Abrasive compositions

US4440745A · kind A · utility

Assignee

• Max-Planck-Gesellschaft zur Föderung der Wissenschaften e.V. · US

Inventors

• Helmut Schmidt · Riegelsberg, DE
• Alfred Kaiser · Kist, DE

Key dates

• Filing date: Dec 17, 1981
• Grant date: Apr 3, 1984
• Expiry date: Dec 17, 2001

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K3/1454
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Abrasive compositions comprising a porous, organo-modified silicic acid hropolycondensate as abrasive and one or more conventional components selected from the group of carriers, adjuvants and active substances such as pharmaceuticals, disinfectants, insecticides, bactericides, etc. The compositions are useful in medical and cosmetic applications, such as in the treatment of acne or as a tooth paste, and also in various technical and industrial fields, e.g., as a polishing or cleansing material.