Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof
Reexamination Certificate
2005-07-12
2005-07-12
Zucker, Paul A. (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acids and salts thereof
Reexamination Certificate
active
06916955
ABSTRACT:
A process is provided for synthesizing metal salts of perfluorinated polyethers containing at least one carboxylic acid group. The polymeric salts so provided are effective as anti-wetting and corrosion-protective agents. The metal salts of perfluorinated polyether acids may be used to prepare corrosion-protected substrates, including magnetic recording disks and magnetic recording heads.
REFERENCES:
patent: 3367868 (1968-02-01), Skehan
patent: 4169904 (1979-10-01), Czornyj et al.
patent: 4659633 (1987-04-01), Yamaguchi et al.
patent: 4757145 (1988-07-01), Caporiccio et al.
patent: 4786544 (1988-11-01), Saito
patent: 4816334 (1989-03-01), Yokoyama et al.
patent: 5000864 (1991-03-01), Strepparola et al.
patent: 5030494 (1991-07-01), Ahlert et al.
patent: 5049410 (1991-09-01), Johary et al.
patent: 5091249 (1992-02-01), Nishikawa et al.
patent: 5124058 (1992-06-01), Corti et al.
patent: 5211861 (1993-05-01), Lafratta et al.
patent: 5435927 (1995-07-01), Beckwith et al.
patent: 5453539 (1995-09-01), Kondo et al.
patent: 5456980 (1995-10-01), Murakami et al.
patent: 5525392 (1996-06-01), Baum et al.
patent: 5858536 (1999-01-01), Yanagisawa
patent: 6071609 (2000-06-01), Furutani et al.
patent: 6093495 (2000-07-01), Falcone
patent: 01-159830 (1989-06-01), None
Dai Qing
Kasai Paul Haruo
Tang Wing Tsang
International Business Machines
Reed Dianne E.
Reed Intellectual Property Law Group
Thibault Harry G.
Zucker Paul A.
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