| 摘要 |
PROBLEM TO BE SOLVED: To provide a resin crosslinking agent having a lower softening point than a crosslinking temperature of a rubber, excellent in the dispersibility into the rubber and in the blocking resistance, and reduced in the amount of remaining alkylphenol as a raw material. SOLUTION: The resin crosslinking agent is produced by controlling its softening point to 85-115°C by giving a 1-30 wt.% plasticizer to a halogenated alkylphenol-formaldehyde copolycondensation resin containing less than 1.0% remaining alkylphenol as a raw material. COPYRIGHT: (C)2007,JPO&INPIT
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