Patent · US Expired

Use of an amphoteric polymer to treat a hard surface

US6593288B2 · kind B2 · utility

36Cited by
6References
14Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 29, 2002
Grant dateJul 15, 2003
Priority date
Expiry dateJul 29, 2022

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC11D2111/24
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

This invention relates to the use of a water-soluble or water-dispersible copolymer comprising, in the form of polymerized units:(a) at least one monomer compound of general formula I: (b) at least one hydrophilic monomer bearing a function of acidic nature which is copolymerizable with (a) and capable of ionizing in the application medium,(c) optionally, at least one hydrophilic monomer compound containing ethylenic unsaturation and of neutral charge, bearing one or more hydrophilic groups, which is copolymerizable with (a) and (b),the a/b molar ratio being between 60/40 and 5/95,to give a hard surface hydrophilic properties.

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