| 摘要 |
Rubber compounding novalak type resins are prepared by reacting (A) an alkyl substituted resorcinol or phenol prepared by reacting at least one of the compound of the formula <IMAGE> wherein R1 and R2 may be the same or different radicals selected from the group consisting of -H, -OH, -NH2 and an alkyl of 1 to about 20 carbon atoms with a mono or polyunsaturated hydrocarbon selected from the group consisting of butene, diisobutylene, piperylene, dipentene, dicyclopentadiene, cyclopentadiene, isoprene, butadiene, pinene, styrene and divinylbenzene in the presence of an acid catalyst, wit (B) an aldehyde selected from the group consisting of formaldehyde, paraformaldehyde, acetaldehyde, propionaldehyde, butyraldehyde, crotonaldehyde, benzaldehyde and furfural.
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