Compositions for paints and printing inks
US4244862A · kind A · utility
15Cited by
7References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 1, 1977 |
| Grant date | Jan 13, 1981 |
| Priority date | — |
| Expiry date | Nov 1, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/106
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Block copolymers of a vinyl-substituted aromatic hydrocarbon and a conjugated diene, having alkali metal atoms linked to at least one terminal of the polymer chain are obtained by polymerizing vinyl-substituted aromatic hydrocarbon and conjugated diene monomers with use of an alkali metal or organo alkali metal initiator. The block copolymer thus obtained is treated with a polar reactant to introduce polar groups into the polymer chain terminal. Compositions for paints and printing inks are prepared by incorporating inorganic pigments into the block copolymer having the terminal polar group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.