发明名称 |
USE OF A COMPOSITION BASED ON POLYOL-TREATED SILICON DIOXIDE AS ANTIBLOCKING AGENT, ANTIBLOCKING AGENT AND PROCESS FOR ITS PRODUCTION |
摘要 |
The use of a composition based on silicon dioxide as antiblocking agent is described which is characterized in that it has silicon dioxide having a particle size of 2 to 8 .mu.m, a specific surface of 150 to 850 m2/g and a specific pore volume of 1.4 to 2.0 ml/g which has been treated with polyol. This silicon dioxide can be used together with a slip agent as combined antiblocking agent and slip agent. The working-in of the antiblocking agent or of the combined antiblocking agent and slip agent into a polymer is preferably in the form of a masterbatch. A preferred antiblocking agent contains as polyol ethoxylated pentaerythritol in which the pentaerythritol/ethoxy ratio lies in the range from 1:0.5 to 1:25. The antiblocking agent can be obtained by micronizing silicon dioxide to the given particle size and impregnating it with the polyol.
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申请公布号 |
CA2209566(A1) |
申请公布日期 |
1996.07.25 |
申请号 |
CA19962209566 |
申请日期 |
1996.01.17 |
申请人 |
GRACE GMBH |
发明人 |
LUERS, GEORG;SOBOTTKA, RICHARD;DUNN, PAUL |
分类号 |
C08J3/22;C08K9/04;C08K9/08;C08L23/00;C09C1/28;(IPC1-7):C08K9/04 |
主分类号 |
C08J3/22 |
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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