Patent · US Expired

Aqueous coating compositions

US7049352B2 · kind B2 · utility

30Cited by
4References
37Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 26, 2002
Grant dateMay 23, 2006
Priority date
Expiry dateDec 14, 2022

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S525/902
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

Pigmented aqueous coating composition providing good blocking and elasticity properties comprises a blend of a seeded multistage polymer latex(es) having at least one soft and at least one hard polymer phases and a non-film-forming polymer latex(es), the seed polymer(s) having a Tg≧10° C. lower than that of the hard polymer phase(s) and preferably having a Tg≧10° C. higher than that of the soft polymer phase(s), and the multistage polymer(s) preferably having amino functionality incorporated by an imination reaction.

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