Patent · US Expired

Pourable agglomerated aluminosilicate builder compositions for washing and cleansing agents

US4184975A · kind A · utility

16Cited by
7References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 14, 1977
Grant dateJan 22, 1980
Priority date
Expiry dateDec 14, 1997

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC11D3/128
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

A pourable agglomerated aluminosilicate builder composition comprising PA0 (A) from 20% to 70% by weight of at least one finely-divided, synthetically-produced, water-insoluble aluminosilicate compound containing at least some combined water and having a calcium binding power of at least 50 mg CaO/gm of anhydrous active substance and the formula on the anhydrous basis EQU (M.sub.2/n O).sub.x. Me.sub.2 O.sub.3.(SiO.sub.2).sub.y where M is a cation of the valence n, exchangeable with calcium, x is a number from 0.7 to 1.5, Me is aluminum or boron, and y is a number from 0.8 to 6, and PA0 (B) from 30% to 80% by weight of at least two water-soluble alkali metal salts containing water of crystallization selected from the group consisting of tripolyphosphates, pyrophosphates, orthophosphates, sulfates, carbonates, metasilicates and borates; as well as the process of production of the same.

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