Patent · US Expired

Softener-containing washing agent

US4589988A · kind A · utility

26Cited by
10References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 2, 1985
Grant dateMay 20, 1986
Priority date
Expiry dateMay 2, 2005

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC11D3/1273
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

Softener-containing washing agents which, in addition to the customary components of washing agents, contain 0 to 10% by weight of a quaternary ammonium compound and 1 to 30% by weight of a softener system which comprises 10 to 90% by weight of a tertiary amine and 90 to 10% by weight of a crystalline sheet-silicate of the formula EQU Me.sub.2 Si.sub.x O.sub.2x+1 .multidot. yH.sub.2 O in which Me denotes an alkali metal ion or a proton, x denotes a number greater than 7, in particular from 7.5 to 23, and y denotes a number smaller than 7 x, in particular smaller than x. In the softener system, the tertiary amine is in a state of adsorption on the alkali metal silicate. The ammonium compounds, which are adsorbed on said silicate, produce a softening effect in the washing agent but on the other hand are compatible with anionic surfactants in the washing agent. produce a softening effect in the washing agent but on the other hand are compatible with anionic surfactants in the washing agent.

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