Elastomeric lubricants for magnetic recording media

Coating processes – Direct application of electrical – magnetic – wave – or... – Polymerization of coating utilizing direct application of...

Reexamination Certificate

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C427S502000, C427S508000

Reexamination Certificate

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06861102

ABSTRACT:
Elastomeric fluoropolyether lubricant topcoats are formed on a protective overcoat of a magnetic recording medium. Embodiments include forming a an amorphous carbon layer having a thickness of no greater than about 25 Å as the protective overcoat and polymerizing a fluorpolyether having one or more acrylate groups on the amorphous carbon layer to form the elastomeric fluoropolyether topcoat lubricant directly on the protective overcoat.

REFERENCES:
patent: 3025279 (1962-03-01), Barr
patent: 3104983 (1963-09-01), Tarwater et al.
patent: 3810874 (1974-05-01), Mitsch et al.
patent: 3814741 (1974-06-01), Caporiccio et al.
patent: 4132681 (1979-01-01), Field et al.
patent: 4404247 (1983-09-01), Dominguex-Burguette et al.
patent: 4446193 (1984-05-01), Afzali-Ardakani et al.
patent: 4486500 (1984-12-01), Naruo et al.
patent: 4526833 (1985-07-01), Burguette et al.
patent: 4543275 (1985-09-01), Akashi et al.
patent: 4569962 (1986-02-01), Burguette et al.
patent: 4588656 (1986-05-01), Kiamoto et al.
patent: 4642246 (1987-02-01), Janssen et al.
patent: 4645703 (1987-02-01), Suzuki et al.
patent: 4671999 (1987-06-01), Burguette et al.
patent: 4681925 (1987-07-01), Strepparola et al.
patent: 4686146 (1987-08-01), Karle et al.
patent: 4699835 (1987-10-01), Takeuchi et al.
patent: 4701375 (1987-10-01), Nishimatsu et al.
patent: 4705699 (1987-11-01), Burguette et al.
patent: 4721640 (1988-01-01), Kato et al.
patent: 4758471 (1988-07-01), Arioka et al.
patent: 4828899 (1989-05-01), Arioka et al.
patent: 4835032 (1989-05-01), Arioka et al.
patent: 4849291 (1989-07-01), Yacobucci et al.
patent: 4880687 (1989-11-01), Yokoyama et al.
patent: 4960609 (1990-10-01), Homola et al.
patent: 4992316 (1991-02-01), Ogawa
patent: 5030478 (1991-07-01), Lin et al.
patent: 5049410 (1991-09-01), Johary et al.
patent: 5055359 (1991-10-01), Tsuno et al.
patent: 5080982 (1992-01-01), Yamamoto et al.
patent: 5118525 (1992-06-01), Chino et al.
patent: 5143787 (1992-09-01), Frew et al.
patent: 5178954 (1993-01-01), Norman et al.
patent: 5188747 (1993-02-01), Kai et al.
patent: 5232791 (1993-08-01), Kohler et al.
patent: 5266724 (1993-11-01), Kai et al.
patent: 5279877 (1994-01-01), Uchiyama et al.
patent: 5331487 (1994-07-01), Gregory et al.
patent: 5409738 (1995-04-01), Matsunuma et al.
patent: 5432039 (1995-07-01), Shimokawa et al.
patent: 5534322 (1996-07-01), Ueyama et al.
patent: 5543203 (1996-08-01), Tani et al.
patent: 5545478 (1996-08-01), Lin et al.
patent: 5591481 (1997-01-01), Takahasi et al.
patent: 5618617 (1997-04-01), Uchida et al.
patent: 5631041 (1997-05-01), Kanzizuka et al.
patent: 5631081 (1997-05-01), Lin et al.
patent: 5661618 (1997-08-01), Brown et al.
patent: 5783320 (1998-07-01), Shimazaki et al.
patent: 5858477 (1999-01-01), Veerasamy et al.
patent: 5858536 (1999-01-01), Yanagisawa
patent: 5874169 (1999-02-01), Falcone
patent: 5912061 (1999-06-01), Uchida et al.
patent: 5919560 (1999-07-01), Nishimori
patent: 6071609 (2000-06-01), Furutani et al.
patent: 6096385 (2000-08-01), Yong et al.
patent: 6096694 (2000-08-01), Tei et al.
patent: 6099762 (2000-08-01), Lewis
patent: 6110584 (2000-08-01), Hiratsuka et al.
patent: 6150001 (2000-11-01), Hedrick et al.
patent: 6238780 (2001-05-01), Wu et al.
Lee et al., May 1993, “Enhanced Tribological Performance of Rigid Disk by Using Chemically Bonded Lubricant”, J. Vac. Sci. Technol. A, vol. 11(3), pp. 711-714.
Tian et al., Jul. 1993, “Tribological Characteristics of Liquid Lubricant on Magnetic Disks Treated by Far-UV Radiation” J. Tribology, vol. 115, pp. 400-405.
Vurens et al., Jan. 1993 “The Mechanism of Ultraviolet Bonding of Perfluoropolyether Lubricants” IEEE Transactions on Magnetics, vol. 29, pp. 282-285.

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