| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain a polymer composition capable of accelerating vulcanizing rate while suppressing the generation of bloom, realizing the reduction of compressed permanent distortion, without a problem of vulcanization inhibition, exhibiting a good strength and surface state of a molded foamed material and capable of improving the productivity of an electroconductive roller. <P>SOLUTION: This polymer composition for the electroconductive roller is obtained by blending a chemical foaming agent together with sulfur and thiourea such as ethylene thiourea as a crosslinking agent with a polymer composition consisting mainly of a polymer having a double bond between carbon-carbon and a halogen represented by an epichlorohydrin-based polymer such as epichlorohydrin-ethylene oxide-allylglycidyl ether copolymer, etc. <P>COPYRIGHT: (C)2003,JPO |
