首页> 外国专利> RUBBER COMPOSITION COMPRISING ETHYLENE/A-OLEFIN/NON-CONJUGATED POLYENE COPOLYMER AND ETHYLENE C3 TO C20 A- OLEFIN COPOLYMER

RUBBER COMPOSITION COMPRISING ETHYLENE/A-OLEFIN/NON-CONJUGATED POLYENE COPOLYMER AND ETHYLENE C3 TO C20 A- OLEFIN COPOLYMER

机译:包含乙烯/α-烯烃/非共轭聚乙烯共聚物和乙烯C3至C20α-烯烃共聚物的橡胶组合物

摘要

The present invention provides a molded product exhibiting excellent various properties by improving compatibility of an ethylene/- olefin/non-conjugated polyene copolymer with a polyolefin resin and a rubber composition for forming the molded product. The present invention further provides a molded product which comprises a rubber composition, is inhibited from fogging and tackiness and is excellent in mechanical strength and heat aging resistance. The rubber composition of the invention comprises an ethylene/- olefin/non-conjugated polyene copolymer (A), and a polyolefin resin (B) having Mn of not less than 10,000 and/or an ethylene/-olefin copolymer (C) having Mn of 2500 to 5000, and satisfies the following requirements: (1) a maximum value and a minimum value of an ethylene distribution parameter P of the component (A) have a relationship of Pmax/Pmin1.4, and (2) the B value of the component (C) ([EX]/(2[E]�[X])) ([E] and [X] are molar fractions of ethylene and the -olefin of 3 to 20 carbon atoms, respectively, and [EX] is a fraction of dyad sequence of ethylene/-olefin of 3 to 20 carbon atoms) is not more than 1.05.
机译:本发明提供了通过改善乙烯/-烯烃/非共轭多烯共聚物与聚烯烃树脂和用于形成所述模制品的橡胶组合物的相容性而表现出优异的各种性能的模制品。本发明进一步提供了包含橡胶组合物,抑制起雾和发粘并且机械强度和耐热老化性优异的模制品。本发明的橡胶组合物包含乙烯/烯烃/非共轭多烯共聚物(A),Mn为10,000以上的聚烯烃树脂(B)和/或Mn为乙烯/烯烃的共聚物(C)。 2500至5000,并且满足以下要求:(1)组分(A)的乙烯分布参数P的最大值和最小值具有Pmax / Pmin1.4的关系,以及(2)B值(C)([EX] /(2 [E]·[X]))的[[E]和[X]分别是乙烯和3至20个碳原子的烯烃的摩尔分数,[ EX]是3至20个碳原子的乙烯/烯烃的二元序列的分数)不大于1.05。

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