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1. (WO2001003855) METHOD AND APPARATUS FOR DEACIDIFICATION OF PAPERS AND BOOKS
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2001/003855 International Application No.: PCT/US2000/018978
Publication Date: 18.01.2001 International Filing Date: 12.07.2000
Chapter 2 Demand Filed: 12.02.2001
IPC:
B41M 7/00 (2006.01) ,D21H 25/18 (2006.01)
Applicants: ZICHERMAN, Joeseph, B.[US/US]; US
PERKINS, Donald[US/US]; US
Inventors: KUNDROT, Robert; US
Agent: DERGOSITS, Michael, E.; Dergosits & Noah LLP Four Embarcadero Center, Suite 1150 San Francisco, CA 94111, US
Priority Data:
09/352,37513.07.1999US
Title (EN) METHOD AND APPARATUS FOR DEACIDIFICATION OF PAPERS AND BOOKS
(FR) PROCEDE ET APPAREIL DE DESACIDIFICATION DE PAPIERS ET DE LIVRES
Abstract: front page image
(EN) Lignocellulosic material (201) such as paper are deacidied by exposure to acoustically (109, 111) agitated submicron alkaline particles (119) which adhere to the materials being treated. The alkaline particles neutralize the acidity of the paper (201) and counteract the effects of acid degradation. The alkaline deacidification process does not employ volatile compounds or liquids and does not damage the paper.
(FR) Des matières lignocellulosiques (201) tel que le papier sont désacidifiées par exposition à des particules (119) alcalines agitées inférieures au micron sur le plan acoustique (109, 111) qui adhèrent aux matières en cours de traitement. Les particules alcalines neutralisent l'acidité du papier (201) et annihilent les effets de la dégradation acide. Le procédé de désacidification alcaline n'a pas recours aux composés volatiles ou aux liquides, et n'endommage pas le papier.
Designated States: CA, JP
European Patent Office (EPO) (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: English (EN)