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1. 发明申请

WO1997002316A1 RUBBER COMPOSITION AND PROCESS FOR THE PRODUCTION THEREOF 审中-公开
标题翻译：橡胶组合物及其生产方法
公开(公告)号：WO1997002316A1
公开(公告)日：1997-01-23
申请号：PCT/JP1996001865
申请日：1996-07-05
申请人： MITSUI PETROCHEMICAL INDUSTRIES, LTD. , NAKAHAMA, Hidenari , KAWASAKI, Masaaki , ISHII, Yuji , TOJO, Tetsuo , KODA, Taku , MAEJIMA, Yoshio , MIURA, Yuji , HOSOMI, Yasuhiro
发明人： MITSUI PETROCHEMICAL INDUSTRIES, LTD.
IPC分类号： C08L23/02
CPC分类号： C08L23/02 , C08K3/04 , C08K3/22 , C08K5/0025 , C08K5/09 , C08L23/04 , C08L23/06 , C08L23/0815 , C08L23/10 , C08L23/16 , C08L91/00 , C08L2205/18 , C08L2666/04
摘要： A vulcanizable rubber composition comprising a blend which is prepared by micro-dispersing a polyolefin resin (B) in an ethylene- alpha -olefin-nonconjugated polyene copolymer rubber (A) comprising ethylene, a C3-C20 alpha -olefin and a nonconjugated polyene in a molten state and in which the mean diameter of dispersed particles of the polyolefin resin (B) is 2 mu m or below and the (B) to (A) weight ratio ranges from 5/95 to 50/50. The micro-dispersion of a polyolefin resin (B) can easily be attained by kneading the components (A) and (B) together with compounding ingredients (such as reinforcement, filler, softener, vulcanization accelerator, vulcanizing agent and so on) in a rubber kneader, through the resin (B) is essentially difficult of micro-dispersion. Further, the composition enables the provision of rubber articles having a high and constant quality at a low cost, because the resin (B) can well be dispersed by conventional rubber kneaders in a short time without fail. The process for producing the above composition comprises introducing a rubber mixture (E) comprising 100 parts by weight of the copolymer rubber (B) and 3 to 10 parts by weight of an organic solvent (D) into a multi-stage vented extruder through a feed port, while introducing a polyolefin resin (B) thereinto in an inert gas atmosphere through another feed port, kneading the rubber mixture (E) and the polyolefin resin (B) with the removal of the solvent. This process can easily give nonblocking vulcanizable pellets of an ethylenic copolymer rubber composition comprising an ethylene- alpha -olefin-nonconjugated polyene copolymer rubber (A) and a polyolefin resin (B) wherein the resin (B) is micro-dispersed in a good state.
摘要翻译：一种可硫化橡胶组合物，其包含通过将聚烯烃树脂（B）在包含乙烯，C 3 -C 20α-烯烃和非共轭多烯的乙烯-α-烯烃 - 非共轭多烯共聚物橡胶（A）中微分散而制备的共混物熔融状态，其中聚烯烃树脂（B）的分散颗粒的平均直径为2μm或更低，（B）至（A）重量比为5/95至50/50）。聚烯烃树脂（B）的微分散体可以通过将组分（A）和（B）与配混成分（如增强剂，填料，软化剂，硫化促进剂，硫化剂等）混合在一起而容易地实现橡胶捏合机，通过树脂（B）基本上难以微分散。此外，由于通过常规橡胶捏合机很好地分散树脂（B），所以能够以低成本提供具有高质量和高质量的橡胶制品。制备上述组合物的方法包括将包含100重量份的共聚物橡胶（B）和3至10重量份的有机溶剂（D）的橡胶混合物（E）引入多级排气挤出机中，通过进料口，同时通过另一个进料口在惰性气体气氛中引入聚烯烃树脂（B），同时除去溶剂来捏合橡胶混合物（E）和聚烯烃树脂（B）。该方法可以容易地得到包含乙烯-α-烯烃 - 非共轭多烯共聚物橡胶（A）和聚烯烃树脂（B）的乙烯共聚物橡胶组合物的非阻塞可硫化丸粒，其中树脂（B）以良好的状态微分散。

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