Abstrakti
The invention relates to the use of betuline as a filler in paper or board, and to a method for producing paper or board. According to the invention, an aqueous slurry is made of betuline, followed by the addition of said slurry to the pulp during the production of paper or board, and removal of water from the paper web, and then the production of paper or board is continued in a conventional manner.
| Alkuperäiskieli | Englanti |
|---|---|
| Patenttinumero | WO2005090677 |
| IPC | D21H 17/ 06 A I |
| Prioriteetti päiväys | 19/03/2004 |
| Arkistointipäivä | 18/03/2005 |
| Tila | Julkaistu - 29 syysk. 2005 |
| OKM-julkaisutyyppi | H1 Myönnetty patentti |