发明名称 |
Heat collapsing foam system |
摘要 |
A process of treating sheet materials with an aqueous treating composition is disclosed in which surfactants are incorporated in the composition to permit it to be foamed with gas to provide a foam which is stable in the form of a thin layer long enough to be handled, but which will collapse completely when heated. This is preferably done by employing a mixture of water soluble surfactant to stabilize the foam and water insoluble defoamer to break the foam when heat is applied. This foam is applied to a surface of the sheet material to provide stable foam thereon, and heat is employed to simultaneously cause the foam to collapse and dry the composition.
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申请公布号 |
US4326904(A) |
申请公布日期 |
1982.04.27 |
申请号 |
US19800152696 |
申请日期 |
1980.06.02 |
申请人 |
NATIONAL STARCH AND CHEMICAL CORPORATION |
发明人 |
ECKERT, RENE A.;SCHMUCK, GUENTER E. |
分类号 |
B05D3/02;B05D5/00;D06N3/00;(IPC1-7):B32B31/26;B05D3/00 |
主分类号 |
B05D3/02 |
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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