US 11,053,360 B2
Methods of making an elastomer composite reinforced with silica and carbon black and products containing same
Jincheng Xiong, Boxborough, MA (US); Martin C. Green, Boxborough, MA (US); William R. Williams, Charlotte, NC (US); Dmitry Fomitchev, Lexington, MA (US); Gerald D. Adler, Charlestown, MA (US); Duane G. McDonald, Cambridge, MA (US); Ron Grosz, Andover, MA (US); and Michael D. Morris, Nashua, NH (US)
Assigned to Cabot Corporation, Boston, MA (US)
Filed by Cabot Corporation, Boston, MA (US)
Filed on May 31, 2019, as Appl. No. 16/427,368.
Application 16/427,368 is a continuation of application No. 15/987,956, filed on May 24, 2018, granted, now 10,494,490.
Application 15/987,956 is a continuation of application No. 15/600,017, filed on May 19, 2017, granted, now 10,000,613, issued on Jun. 19, 2018.
Application 15/600,017 is a continuation of application No. PCT/US2016/042109, filed on Jul. 13, 2016.
Claims priority of provisional application 62/294,599, filed on Feb. 12, 2016.
Claims priority of provisional application 62/192,891, filed on Jul. 15, 2015.
Prior Publication US 2019/0375902 A1, Dec. 12, 2019
This patent is subject to a terminal disclaimer.
Int. Cl. C08J 5/02 (2006.01); C08K 3/36 (2006.01); C08J 3/22 (2006.01); C08K 3/04 (2006.01); C08J 3/16 (2006.01); C08K 9/02 (2006.01); C08L 7/02 (2006.01)
CPC C08J 3/22 (2013.01) [C08J 3/16 (2013.01); C08K 3/04 (2013.01); C08K 3/36 (2013.01); C08K 9/02 (2013.01); C08L 7/02 (2013.01); C08J 2307/02 (2013.01); C08K 2201/006 (2013.01)] 26 Claims
 
1. A method of producing a silica elastomer composite, comprising:
providing a first fluid comprising a destabilized dispersion of silica with silica present in an amount of from 6 to 35 weight percent, and said first fluid having a first fluid volumetric flow rate, and providing a second fluid comprising an elastomer latex and said second fluid having a second fluid volumetric flow rate, and combining under continuous flow conditions at least the first fluid and the second fluid to form a semi-solid silica-containing continuous rubber phase mixture, and forming said semi-solid silica-containing continuous rubber phase mixture into said silica elastomer composite in a mixing chamber of a device, and recovering said silica elastomer composite having a silica content of about 15 phr to about 180 phr,
wherein said at least one first fluid is provided as:
i) two streams with one stream comprising a dispersion comprising carbon black and the other stream comprising said destabilized dispersion of silica; or
ii) a single stream comprising a dispersion comprising carbon black and said destabilized dispersion of silica; or
iii) a single stream of the destabilized dispersion of silica that includes carbon black.