发明名称 |
Boric anhydride solutions and their use as hardeners of resols |
摘要 |
Concentrated boric anhydride solutions containing more than 5% of boric anhydride in an organic solvent selected from mono or polyalcohols, trialkylborate and/or dialkylacetal when the solvent also contains an acid selected from sulfuric acid and/or aromatic acids. These solutions are used as hardeners of formo-phenolic resols, more particularly for the manufacture of laminates comprising glass fibers and formo-phenolic resols.
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申请公布号 |
US4323667(A) |
申请公布日期 |
1982.04.06 |
申请号 |
US19810227308 |
申请日期 |
1981.01.22 |
申请人 |
SOCIETE CHIMIQUE DES CHARBONNAGES SA |
发明人 |
MEYER, NICOLAS;FOULON, RAYMOND |
分类号 |
C09K3/00;B01F1/00;C08K3/38;C08K5/55;C08L61/00;C08L61/04;C08L61/10;(IPC1-7):C08G8/32;C08G8/36 |
主分类号 |
C09K3/00 |
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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