Polymeric compositions and their production and uses
US8697790B2 · kind B2 · utility
2Cited by
4References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2012 |
| Grant date | Apr 15, 2014 |
| Priority date | — |
| Expiry date | Aug 8, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2201/54
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A composition includes a dispersion, having an aqueous phase containing a dissolved water soluble cationic coagulant polymer and if needed a dissolved inorganic salt. The aqueous phase further contains a dispersed water soluble flocculant polymer, wherein the water soluble flocculant polymer is formed of a water soluble ethylenically unsaturated monomer or monomer blend which are polymerized in the aqueous phase. The water soluble cationic coagulant polymer is cationic poly(alkyleneamine), which is the reaction product of the following reaction:H2N—(CH2)m—NR—(CH2)m—NH2+Cl—CH2CH2—Cl,
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.