Patent · US Active

Natural stone sealer compositions

US11739234B2 · kind B2 · utility

0Cited by

9References

24Claims

0Family size

Assignee

Questech Corporation · GB

Inventors

Barry Culkin · Braintree, US
Roger Questel · New York, US
Robert Harrington · Plymouth, US
Douglas Croteau · North Springfield, US
Paul Thottathil · New Hyde Park, US
Purushoth Kesavan · Franklin Square, US
John M. Ryan · Littleton, US
Satyabrata Mukherjee · Westbury, US

Key dates

Filing date	Feb 2, 2021
Grant date	Aug 29, 2023
Priority date	—
Expiry date	Nov 12, 2041

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09D175/16
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Disclosed is a two-part composition for sealing natural stone or masonry, and methods of use. The two-part composition is comprised of (1) a first part comprising a polyvinylidene fluoride (PVDF) particulate; a low evaporation rate organic solvent; and water; and (2) a second part comprising a blend of a plurality of liquid resin formulations.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.