发明名称 |
Method of reducing formaldehyde emissions from formaldehyde condensation polymers |
摘要 |
A method of reducing the formaldehyde emissions from formaldehyde condensation polymers is disclosed. A substance having two or more amide linkages, such as a polyacrylamide polymer is incorporated in the polymer solution immediately or shortly before use, the acrylamide polymer reacting with free formaldehyde in the solution or that generated as a result of hydrolytic breakdown of the formaldehyde condensation polymer. The incorporation of polyacrylamide polymers in a urea-formaldehyde resin solution used in the production of urea-formaldehyde insulating foams is of particular benefit.
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申请公布号 |
US4346181(A) |
申请公布日期 |
1982.08.24 |
申请号 |
US19810300037 |
申请日期 |
1981.09.08 |
申请人 |
BOARD OF REGENTS, UNIVERSITY OF WASHINGTON |
发明人 |
ALLAN, GEORGE G. |
分类号 |
C08L61/00;C08L61/24;(IPC1-7):C08J9/30 |
主分类号 |
C08L61/00 |
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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