发明名称 |
ALIPHATISCHE UND CYCLOALIPHATISCHE TRIOL-POLY-CARBONATE, IHRE HERSTELLUNG UND VERWENDUNG |
摘要 |
<p>Aliphatic or cycloaliphatic polycarbonate-triols having a molecular weight of not more than 3,000, which contain hydrophobic segments and are liquid at room temperature are obtained by transesterifying an aryl carbonate with a primary aliphatic triol and a mixture of two diols, HOAOH and HOBOH, at least one of the radicals A or B being a hydrophobic radical, the proportion of the primary aliphatic triol is such that there is statistically one molecule of the said triol per polymer chain in the product, and the ratio of the diols being such that the polycarbonate-triol obtained is equivalent to a mixture of a% by weight of a polycarbonate derived from the triol and the diol HOAOH alone, and of b% by weight of a polycarbonate derived from the triol and the diol HOBOH alone, the percentages a and b corresponding to the following two conditions: 30%</=a%</=70% a%+b%=100%. Modified aminoplast resins can be obtained by reacting such polycarbonate-triols with etherified melamine-formaldehyde condensates.</p> |
申请公布号 |
DE2754750(A1) |
申请公布日期 |
1978.06.22 |
申请号 |
DE19772754750 |
申请日期 |
1977.12.08 |
申请人 |
SOCIETE NATIONALE DES POUDRES ET EXPLOSIFS |
发明人 |
JOSEPH PASSAGNE,CLAUDE GILLES IGNACE;CHARLES LIPPLER,REMY RENE;GEORGES SENET,JEAN-PIERRE;PLAZANET,JACQUES |
分类号 |
C08L61/00;C08G12/00;C08G12/32;C08G63/00;C08G63/64;C08G64/00;C08G64/02;C08G64/20;C08G64/30;C08L61/20;C08L67/00;C08L69/00;C09D169/00;(IPC1-7):C07C69/96;C07C68/00;C08G63/62 |
主分类号 |
C08L61/00 |
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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