| PATENT ASSIGNEE'S COUNTRY | Finland |
| UPDATE | 06.99 |
| PATENT ASSIGNEE | Metsa-Serla Oy |
| PATENT CLAIMS |
Pulp mfg having high brightness from fibrous raw material - Determining the av. phenol compd content of specimens of pulpwood species - Selecting a specimen having phenol compd content lower than said av. content - Producing paper pulp by delignifying fibrous raw material of selected specimen, wherein pulp that is produced has a brightness which is higher than brightness obtained from said specimen that have > av. content of phenol compd |
| PATENT PHOTOCOPY | Available on request |
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