Star/comb-branched polyamide

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From heterocyclic reactant containing as ring atoms oxygen,...

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528397, 528403, C08G 6900

Patent

active

045994005

ABSTRACT:
Star/comb-branched polyamides having good resistance to degradation upon exposure to shear are prepared by reacting polyvalent core compounds such as tribromoneopentyl alcohol with an oxazoline such as 2-ethyl-2-oxazoline to provide the desired polyamide. The polyamides are readily hydrolyzed with acid such as hydrochloric acid to form star/comb-branched polyamines. The polyamides and the polyamines are useful as viscosity enhancing agents in such applications as paints, mobility control agents and hydraulic fluids.

REFERENCES:
patent: 3575890 (1971-04-01), Litt et al.
patent: 4435548 (1984-03-01), Tomalia et al.
patent: 4507466 (1985-03-01), Tomalia et al.

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