Patent · US Expired

Visible action gel toner

US4148875A · kind A · utility

19Cited by
5References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 28, 1977
Grant dateApr 10, 1979
Priority date
Expiry dateMar 28, 1997

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/2987
  • WIPO fieldPharmaceuticals
  • WIPO sectorChemistry

Abstract

A visible action gel toner composition having a carrier and an encapsulated active base. The carrier includes hectorite clay and a peptizer for the clay. The encapsulated active base includes hectorite clay, a peptizer for the clay, and a polar group affording compound.

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