发明名称 |
ETHYLENE ELASTOMER COMPOUNDS HAVING GOOD PROCESSABILITY AND AGING PROPERTIES |
摘要 |
Compounds having improved properties of processability and elasticity after heat aging for molded and extruded rubber parts can be prepared by utilizing improved processability EPM and/or EPDM rubber with effective amounts of carbon black prepared in a manner such that it has an average particle size of from 70 to 120 micrometer, a particle size distribution including from 40 to 225 micrometer sized particles, a surface area of 16 to 30 m<2>/g as measured by the BET adsorption, and a structure of 90 to 125 as measured by DBP absorption. The EPM and EPDM rubber useful in accordance with the invention will include those multimodal polymer blends that comprise at least two fractions having different molecular weight and, optionally, monomer composition. The invention compounds find particular use in automotive industry parts requiring high temperature tolerance, such as coolant hoses. |
申请公布号 |
WO9321270(A1) |
申请公布日期 |
1993.10.28 |
申请号 |
WO1993EP00683 |
申请日期 |
1993.03.19 |
申请人 |
EXXON MEDICAL PATENTS, INC. |
发明人 |
SCHAICH, MARTIN;MILLS, TIMOTHY, ARTHUR |
分类号 |
C09K3/10;C08K3/04;C08L23/16;(IPC1-7):C08L23/16 |
主分类号 |
C09K3/10 |
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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