公开(公告)号：EP2759567A4

公开(公告)日：2015-03-04

申请号：EP12833583

申请日：2012-09-18

Applicant: NITTO DENKO CORP

Inventor： IWASE TAKAYUKI ,  HIRAI BUNTA

IPC: C08J9/04 ,  B32B5/18 ,  B32B27/00 ,  C08J9/00 ,  C08J9/10 ,  C08K5/14 ,  C08K5/33 ,  C08L23/16 ,  C08L71/02 ,  C09K3/10 ,  G10K11/16 ,  G10K11/162

CPC classification number: C09J7/0275 ,  B32B7/12 ,  B32B25/08 ,  B32B25/16 ,  B32B2250/02 ,  B32B2250/24 ,  B32B2266/0207 ,  B32B2307/102 ,  B32B2307/54 ,  B32B2307/724 ,  B32B2581/00 ,  C08J9/0023 ,  C08J9/0028 ,  C08J9/04 ,  C08J9/103 ,  C08J2201/026 ,  C08J2323/16 ,  C08L23/16 ,  C09J7/243 ,  C09J7/26 ,  C09K3/10 ,  C09K2200/0642 ,  G10K11/162 ,  Y10T428/249982

Abstract: A sound absorbing material is obtained by foaming a rubber composition containing an ethylene-propylene-diene rubber. The content ratio of sulfur in the sound absorbing material calculated by a fluorescent X-ray measurement, based on mass, is 1000 ppm or less. The sound absorbing material has a 50 % compressive load value of 0.1 N/cm 2 or more and 10 N/cm 2 or less. The sound absorbing material has a 50 % permanent compression set of less than 50 %.

公开(公告)号：EP2759565A4

公开(公告)日：2015-07-29

申请号：EP12833006

申请日：2012-09-18

Applicant: NITTO DENKO CORP

Inventor： IWASE TAKAYUKI ,  KAWATA JOJI

IPC: C08J9/04 ,  B32B5/18 ,  B32B27/00 ,  C08J9/00 ,  C08J9/10 ,  C08K5/14 ,  C08K5/33 ,  C08L23/16 ,  C08L71/02 ,  C09K3/10 ,  G10K11/16 ,  G10K11/162

CPC classification number: B29C47/0004 ,  C08F36/04 ,  C08J9/0028 ,  C08J9/04 ,  C08J2201/026 ,  C08J2323/16 ,  C08L23/16 ,  C09J7/26 ,  C09K3/10 ,  C09K2200/0642 ,  Y10T428/249983

Abstract: An ethylene-propylene-diene rubber foamed material is obtained by foaming a rubber composition containing an ethylene-propylene-diene rubber. The ethylene-propylene-diene rubber foamed material has a 50 % compressive load value of 0.1 to 2.0 N/cm 2 and the content ratio of a sulfur atom calculated based on the measurement result of a fluorescent X-ray measurement, based on mass, is 1000 ppm or less.

公开(公告)号：EP2759568A4

公开(公告)日：2015-05-27

申请号：EP12834469

申请日：2012-09-18

Applicant: NITTO DENKO CORP

Inventor： IWASE TAKAYUKI ,  KAWATA JOJI

IPC: C08J9/04 ,  B32B5/18 ,  B32B27/00 ,  C08J9/00 ,  C08J9/10 ,  C08K5/14 ,  C08K5/33 ,  C08L23/16 ,  C08L71/02 ,  C09K3/10 ,  G10K11/16 ,  G10K11/162

CPC classification number: C08J9/00 ,  C08J9/0023 ,  C08J9/0028 ,  C08J9/04 ,  C08J2201/026 ,  C08J2323/16 ,  C08J2347/00 ,  C08L23/16 ,  C09J7/26 ,  C09J2201/606 ,  C09J2423/006 ,  C09J2423/166 ,  C09K3/10 ,  C09K2200/0642 ,  Y10T428/249983 ,  C08L71/02

Abstract: An ethylene-propylene-diene rubber foamed material is obtained by foaming a rubber composition containing an ethylene-propylene-diene rubber. The ethylene-propylene-diene rubber foamed material has a permanent compression set obtained by being compressed by 50 % at 80°C for 22 hours to be then released at 23°C after the elapse of 24 hours of 30 % or less. The content ratio of a sulfur atom calculated based on the measurement result of a fluorescent X-ray measurement, based on mass, is 1000 ppm or less.