Coloring composites
US3950180A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 2, 1974 |
| Grant date | Apr 13, 1976 |
| Priority date | — |
| Expiry date | Jul 2, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2004/80
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Novel and inexpensive coloring composites comprising inorganic substances as main component combined with organic basic colored compounds are provided. The inorganic substances are composed of at least one clay mineral selected from the group consisting of zeolite and montmorillonite. The combination of the inorganic substances with the organic basic colored compounds is based on ionic bond, and the combined quantity of the organic basic colored compounds amounts to 0.01-50%. Therefore, the coloring composites have a remarkably improved and stabilized coloring power and are also improved in such properties as thermal resistance, light resistance, acid resistance and the like. In addition, the coloring composites may also change in color according to the value of pH.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.