Process for preparation of modified aromatic hydrocarbon resin

Details Process for preparation of modified aromatic hydrocarbon resin Process for preparation of modified aromatic hydrocarbon resin

1981-04-21

1983-02-01

Lieberman, Allan

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

Synthetic resins

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

528495, 528499, 528500, C08G 1004, C08J 300

Patent

active

043716750

ABSTRACT:
A modified aromatic hydrocarbon resin is prepared by reacting an aromatic hydrocarbon-formaldehyde resin with an unsaturated polybasic acid or an anhydride thereof, if desired, together with a saturated polybasic acid or an anhydride thereof, while making water or water and an aliphatic alcohol present in the reaction system and removing the formaldehyde formed by the reaction. The cured product has a good mechanical strength and a high resistance to water and alkalis.

REFERENCES:
patent: 3398107 (1968-08-01), Rowe et al.
patent: 4197378 (1980-04-01), Rudolphy et al.

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