US 12,391,835 B2
Refined surface modified carbon black and methods of making same
Raymond Soufiani, Katy, TX (US); Eduardo Vega, Jr., Richmond, TX (US); Lashan M. H. De Silva, Dickinson, TX (US); Frank E. Welsh, Sugar Land, TX (US); and Luis P. Chibante, Fredericton (CA)
Assigned to CONTINENTAL CARBON CO., Houston, AS (US)
Filed by Continental Carbon Co., Houston, TX (US)
Filed on Nov. 6, 2024, as Appl. No. 18/939,012.
Application 18/197,835 is a division of application No. 17/581,544, filed on Jan. 21, 2022, granted, now 11,753,549, issued on Sep. 12, 2023.
Application 18/939,012 is a continuation in part of application No. 18/914,821, filed on Oct. 14, 2024.
Application 18/914,821 is a continuation of application No. 18/589,988, filed on Feb. 28, 2024, granted, now 12,116,485, issued on Oct. 15, 2024.
Application 18/589,988 is a continuation of application No. 18/197,835, filed on May 16, 2023, granted, now 11,945,956, issued on Apr. 2, 2024.
Claims priority of provisional application 63/143,563, filed on Jan. 29, 2021.
Prior Publication US 2025/0059376 A1, Feb. 20, 2025
This patent is subject to a terminal disclaimer.
Int. Cl. C09C 1/56 (2006.01); C08L 9/06 (2006.01)
CPC C09C 1/565 (2013.01) [C08L 9/06 (2013.01); C09C 1/56 (2013.01); C01P 2002/88 (2013.01); C01P 2004/02 (2013.01); C01P 2004/50 (2013.01); C01P 2004/61 (2013.01); C01P 2004/62 (2013.01); C01P 2004/64 (2013.01); C01P 2006/12 (2013.01); C01P 2006/42 (2013.01); C08L 2205/025 (2013.01); C08L 2312/00 (2013.01)] 15 Claims
 
1. A refined surface modified low hysteresis carbon black (SMLHCB-R) product, comprising:
a low hysteresis carbon black having a surface that has been modified to have a surface modifier attached thereto, wherein the surface modifier comprises at least one amine group and at least one thiol group and/or di- and/or polysulfidic linkage, wherein the carbon black has an aggregate size greater than 0.1 micrometers and less than 1.0 micrometers, wherein the surface modifier comprises an amino acidic compound or its derivative.