Patent · US Active

Use of aqueous dispersions of VDF-based polymers in the preparation of paints for coatings of architectural substrata

US7641974B2 · kind B2 · utility

2Cited by

6References

15Claims

0Family size

Assignee

SOLVAY SOLEXIS S.P.A. · IT

Inventors

Bradley Lane Kent · Teaneck, US
Michelle Kelly · Plainsboro, US
Mario Visca · Alessandria, IT

Key dates

Filing date	Jan 4, 2006
Grant date	Jan 5, 2010
Priority date	—
Expiry date	Jan 19, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/3154
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Use for the preparation of paints for substrata coatings of aqueous dispersions of VDF-based polymers having an average particle size between 0.260 and 0.3 micrometers comprising a bifunctional surfactant of formula:A-Rf-B (I)whereinA=—O—CFX—COOM; B=—CFX—COOM with X=F, CF3;M=NH4, alkaline metal, H;Rf is a linear or branched perfluoroalkyl chain, or a (per)fluoropolyether chain such that the number average molecular weight of (I) is in the range 600-800.

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