Alkenyl succinic anhydride emulsion
US5176748A · kind A · utility
9Cited by
17References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 21, 1991 |
| Grant date | Jan 5, 1993 |
| Priority date | — |
| Expiry date | May 21, 2011 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H21/16
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In sizing paper and paperboard with an aqueous ASA sizing system, a dispersal is formed comprising an ASA, a water-immiscible carrier, and a cationic water-soluble dispersing agent and when desired, a non-ionic surfactant. The dispersal can be shipped and stored for a prolonged time until use. The dispersal is added to water to form an oil-in-water sizing emulsion. This prepared emulsion is suitable for sizing paper and paperboard directly without the need for additional emulsifying agents or expensive equipment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.