| PATENT ASSIGNEE'S COUNTRY | Sweden. UK |
| UPDATE | 05.00 |
| PATENT ASSIGNEE |
Allied Colloids (UK) CDM AB (Sweden) |
| PATENT CLAIMS |
- Forming an aq cellulosic suspension - Adding polymeric retention aid to suspension to form flocs - Degrading the flocs by shearing the suspension to form microflocs - Aggregating the microflocs by adding to the suspension an aq compn of anionic bridging coagulant - Draining the aggregated suspension to form a sheet - Drying the sheet Wherein a cationic polymer is included in the suspension before the shearing & an anionic dye, pigment or optical brightener agent for the paper or paper board is added to the suspension with the aq compn of anionic bridging coagulant |
| PATENT PHOTOCOPY | Available on request |
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