发明名称 |
PROCEDE DE FABRICATION D'UN POLYVINYLBUTYRAL PLASTIFIE POUR LE COLLAGE D'UNE EMBASE SUR UN VITRAGE ET PRODUITS OBTENUS |
摘要 |
The polyvinylbutyral is obtained by reaction of butyraldehyde with polyvinyl alcohol exhibiting a degree of hydrolysis higher than 95 % and a viscosity higher than 50 centipoises, in the presence of an acidic catalyst and of an emulsifier, the quantity of butyraldehyde being such that the hydroxyl content of the polyvinylbutyral obtained is between 22 and 26 %. |
申请公布号 |
FR2613370(B1) |
申请公布日期 |
1989.10.20 |
申请号 |
FR19870004620 |
申请日期 |
1987.04.02 |
申请人 |
SAINT GOBAIN VITRAGE SA |
发明人 |
ROBERT DEGEILH;DANIEL DAGES |
分类号 |
C08F8/28;C08K5/10;C08L29/14;(IPC1-7):C08F116/06;C03C27/04 |
主分类号 |
C08F8/28 |
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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