Patent · US Active

Aqueous water barrier coatings

US11821143B2 · kind B2 · utility

0Cited by

3References

16Claims

0Family size

Assignee

BASF SE

Inventors

Gary A. Deeter · Livonia, US
Frank Reinhold · Canton, US
Amirpouyan SARDASHTI · Detroit, US
Andrew Seecharan · Southfield, US

Key dates

Filing date	Nov 17, 2020
Grant date	Nov 21, 2023
Priority date	—
Expiry date	Jun 14, 2041

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD21H19/20
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Described herein is a multi-phase polymer binder including an aqueous polymer dispersion, an optional hydrophobic emulsion, and an optional surfactant. The polymer binder, when dried, provides a water uptake of less than about 5 g/m2/20 min, a seal strength of at least about 200 Newton/meter (N/m) as measured at 25° C. or at 90° C., and sufficient block resistance to impart no substrate damage.

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