发明名称 |
FOERFARANDE FOER FRAMSTAELLNING AV SMAO KAPSLAR. |
摘要 |
A mixture of polyacrylic acid and polystyrene sulphonic acid or a salt thereof are used in a process for manufacturing minute capsules by in situ polymerisation of a urea or melamine formaldehyde polymeric material in an aqueous manufacturing vehicle. The resulting capsules may be used in pressure-sensitive copying materials. |
申请公布号 |
FI74241(C) |
申请公布日期 |
1988.01.11 |
申请号 |
FI19840000230 |
申请日期 |
1984.01.20 |
申请人 |
APPLETON PAPERS,INC |
发明人 |
BROWN,ROBERT WILLIAM;BOWMAN,RICHARD P. |
分类号 |
B01J13/02;B01J13/18;B41M5/165;(IPC1-7):B41M5/12 |
主分类号 |
B01J13/02 |
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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