Indicator compositions
US4160375A · kind A · utility
3Cited by
6References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 13, 1978 |
| Grant date | Jul 10, 1979 |
| Priority date | — |
| Expiry date | Mar 13, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B67/0083
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A water washable, wash resistant biodegradable dye penetrant composition is described. It comprises one or more dyes and at least 70% of a substantially linear primary alcohol ethoxylate containing 2 to 4.5 ethoxy groups per molecule.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.