发明名称 |
Pressure sensitive carbonless copying systems |
摘要 |
This invention relates to sheet materials, on which a coating is applied and which are used for pressure sensitive carbonless copying systems, wherein at least one of the components responsible for color development in the coating is a predominantly white four layer structured lamelar ground chlorite mineral having an iron content of about 0.5% to 8% by weight preferably of about 3% by weight. The components responsible for color development in the coating are preferably composed by 40 to 60% by weight of said ground chlorite mineral and 60 to 40% by weight of activated montmorillonite or bentonite or smectite clay.
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申请公布号 |
US4461494(A) |
申请公布日期 |
1984.07.24 |
申请号 |
US19810269436 |
申请日期 |
1981.06.02 |
申请人 |
STANDARD OIL COMPANY (INDIANA) |
发明人 |
PENNE, ROGER A. |
分类号 |
B41M5/124;B41M5/155;(IPC1-7):B41M5/22 |
主分类号 |
B41M5/124 |
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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