timothy J. Person, Pottstown, PA (US); and Yichi Zhang, Novi, MI (US)
Assigned to DOW GLOBAL TECHNOLOGIES LLC, Midland, MI (US); and ROHM AND HAAS COMPANY, Collegeville, PA (US)
Appl. No. 16/976,855
Filed by Dow Global Technologies LLC, Midland, MI (US); and Rohm and Haas Company, Collegeville, PA (US)
PCT Filed Mar. 22, 2019, PCT No. PCT/US2019/023509
§ 371(c)(1), (2) Date Aug. 31, 2020,
PCT Pub. No. WO2019/190900, PCT Pub. Date Oct. 3, 2019.
Claims priority of provisional application 62/649,120, filed on Mar. 28, 2018.
Prior Publication US 2021/0002464 A1, Jan. 7, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. C08L 23/08 (2006.01); C08K 3/014 (2018.01); C08K 3/04 (2006.01); H01B 1/24 (2006.01)
CPC C08L 23/0853 (2013.01) [C08K 3/014 (2018.01); C08K 3/04 (2013.01); H01B 1/24 (2013.01); C08K 2201/001 (2013.01); C08K 2201/006 (2013.01)] 13 Claims
 
1. A semiconductive composite material consisting essentially of (A) a polar ethylene-based copolymer and an electrical conducting effective amount of (B) an ultra-low-wettability carbon black (ULW-CB), which has a Brunauer-Emmett-Teller (BET) nitrogen surface area of from 35 to 190 square meters per gram (m2/g), measured by BET Nitrogen Surface Area Test Method; and an oil absorption number (OAN) from 115 to 180 milliliters of oil per 100 grams (mL/100 g), measured by Oil Absorption Number Test Method; and a water uptake of from 400 to 700 parts per million (ppm, weight), measured by Moisture Uptake Test Method;
wherein the (A) polar ethylene-based copolymer is from 66 to 81 wt % of the total weight of the semiconductive composite material;
wherein the (B) ULW-CB is from 19 to 34 wt % of the total weight of the semiconductive composite material.