Novel rubber compounding resorcinolic resins

Details Novel rubber compounding resorcinolic resins Novel rubber compounding resorcinolic resins

1988-08-30

1989-12-26

Pertilla, Theodore E.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

156335, 156338, 525134, 525140, C08L 6100

Patent

active

048898910

ABSTRACT:
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 ##STR1## wherein R.sub.1 and R.sub.2 may be the same or different radicals selected from the group consisting of --H, --OH, --NH.sub.2 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.

REFERENCES:
patent: 3538052 (1970-11-01), Higginbottom

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