Hydrophobic cationic dispersions stabilized by low molecular weight maleimide copolymers, for paper sizing
US6830657B1 · kind B1 · utility
10Cited by
9References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2002 |
| Grant date | Dec 14, 2004 |
| Priority date | — |
| Expiry date | Mar 4, 2022 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H17/37
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention concerns a method for obtaining an aqueous dispersion of hydrophobic polymers dispersed in the form of particles with mean diameter less than 100 nm stablized soley with a macromolecular surfactant based on low molecular weight styrene/maleic anhydride imide copolymer. The invention also concerns the use of said dispersion for treating and sizing paper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.