US 12,460,138 B2
Blend of waste plastic with bio feed and process of preparation
Tengfei Liu, San Ramon, CA (US); Joel E Schmidt, San Ramon, CA (US); and Hye-Kyung C. Timken, Albany, CA (US)
Assigned to Chevron U.S.A. Inc., San Ramon, CA (US)
Filed by Chevron U.S.A. Inc., San Ramon, CA (US)
Filed on Jul. 10, 2023, as Appl. No. 18/349,276.
Claims priority of provisional application 63/359,546, filed on Jul. 8, 2022.
Prior Publication US 2024/0010927 A1, Jan. 11, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. C10G 11/05 (2006.01)
CPC C10G 11/05 (2013.01) [C10G 2300/1003 (2013.01); C10G 2300/1014 (2013.01); C10G 2300/1018 (2013.01); C10G 2300/305 (2013.01); C10G 2300/708 (2013.01); C10G 2400/02 (2013.01); C10G 2400/20 (2013.01); C10G 2400/30 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A process for preparing a stable blend of plastic and a bio feedstock comprising:
(a) mixing a bio feedstock and a plastic comprising polyethylene and/or polypropylene together and while mixing heating the mixture in the range of about 250 to 550 F and above the melting point of the plastic to form a homogeneous liquid blend with the amount of plastic in the liquid blend comprising less than 20% by weight of the mixture; and
(b) cooling the plastic melt and bio feedstock liquid blend to a temperature below the melting point of the plastic.