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:
Aug. 12, 2025
Filed:
Feb. 03, 2022
Saudi Arabian Oil Company, Dhahran, SA;
Sivaprakash Shanmugam, Houston, TX (US);
Ashok Santra, Houston, TX (US);
Carl Thaemlitz, Houston, TX (US);
Saudi Arabian Oil Company, Dhahran, SA;
Abstract
A cement slurry may include an aqueous phase; a cement precursor material; and a hydrophilic branched star polymer. The hydrophilic branched star polymer is a crosslinked, polymerized reaction product of crosslinker C and hydrophilic monomer A and hydrophilic/hydrophobic monomer B and optionally hydrophilic/hydrophobic monomer D. The crosslinked polymerized reaction product includes a plurality of block copolymer segments of hydrophilic monomer A and hydrophilic/hydrophobic monomer B interconnected via crosslinker C; a plurality of block copolymer segments of hydrophilic monomer A, hydrophilic monomer B, and hydrophilic/hydrophobic monomer D interconnected via crosslinker C; or combinations thereof.