Abstract: An ethylene-propylene-diene rubber foamed material is obtained by foaming a rubber composition containing an ethylene-propylene-diene rubber and a thermoplastic resin having a melting point of 60 to 140° C. The thermoplastic resin content with respect to 100 parts by mass of the ethylene-propylene-diene rubber is 5 to 50 parts by mass and the ethylene-propylene-diene rubber includes an ethylene-propylene-diene rubber having a diene amount of 4.0 mass % or more.

Abstract: A sealing method is for sealing a gap between an opening section extending through a wall in a thickness direction thereof and an insertion member inserted in the opening section, and includes a seal-member preparing step of preparing a seal member including an elastic layer, an adhesive layer laminated on a surface of the elastic layer, and a release sheet laminated on a surface of the adhesive layer, and formed with a through hole into which the insertion member is to be inserted along a direction of lamination thereof, an inserting step of inserting the insertion member into the through hole such that the insertion member comes in contact with the seal member to bring the release sheet into abutment with the wall, and a sticking step of sticking the seal member to the insertion member and the wall, while peeling the release sheet from the adhesive layer.

Abstract: An ethylene-propylene-diene rubber foamed material is obtained by foaming a rubber composition containing an ethylene-propylene-diene rubber. A rate of change of an 80% compressive load value CL2 after being heated at 150° C. for 10 days to an 80% compressive load value CL1 before being heated is ?50% or more and 50% or less and the 80% compressive load value CL1 before being heated is 0.5 N/cm2 or more and 10 N/cm2 or less.

Abstract: An ethylene-propylene-diene rubber foamed material is obtained by foaming a rubber composition containing an ethylene-propylene-diene rubber and a cross-linking agent. The cross-linking agent does not contain sulfur and contains a thiuram compound and the mixing ratio of the thiuram compound with respect to 100 parts by mass of the ethylene-propylene-diene rubber is 0.05 parts by mass or more and less than 20 parts by mass.

Abstract: An EPDM foam is obtained by foaming a foam composition containing, based on 100 parts by weight of an ethylenepropylenediene rubber, 0.1 to 5 parts by weight of a vulcanizer, 0.1 to 10 parts by weight of a vulcanization accelerator, 1 to 30 parts by weight of a foaming agent, and a foaming auxiliary agent. The vulcanization accelerator contains a thiourea vulcanization accelerator, a thiazole vulcanization accelerator, a dithiocarbamate vulcanization accelerator, and a thiuram vulcanization accelerator such that a thiourea vulcanization accelerator/thiazole vulcanization accelerator/dithiocarbamate vulcanization accelerator/thiuram vulcanization accelerator weight ratio is in a range of 1 to 20/1 to 20/1 to 20/1 to 30.

Abstract: An EPDM foam is obtained by foaming a foam composition containing, based on 100 parts by weight of an ethylenepropylenediene rubber, 0.1 to 5 parts by weight of a vulcanizer, 0.1 to 10 parts by weight of a vulcanization accelerator, 1 to 30 parts by weight of a foaming agent, and a foaming auxiliary agent. The vulcanization accelerator contains a thiourea vulcanization accelerator, a thiazole vulcanization accelerator, a dithiocarbamate vulcanization accelerator, and a thiuram vulcanization accelerator such that a thiourea vulcanization accelerator/thiazole vulcanization accelerator/dithiocarbamate vulcanization accelerator/thiuram vulcanization accelerator weight ratio is in a range of 1 to 20/1 to 20/1 to 20/1 to 30.

Abstract: A sealing method is for sealing a gap between an opening section extending through a wall in a thickness direction thereof and an insertion member inserted in the opening section, and includes a seal-member preparing step of preparing a seal member including an elastic layer, an adhesive layer laminated on a surface of the elastic layer, and a release sheet laminated on a surface of the adhesive layer, and formed with a through hole into which the insertion member is to be inserted along a direction of lamination thereof, an inserting step of inserting the insertion member into the through hole such that the insertion member comes in contact with the seal member to bring the release sheet into abutment with the wall, and a sticking step of sticking the seal member to the insertion member and the wall, while peeling the release sheet from the adhesive layer.

Abstract: There is provided an EPDM foam including, in which an amount of N-nitrosodimethylamine and N-nitrosodiethylamine generated therefrom by heating the EPDM foam at 200° C. for three hours is not more than 1 ?g/g, and a 50% compression load value thereof is in a range of 0.10 to 2.0 N/cm2.

Abstract: An EPDM foam is obtained by foaming a foam composition containing, based on 100 parts by weight of an ethylenepropylenediene rubber, 0.1 to 5 parts by weight of a vulcanizer, 0.1 to 10 parts by weight of a vulcanization accelerator, 1 to 30 parts by weight of a foaming agent, and a foaming auxiliary agent. The vulcanization accelerator contains a thiourea vulcanization accelerator, a thiazole vulcanization accelerator, a dithiocarbamate vulcanization accelerator, and a thiuram vulcanization accelerator such that a thiourea vulcanization accelerator/thiazole vulcanization accelerator/dithiocarbamate vulcanization accelerator/thiuram vulcanization accelerator weight ratio is in a range of 1 to 20/1 to 20/1 to 20/1 to 30.