Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1994-03-17
1996-02-06
Michl, Paul R.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
524495, 524496, 524507, 524568, 427130, 427131, 428422, 428694, 428900, C08K 521, C08K 502, B32B 2700, B32B 2740
Patent
active
054896436
ABSTRACT:
Described is a coating composition for the formation of a back coat layer in a magnetic recording medium, which comprises carbon black, a binder and a solvent. The binder is composed of an acrylic-polymer-modified polyurethane resin and a vinyl chloride copolymer having at least one type of terminal groups selected from hydroxyl groups, carboxyl groups or tertiary amino groups.
REFERENCES:
patent: 4735985 (1988-04-01), Oien
patent: 5330784 (1994-07-01), Bobrich et al.
Higuchi Toshiaki
Hirose Setsuo
Konno Yoshinori
Nakajima Masatoshi
Sugawara Eiichi
Asinovsky Olga
Dainichiseika Color & Chemicals Mfg. Co. Ltd.
Michl Paul R.
Ukima Coulor & Chemicals Mfg. Co., Ltd.
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