发明名称 |
Borate solution soluble polyvinyl alcohol films. |
摘要 |
<p>Conventional polyvinyl alcohol envelopes will not readily dissolve in wash water which has a significant borate concentration and a pH frequently encountered in wash liquors. Herein, such films are rendered sufficiently soluble in such solutions. In the preferred embodiment this is done by utilizing a polyvinyl alcohol film wherein at least a portion of the polyvinyl alcohol has a number average molecular weight below about 50,000, or a polyvinyl alcohol film containing a polyhydroxy compound having a binding constant with borate of at least about 800M<-><2>, or utilizing a polyvinyl alcohol film having an acid having an acid dissociation constant of 10<-><9> M or larger; or a polyvinyl alcohol film containing mixtures thereof.</p> |
申请公布号 |
EP0079712(A1) |
申请公布日期 |
1983.05.25 |
申请号 |
EP19820305772 |
申请日期 |
1982.10.29 |
申请人 |
THE CLOROX COMPANY |
发明人 |
KAUFMANN, EDWARD J.;SUDBURY, BARRY A. |
分类号 |
C08L29/00;C08J5/18;C08J11/00;C08K5/05;C08L29/04;C08L33/00;C08L33/02;C11D17/04;(IPC1-7):11D17/04;11D3/37 |
主分类号 |
C08L29/00 |
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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