Paint used in forming a magnetic recording medium backcoat layer

Details Paint used in forming a magnetic recording medium backcoat layer Paint used in forming a magnetic recording medium backcoat layer

1997-01-08

1999-02-09

Resan, Stevan A.

Compositions: coating or plastic

Coating or plastic compositions

Carbohydrate or derivative containing

10616957, 1061711, 10628711, 10628714, 10628715, 428694BB, 427129, C09D 700

Patent

active

058688250

ABSTRACT:
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.

REFERENCES:
patent: 4812518 (1989-03-01), Haubennestel et al.
patent: 5262492 (1993-11-01), Hanada et al.

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