Stabilized emulsion inks
US4059554A · kind A · utility
21Cited by
6References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 28, 1976 |
| Grant date | Nov 22, 1977 |
| Priority date | — |
| Expiry date | May 28, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/106
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Stabilized alcohol or water in oil ink emulsions are provided comprising: a pigment, from 20 to 40% by weight resin of a block or graft copolymer having one type of polar segment miscible with water and alkyl alcohols of from 2 to 6 carbon atoms, and another type of non-polar segment which can be absorbed on the pigment and is miscible with the non-polar components of the ink, said copolymer having a number average molecular weight of from 20,000 to 40,000; and a vehicle for said resin and pigment comprising polar and non-polar solvents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.