Terpolymers of a furan, a maleic anhydride and one of a conjugat

Details Terpolymers of a furan, a maleic anhydride and one of a conjugat Terpolymers of a furan, a maleic anhydride and one of a conjugat

1973-06-11

1976-06-08

Kight, III, John

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526272, 526338, 526340, 526347, C08F22206, C08F22208, C08F22400

Patent

active

039621952

ABSTRACT:
A furan, a maleic anhydride and at least one unsaturated compound selected from a conjugated diene, e.g., butadiene and a vinyl aromatic, e.g., styrene are reacted in presence of a free-radical initiator, e.g., an organic peroxide or azo compound for example di-t-butyl peroxide or 2,2'-azobis(2-methylpropionitrile), in solution, e.g. in a hydrocarbon solution for example in toluene to produce a terpolymer. In one specific embodiment, furan, maleic anhydride and styrene and in another butadiene in lieu of the styrene are selected monomers. White powdery polymers are produced which can be converted to metal carboxylate salts. Additionally, the unsaturation in the polymer backbone permits crosslinking that is of value in the formation of protective coatings. Pendant anhydride groups are also crosslinking sites as by reaction with a diol.

REFERENCES:
patent: 2811512 (1957-10-01), Austin
patent: 3773727 (1973-11-01), Gaylord
Maleic Anhydride Derivatives; Flett et al., 1952.
N. G. Gaylord, Journal of Macro Molecular Sci.; A6, p. 1279 (1972).

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