Title:
RUBBER FOAM AND SEAL MATERIAL FOR CAR
Document Type and Number:
Japanese Patent JP3896798
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a rubber foam and a seal material for a car having light and high rigidity and excellent in compression set and a shape maintenance.
SOLUTION: This rubber foam is obtained by foaming and crosslinking a rubber composition containing at least the following components (A) to (D) wherein a weight ratio of (A)/(B) is 55/45 to 85/15:(A): an ethylene-α-olefin- nonconjugated diene copolymer rubber in which Mooney viscosity is 100-300, a weight ratio of ethylene/propylene is 65/35-50/50, an iodine value is 20-30 and a Q value (Mw/Mn) is 6-10; (B): ethylene-α-olefin-nonconjugated diene copolymer rubber in which the Mooney viscosity is 20-40, the weight ratio of ethylene/ propylene is 65/35-50/50, the iodine value is 20-30 and the Q value is not more than 3; (C); a polyolefin resin in which a Vicat softening point is 75-85°C; and(D): a foaming agent.
Inventors:
Junichi Koshiba
Application Number:
JP2001082243A
Publication Date:
March 22, 2007
Filing Date:
March 22, 2001
Export Citation:
Assignee:
Sumitomo Chemical Co., Ltd.
International Classes:
B60R13/06; C08J9/06; C08L23/00; C08L23/16; C09K3/10; (IPC1-7): C08J9/06; B60R13/06; C08L23/00; C08L23/16; C09K3/10
Domestic Patent References:
| JP9169878A | ||||
| JP2000290414A |
Attorney, Agent or Firm:
Takashi Kuboyama
Toru Nakayama
Toru Nakayama