The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 24, 2012
Filed:
Dec. 04, 2008
Yuji Noguchi, Funabashi, JP;
Takashi Hakuta, Sodegaura, JP;
Hiroki Ebata, Ichihara, JP;
Kotaro Ichino, Sodegaura, JP;
Shuichi Nonaka, Kisarazu, JP;
Satoshi Hase, Toyota, JP;
Kazuyoshi Kaneko, Ichihara, JP;
Akinori Takehara, Chiba, JP;
Yuji Noguchi, Funabashi, JP;
Takashi Hakuta, Sodegaura, JP;
Hiroki Ebata, Ichihara, JP;
Kotaro Ichino, Sodegaura, JP;
Shuichi Nonaka, Kisarazu, JP;
Satoshi Hase, Toyota, JP;
Kazuyoshi Kaneko, Ichihara, JP;
Akinori Takehara, Chiba, JP;
Mitsui Chemicals, Inc., Tokyo, JP;
Abstract
The present invention provides a molded product exhibiting excellent various properties by improving compatibility of an ethylene/α-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/α-olefin/non-conjugated polyene copolymer (A), and a polyolefin resin (B) having Mn of not less than 10,000 and/or an ethylene/α-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/Pmin≦1.4, and (2) the B value of the component (C) ([EX]/(2[E]×[X])) ([E] and [X] are molar fractions of ethylene and the α-olefin of 3 to 20 carbon atoms, respectively, and [EX] is a fraction of dyad sequence of ethylene/α-olefin of 3 to 20 carbon atoms) is not more than 1.05.