Rubber compounding resin

Details Rubber compounding resin Rubber compounding resin

1988-07-01

1991-09-17

Foelak, Morton

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528159, 528153, C08G 1404

Patent

active

050496417

ABSTRACT:
A rubber compounding resin which is low fuming, nonhygroscopic and low in free resorcinol. It is made by first reacting resorcinol or other phenolic compound and styrene or other vinyl compound in a molar ratio of 1.0 mole of resorcinol to 0.25 to 1.0 mole of styrene after which formaldehyde or other aldehyde is added in the amount of 0.5 to 0.7 moles. Alternatively, the resorcinol can first be reacted with the formaldehyde after which the styrene is added. The composition resulting from the above procedure has been identified as having the structure ##STR1## wherein X is hydroxyl, hydrogen or an alkyl group having 1 to 4 carbon atoms. An intermediate in making the above compound has been identified as having the structure.

REFERENCES:
patent: 2079210 (1934-12-01), Honel
patent: 3228899 (1966-01-01), Elmer et al.

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