发明名称 |
Compositions for imparting temporary wet strength to paper. |
摘要 |
<p>A composition for imparting temporary wet strength to paper comprising a solution containing from about one percent to about ten percent by weight of a vinylamide polymer having sufficient glyoxal-reactive amide substituents and -CHOHCHO substituents to be thermosetting, in a solvent selected from the group consisting of water, water-miscible solvents containing free hydroxyl functionality, and mixtures thereof, to which solution has been added a sufficient quantity of a strong base for reaction therewith to adjust the pH of the aqueous solution to a value of from about 8.5 to about 11. Also disclosed is a process for imparting temporary wet strength to paper by application thereto of a wet strengtheningly effective amount of such aqueous composition, and the paper product of such process.</p> |
申请公布号 |
EP0133699(A2) |
申请公布日期 |
1985.03.06 |
申请号 |
EP19840109360 |
申请日期 |
1984.08.07 |
申请人 |
AMERICAN CYANAMID COMPANY |
发明人 |
GUERRO, GERALD JOSEPH;PROVERB, ROBERT JOSEPH;TARVIN, ROBERT FLOYD |
分类号 |
D21H17/39;D21H21/20;(IPC1-7):D21H3/38 |
主分类号 |
D21H17/39 |
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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