Preflocculated filler compositions for use in the manufacture of paper
US4174998A · kind A · utility
12Cited by
8References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 15, 1977 |
| Grant date | Nov 20, 1979 |
| Priority date | — |
| Expiry date | Feb 15, 1997 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H17/69
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A preflocculated filler composition for use in paper comprising a pigment, a starch phosphate and an organic polymeric retention aid such as a polyacrylamide, the combined weight of starch phosphate and organic polymeric retention aid on a solids basis being from 0.1 to 20 percent of the weight of the pigment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.