Patent application number | Description | Published |
20110135904 | EPDM foam and sealing material - 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 μg/g, and a 50% compression load value thereof is in a range of 0.10 to 2.0 N/cm | 06-09-2011 |
20110135909 | EPDM foam, producing method thereof, and sealing material - 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. | 06-09-2011 |
20120277337 | EPDM foam and adhesive sealing material - An EPDM foam contains an ethylene-propylene-diene rubber, in which the EPDM foam has water stopping performance lasting for 1 hour or more according to 50% waterstop test and metal corrosion is not observed according to metal corrosion test. | 11-01-2012 |
20130267619 | EPDM FOAM, PRODUCING METHOD THEREOF, AND SEALING MATERIAL - 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. | 10-10-2013 |
20140220334 | ETHYLENE-PROPYLENE-DIENE RUBBER FOAMED MATERIAL AND SEALING MATERIAL - 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. | 08-07-2014 |
20140234610 | SOUND ABSORBING MATERIAL AND SEALING MATERIAL - 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 | 08-21-2014 |
20140234611 | ETHYLENE-PROPYLENE-DIENE RUBBER FOAMED MATERIAL, PRODUCING METHOD THEREOF, AND SEALING MATERIAL - 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 | 08-21-2014 |
20140238775 | SOUND INSULATING MATERIAL AND SEALING MATERIAL - A sound insulating material is obtained by foaming a rubber composition containing an ethylene-propylene-diene rubber. The content ratio of a sulfur atom calculated by a fluorescent X-ray measurement, based on mass, is 1000 ppm or less. The sound insulating material has a 50% compressive load value of 0.1 N/cm | 08-28-2014 |
20140284086 | VIBRATION-PROOF MATERIAL, VIBRATION-PROOF STRUCTURE, AND VIBRATION-PROOF METHOD - A vibration-proof material is obtained by foaming a rubber composition containing an ethylene-propylene-diene rubber. 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 and the vibration-proof material has a Young's modulus at 23° C. of 6.0×10 | 09-25-2014 |
20140287222 | BUFFER MATERIAL AND SEALING MATERIAL - A buffer material is obtained by foaming a rubber composition containing an ethylene-propylene-diene rubber. In the buffer material, 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, the buffer material has a 50% compressive load value of 0.1 N/cm | 09-25-2014 |
20140287223 | ETHYLENE-PROPYLENE-DIENE RUBBER FOAMED MATERIAL AND SEALING MATERIAL - An ethylene-propylene-diene rubber foamed material is obtained by foaming a rubber composition containing an ethylene-propylene-diene rubber. In the ethylene-propylene-diene rubber foamed material, 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, a rate of change of a 50% compressive load value after being heated at 140° C. for 7 days to a 50% compressive load value before being heated is 50% or more and 150% or less, and the 50% compressive load value before being heated is 0.1 N/cm | 09-25-2014 |