| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a copolymer rubber composition capable of providing a crosslinked molded product having a low compression set and a high strength, a molded product, and an automotive sealant having the molded product as a solid member.SOLUTION: There is provided a method of manufacturing a vulcanization-molded product for vulcanization of a copolymer rubber composition containing the following copolymer rubber (1) and copolymer rubber (2) as a rubber component. The method includes heating the copolymer rubber composition containing a vulcanizer at 150 to 270°C for 1 to 30 minutes concurrently with or after the molding of the copolymer rubber composition. Copolymer rubber (1) is an ethylene-α-olefin-nonconjugated polyene copolymer rubber having an ethylene unit of 50 to 70 mol%, anα-olefin unit of 50 to 30 mol%, and an iodine value of 10 to 30. Copolymer rubber (2) is an ethylene-α-olefinic copolymer rubber having an ethylene unit of over 70 mol% and 95 mol% or less, anα-olefin unit of less than 30 mol% and 5 mol% or more, and an iodine value of 0 to 8.</p> |
