Patent · US Expired

Process for the stabilization of sodium percarbonate

US4178351A · kind A · utility

10Cited by

2References

9Claims

0Family size

Assignee

Deutsche Gold- und Silber-Scheideanstalt Vormals Roessler

Inventors

Hans Klebe · Rheinfelden (Baden), DE
Gerd Knippschild · Bad Nauheim, DE

Key dates

Filing date	Oct 16, 1978
Grant date	Dec 11, 1979
Priority date	—
Expiry date	Oct 16, 1998

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD06L4/12
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Sodium percarbonate is stabilized with highly dispersed silica. The sodium percarbonate containing 1 to 10 weight % of water is mixed with the silica and subsequently dried. The highly dispersed silica has an average particle size of 2-100 microns, preferably 7-20 microns. The product is sodium percarbonate particles encased by a sodium silicate jacket.

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