Correction stick
US5147457A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 12, 1990 |
| Grant date | Sep 15, 1992 |
| Priority date | — |
| Expiry date | Oct 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.