发明名称 |
AGENTE A PROVA DE CHAMA,TERMOESTAVEL,PARA COPOLIESTERES,PROCESSO PARA PRODUCAO DO MESMO,COMPOSICOES DE COPOLIESTERES,PROCESSO PARA PRODUCAO DESTAS COMPOSICOES E CORPOS MODELADOS PRODUZIDOS DAS DITAS COMPOSICOES |
摘要 |
<p>The invention is concerned with a thermostable flameproofing agent for copolyester compositions, which comprises the reaction product of 1 mole of a dialkyl diester of an alkali dicarboxyaryl-sulphonate having the general formula: wherein R' represents an alkyl radical containing from 1 to 3 carbon atoms and M represents an alkali metal atom, with 1 to 2 moles of at least one tetrabrominated diol having the general formula: wherein a and b represent, independently one of the other, a whole number from 1 to 3 inclusive; the reaction is effected in the presence of a transesterification catalyst selected from the group consisting of compounds of Zn, Co, Ca, Sn, Ti and Mn. The flame-proofing agent of the invention imparts to polyester materials, besides improved self-extinguishing properties, a considerable thermostability with a substantial improvement of the resistance to the propagation of flame.</p> |
申请公布号 |
BR7606987(A) |
申请公布日期 |
1977.09.06 |
申请号 |
BR19767606987 |
申请日期 |
1976.10.19 |
申请人 |
SNIA VISCOSA SOC NAZIONALE IND APPLICAZIONI VISCOSA SPA |
发明人 |
QUAGLIA G;CIAPERONI A;DALL ASTA G |
分类号 |
C08L67/00;C07C309/58;C08G63/66;C08G63/68;C08G63/688;C08K5/03;C09K21/08;C09K21/14;D01F6/84;D01F6/92;(IPC1-7):C08L67/00;C09K3/28 |
主分类号 |
C08L67/00 |
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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