发明名称 |
Release coatings for dielectric substrates. |
摘要 |
<p>Disclosed are image release sheets which comprise a dielectric coated substrate and a silicone-urea block polymer coating for the dielectric substrate. The silicone-urea block polymer functions as a release coating when the image sheet is used in electrographic processes. Excellent transfer of an image from a donor element, comprising the silicone-urea block polymer as a release coating, to a receptor substrate occurs. In a preferred embodiment, a pH sensitive indicator such as thymolphthalein can be added to the release coating in order to monitor the thickness of the coating.</p> |
申请公布号 |
EP0443846(A2) |
申请公布日期 |
1991.08.28 |
申请号 |
EP19910301371 |
申请日期 |
1991.02.21 |
申请人 |
MINNESOTA MINING AND MANUFACTURING COMPANY |
发明人 |
BRANDT, PATRICIA J. A., C/O MINNESOTA MINING AND;WANG, PAUL J., C/O MINNESOTA MINING AND;FARM, RAYMOND J., C/O MINNESOTA MINING AND |
分类号 |
C08G18/61;C08G77/458;C09D175/00;C09D183/04;C09D183/10;G03G5/02;G03G5/147 |
主分类号 |
C08G18/61 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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