发明名称 |
Process for preparing microcapsules by polymerization of urea and formaldehyde in the presence of gum arabic |
摘要 |
A capsule solution is prepared by polymerizing urea and formaldehyde in the presence of gum arabic to thereby form a urea-formaldehyde resin wall around a hydrophobic oily solution. The use of gum arabic reduces the viscosity of the capsule solution, the capsule solution which is obtained is particularly suitable for preparing pressure sensitive recording sheets.
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申请公布号 |
US4221710(A) |
申请公布日期 |
1980.09.09 |
申请号 |
US19790012088 |
申请日期 |
1979.02.14 |
申请人 |
FUJI PHOTO FILM CO., LTD. |
发明人 |
HOSHI, YOSHIYUKI;MATSUKAWA, HIROHARU |
分类号 |
B01J13/18;B41M5/165;(IPC1-7):C08L5/00 |
主分类号 |
B01J13/18 |
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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