Patent · US Expired

Correction stick

US5147457A · kind A · utility

7Cited by
4References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 12, 1990
Grant dateSep 15, 1992
Priority date
Expiry dateOct 12, 2010

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC09D10/00
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

Correction stick comprising a gelatinizer, white pigments, dispersant, water-soluble or dispersible film-forming resin and a gelation modifier, said gelatinizer being alkali metal salts or ammonium salts of aliphatic carboxylic acids having carbon atoms of 8 to 36 and said gelation modifier being organic or inorganic salts which form univalent metallic positive ion in an aqueous solution such as sodium or potassium positive ion or sequestering agents or the mixture thereof with the organic or inorganic salts.

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