发明名称 |
Crosslinked vinyl alcohol/vinylamine copolymers for dry end paper addition |
摘要 |
An improved papermaking process has been developed to enhance the properties of the resultant paper or paper-type products. The process involves adding a polyvinyl alcohol/vinylamine copolymer along with a crosslinking agent at the dry end step of a conventional papermaking process. Improvements in the properties of the resultant paper products are observed, especially at low levels of copolymer addition.
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申请公布号 |
US5281307(A) |
申请公布日期 |
1994.01.25 |
申请号 |
US19930003760 |
申请日期 |
1993.01.13 |
申请人 |
AIR PRODUCTS AND CHEMICALS, INC. |
发明人 |
SMIGO, JOHN G.;ROBESON, LLOYD M.;DAVIDOWICH, GEORGE;MILLER, GERALD D.;CARROLL, WILLIAM E. |
分类号 |
D21H17/34;D21H17/06;D21H17/15;D21H17/36;D21H17/47;D21H17/49;D21H17/52;D21H21/18;D21H23/76;(IPC1-7):D21H17/33 |
主分类号 |
D21H17/34 |
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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