发明名称 |
Production of radiation curable microcapsular coating compositions, pressure-sensitive transfer paper and its production |
摘要 |
The invention relates to a process for producing a radiation curable coating composition containing microcapsules having a hydrophobic liquid core as follows: An emulsion containing droplets of hydrophobic emulsion component dispersed in a hydrophilic liquid component is prepared. The hydrophobic emulsion component comprises a hydrophobic liquid and a first wall-forming material soluble therein and capable of reacting by condensation polymerization with a second wall-forming material to form a polymeric capsule wall which is substantially insoluble in, and impermeable to, the hydrophilic and hydrophobic emulsion components. The hydrophilic emulsion component comprises an emulsifier and a radiation curable hydrophilic liquid which comprises water and at least one radiation curable polar compound. The emulsion also contains the second wall-forming material. The emulsion is subjected, with stirring, to temperature conditions for a period of time sufficient to react the first and second wall-forming materials to form a dispersion of microcapsules in the hydrophilic emulsion component. The radiation curable dispersion containing a photoinitiator can be coated on a paper substrate and set by subjection to a combination of ultraviolet and infrared radiation for a period of time sufficient to polymerize the radiation curable hydrophilic liquid to a tack-free resinous film on the paper substrate.
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申请公布号 |
US4228216(A) |
申请公布日期 |
1980.10.14 |
申请号 |
US19780912376 |
申请日期 |
1978.06.05 |
申请人 |
THE MEAD CORPORATION |
发明人 |
AUSTIN, ROBERT A.;SHACKLE, DALE R. |
分类号 |
B41M5/165;(IPC1-7):B32B3/26;B05D3/06;B41M3/12;C09D11/00 |
主分类号 |
B41M5/165 |
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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