Stable amphoteric latices of copolymers based on conjugated dienes
US4525519A · kind A · utility
7Cited by
17References
32Claims
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Key dates
| Filing date | Jan 25, 1984 |
| Grant date | Jun 25, 1985 |
| Priority date | — |
| Expiry date | Jan 25, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F265/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Stable amphoteric latices based on conjugated dienes formed by preparing an amphoteric aqueous dispersion of particles by reacting at least one unsaturated nitrogen compound capable of being hydrolyzed in an acid or alkaline medium with an aqueous emulsion reaction medium, containing cationic species, and polymerizing, in the aqueous dispersion, without prior neutralization of the dispersion, at least one conjugated diene or a mixture of conjugated dienes and at least one non-ionic monomer in the presence of an initiator selected from the group consisting of an uncharged initiator and a cationic-charge-generating initiator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.