Waterfast ink jet compositions and process
US4789400A · kind A · utility
56Cited by
2References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 10, 1987 |
| Grant date | Dec 6, 1988 |
| Priority date | — |
| Expiry date | Jul 10, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/30
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An improved ink jet composition comprised of a major amount of water, a hydroxypropylated polyethyleneimine with a weight average molecular weight of from about 1,000 to about 10,000, and a dye component; and wherein the ink has a viscosity of from about 1 to about 5 centipoise.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.