Water → Dicyclopentadiene

Participants

Reaction Steps

A four-neck flask was charged with 196 parts of maleic anhydride, 278 parts of dicyclopentadiene (purity: 95%) and 36 parts of deionized water, and the resultant mixture was subjected to addition reaction at 130° C. under nitrogen flow for 3 hours to give an adduct of dicyclopentadiene with maleic acid. To this adduct, 392 parts of maleic anhydride, 592 parts of phthalic anhydride, and 718 parts of propylene glycol were added and admixed, and the resultant mixture underwent dehydration condensation reaction at 200° C. under nitrogen flow for 8 hours according to a conventional technique to give an unsaturated polyester having a dicyclopentenyl group with an acid value of 25 (Unsaturated Polyester 1) corresponding to the inventive component.

Provenance & Evidence