Aqueous dispersions of polyamines and poly(dihydrobenzoxazines)

Details Aqueous dispersions of polyamines and poly(dihydrobenzoxazines) Aqueous dispersions of polyamines and poly(dihydrobenzoxazines)

1984-02-17

1985-03-26

Lee, Lester L.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524595, 524611, 528153, 528162, 528172, 528210, 528211, 528406, 528407, C08L 6112, C08L 7904

Patent

active

045074283

ABSTRACT:
An aqueous dispersion comprising a poly(3,4-dihydro-3-substituted-1,3 benzoxazine) and a protonated reactive polyamine, wherein the polyamine is at least difunctional, its reactive groups being primary or secondary amine and is protonated with an inorganic or organic acid and wherein the poly(dihydrobenzoxazine) is the reaction product of about 1 equivalent of a primary amine, about 1 equivalent of a phenol and about two equivalents of formaldehyde. The dispersions can be dried and cured to provide useful surface coatings and primers. The curing step occurs without evolution of volatile matter.

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Burke et al., J. Org. Chem. 30, 3423 (1965).
Kuehne, J. Med. Pharm. Chem., 5, 257 (1962).
Bishop, Dissertation Summary, 63-1372, University Microfilms Inc., Ann Arbor, Michigan (1962).

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