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D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
D21H17/62—Rosin; Derivatives thereof
FR2686D1902-12-191903-04-29Procédé d'encollage des papiers et cartons
ExpiredFR2686E
(fr)
Procédé pour la préparation des matières premières et des matières anciennes (cellulose, rognures de bois, papier imprimé ou couvert d'écriture, carton usagé, etc.), pour la fabrication du papier, des substances analogues au papier, des cartons, etc., et appareil pour l'exécution de ce procédé