发明名称 |
Pressure sensitive copying paper |
摘要 |
A condensate free from stickiness and exhibiting an excellent initial color-formability when used as color developer of pressure sensitive copying paper can be obtained by reacting p-hydroxybenzoic acid and one p-alkyl-substituted phenol or a mixture of two or more p-alkyl-substituted phenols with formaldehyde in the presence of an acid catalyst and then directly taking out the condensate into cold water without any procedure such as dehydration, concentration, etc.
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申请公布号 |
US4461495(A) |
申请公布日期 |
1984.07.24 |
申请号 |
US19820396372 |
申请日期 |
1982.07.08 |
申请人 |
MITSUBISHI PAPER MILLS, LTD.;MITSUBISHI GAS CHEMICAL CO |
发明人 |
NAKASATO, YUKIYA;KURAMOTO, ATSUO;MORISHITA, SADAO;HIRAISHI, SHIGETOSHI |
分类号 |
B41M5/155;(IPC1-7):B41M5/16 |
主分类号 |
B41M5/155 |
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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