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:
Feb. 09, 2021
Filed:
Oct. 08, 2019
Saudi Arabian Oil Company, Dhahran, SA;
William Marsh Rice University, Houston, TX (US);
Muhammad M Rahman, Houston, TX (US);
Seyed Mohammad Sajadi, Houston, TX (US);
Ashok Kumar, Houston, TX (US);
Peter J Boul, Houston, TX (US);
Carl Thaemlitz, Houston, TX (US);
Pulickel M Ajayan, Houston, TX (US);
Saudi Arabian Oil Company, Dhahran, SA;
William Marsh Rice University, Houston, TX (US);
Abstract
Provide is a cement ink for a cement ink for 3D printing (which also includes additive manufacturing) of 3D cement structures and materials. The cement ink includes an American Petroleum Institute (API) Class G cement, a nano-clay, a superplasticizer, a hydroxyethyl cellulose, and a defoamer. The nano-clay may be hydrophilic bentonite. The superplasticizer may be a polycarboxylate ether. The defoamer may be 2-ethyl-1-hexanol. Processes for forming the cement ink and printing 3D cement structures using the cement ink are also provided.