Paint used in forming a magnetic recording medium backcoat layer

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United States of America Patent

PATENT NO 5868825
SERIAL NO

08780689

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Abstract

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A magnetic recording medium comprising a magnetic layer, a backing layer, and a support sandwiched between the magnetic layer and the backing layer. The backing layer is made form a coating composition comprising a filler, binder, and a silicone compound represented by the following formula (I): ##STR1## wherein groups A, B, and D each independently represent --CH.sub.3 or a group -X-Y-Z, in which X represents a C1-C11 alkylene or --(CH.sub.2).sub.3 NHCO--, Y represents a specific aliphatic group, alicyclic group, or an aromatic group, and Z represents --OH, m is an integer from 4 to about 150, and n is an integer from 1 to 6, the compound of formula (I) containing at least one -X-Y-Z group, with the ratio of the number of groups -X-Y-Z to m being from 1:3 to 1:about 30.

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Patent Owner(s)

Patent OwnerAddress
TOYO INK MANUFACTURING CO LTDTOKYO JAPAN TOKYO METROPOLIS

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hara, Yoshio Tokyo, JP 42 225
Kuwahara, Masami Tokyo, JP 7 39
Yabuno, Michio Tokyo, JP 3 4

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