Patent · US Active

Dirt pick-up resistant composition

US11377571B2 · kind B2 · utility

5Cited by

41References

21Claims

0Family size

Inventors

Robert Sandoval · Crystal Lake, US
James Jeffrey Harris · Pittsburgh, US
Mary Jane Hibben · Elburn, US
Andrew Balgeman · Woodstock, US
Christopher Shaffer · Craydon Court, US
Glenn Frazee · Kenosha, US
Michael Wildman · Hoffman Estates, US

Key dates

Filing date	Jun 24, 2020
Grant date	Jul 5, 2022
Priority date	—
Expiry date	Jun 24, 2040

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02A50/20
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Water-based compositions that are resistant to dirt pickup, efflorescence, tannin bleed-through and surfactant leaching are described. The water-based composition includes a latex or water-dispersible polymer and a non-VOC UV-VIS (preferably, ultraviolet) absorber as a dirt pickup resistance additive. Methods of making water-based compositions including a non-VOC UV-VIS absorber as an additive are also described.

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