| 发明名称 |
MAGNETIC RECORDING MEDIA HAVING A BRANCHED THERMOPLASTIC POLYURETHANE BINDER CONTAINING A POLYSILOXANE COMPONENT IN THE MAIN CHAIN |
| 摘要 |
Magnetic recording media consist of a nonmagnetic substrate and at least one magnetizable layer which is firmly applied thereon and is based on a polyurethane binder which may be crosslinked with polyisocyanate, not less than 50% by weight of the binder consisting of a low molecular weight branched polyureaurethane having OH-containing urea groups at the chain ends, and the sliding properties of the said binder being improved and its coefficient of friction reduced by incorporation of siloxane groups.
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| 申请公布号 |
US5082737(A) |
申请公布日期 |
1992.01.21 |
| 申请号 |
US19900571198 |
申请日期 |
1990.08.23 |
| 申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
BOBRICH, MICHAEL;ROLLER, HERMANN;LEHNER, AUGUST;KEPPELER, UWE;SUETTINGER, RUDOLF;LOCH, WERNER;LENZ, WERNER;SCHULZ, GUENTHER |
| 分类号 |
C08G18/12;C08G18/61;C08G18/65;C08G18/66;C08G18/76;C08L75/04;C09D5/23;C09D175/00;C09D175/04;G11B5/702 |
主分类号 |
C08G18/12 |
| 代理机构 |
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| 地址 |
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