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公开(公告)号:US4190613A
公开(公告)日:1980-02-26
申请号:US835298
申请日:1977-09-21
CPC分类号: C08L21/00 , C08J3/124 , C08L11/00 , C08L23/08 , C08L23/0853 , C08L9/02 , C08L9/06 , C08L33/20
摘要: A freeflowing rubber mixture which is stable against coalescence and cohesion comprising a vulcanizable rubber in powder form and a minor amount of an acrylonitrile polymer as a separating agent.
摘要翻译: 一种自由流动的橡胶混合物,其对于聚结和内聚是稳定的,其包含粉末形式的可硫化橡胶和少量作为分离剂的丙烯腈聚合物。
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公开(公告)号:US4157790A
公开(公告)日:1979-06-12
申请号:US844261
申请日:1977-10-21
申请人: Otto Benn , Rolf Cornils , Gerhard Giersiepen
发明人: Otto Benn , Rolf Cornils , Gerhard Giersiepen
IPC分类号: C08L7/00 , B29B9/00 , B29B15/00 , B29B15/02 , C08C1/00 , C08J3/12 , C08L21/00 , C08L23/00 , C08L33/00 , C08L33/02 , C08L101/00 , B02C23/06
CPC分类号: C08J3/124 , B29K2021/00 , C08J2321/00
摘要: A process for the production of rubber powder having a particle size of from about 200 to 1500 .mu. and a powdering agent content of less than 7% by weight by grinding rubber particles, wherein the rubber is initially mechanically size-reduced into surface-rich and pore-rich particles, the entire quantity of powdering agent is added to the rubber particles, which are then ground at low temperature to prevent the rubber from flowing, non-adsorbed or freshly added powdering agent is adsorbed by the rubber powder in a zone following the grinding machine, and the rubber powder obtained is cooled to such an extent that no warm flow of the rubber occurs.
摘要翻译: 一种生产橡胶粉末的方法,其中粒径为约200-1500μm,粉末含量小于7%(重量),通过研磨橡胶颗粒,其中橡胶最初机械尺寸减小到富表面, 富含孔的颗粒,将全部量的粉化剂加入到橡胶颗粒中,然后在低温下研磨,以防止橡胶流动,未吸附或新鲜加入的粉末剂被橡胶粉末吸附在以下区域 将研磨机和所得到的橡胶粉末冷却至不发生橡胶热流动的程度。
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