Flexible durable cement
US10689560B2 · kind B2 · utility
0Cited by
6References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 1, 2019 |
| Grant date | Jun 23, 2020 |
| Priority date | — |
| Expiry date | Feb 1, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/13
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
According to at least one embodiment of the present description, a cement slurry includes 50% to 90% BWOC of a cement precursor material based on a total weight of the cement slurry; and from 10% to 50% BWOC of a flexible additive based on the total weight of the cement slurry. The flexible additive includes hydrophilic polyolefin fibers or 2,6-di-tert-butyl-p-cresol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.