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:
Mar. 17, 2026
Filed:
Feb. 11, 2022
Dow Global Technologies Llc, Midland, MI (US);
Rohm and Haas Company, Collegeville, PA (US);
Yi Fan, Lake Jackson, TX (US);
Jorg Theuerkauf, Midland, MI (US);
Michael J. Radler, Saginaw, MI (US);
Stacey A. Saba, Eagleville, PA (US);
Kurt A. Koppi, Midland, MI (US);
Sean M. Keenan, Midland, MI (US);
Jessica R. Levin, Philadelphia, PA (US);
Robert L. Sammler, Midland, MI (US);
DOW GLOBAL TECHNOLOGIES LLC, Midland, MI (US);
Rohm and Hass Company, Collegeville, PA (US);
Abstract
The present invention provides a dry mix composition of a low-viscosity cellulose ether (50 to 750 mPa·s at 1 wt. % solids, at 20 C, and a 514 s-1 shear rate, using a strain-controlled rotational rheometer (for example, ARES-G2™, TA Instruments), a graded aggregate, and a hydraulic cement, or a granular wet cement composition of the cement, graded aggregate and an admixture therefor including the cellulose ether. The wet granular hydraulic cement composition behaves like asphalt compositions and has zero or near zero slump, a high lubricity and from 5 wt. % to less than 13 wt. % of water, or, preferably from greater than 5 to 10.5 wt. %, based on the total weight of the granular wet cement composition. The low-viscosity cellulose ether enables lubricity without impairing compaction and without causing air entrainment.