Size composition for papermaking
US5201944A · kind A · utility
25Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 30, 1991 |
| Grant date | Apr 13, 1993 |
| Priority date | — |
| Expiry date | May 30, 2011 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H17/62
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a size composition which shows an excellent sizing effect in neutral to weakly acidic papermaking. Alkanol tertiary amine and fortified rosin, incorporated in the size composition of the present invention, even when prepared as dispersions using a dispersant, are extremely poor in sizing performance in the neutral pH range, whereas the size composition obtained by mixing these components in a ratio according to the present invention and dispersing them using a surfactant specified by the present invention offers an excellent sizing in the neutral to weakly acidic pH range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.