The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 24, 2024
Filed:
Oct. 07, 2021
Applicant:
Basell Poliolefine Italia S.r.l., Milan, IT;
Inventors:
Sandor Nagy, Seabrook, TX (US);
Daniel F. White, Houston, TX (US);
Christopher D. Smith, Kingwood, TX (US);
David L Ramage, Friendswood, TX (US);
Assignee:
Basell Poliolefine Italia S.r.l., Milan, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 11/20 (2006.01);
U.S. Cl.
CPC ...
C08J 11/20 (2013.01); C08J 2323/06 (2013.01); C08J 2323/12 (2013.01); C08J 2325/06 (2013.01);
Abstract
Methods of depolymerizing polyolefin-based material into useful petrochemical products using styrene oligomers or polymers, and heat are described. The styrene oligomers or polymers improve the depolymerization reaction by decreasing the halftime for the depolymerization, which results in a higher depolymerization rate and a shorter residence time in the depolymerization unit, allowing for a predictable depolymerization reaction, and decreasing the branching or aromatic formations in the product.