Brominated bisphenol-a epoxy compositions

Details Brominated bisphenol-a epoxy compositions Brominated bisphenol-a epoxy compositions

1978-12-20

1980-09-09

Lieberman, Paul

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

Synthetic resins

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

260 23, 260 4575B, 260459A, 26034815, 26034836, 525529, 568726, 568779, 528102, 26034813, 26034849, C08L 6300

Patent

active

042218934

ABSTRACT:
According to the present invention there are provided novel flame retardant brominated bisphenol epoxy compositions comprising the reaction product of the residue of the production of tetrabromo-bisphenol A (TBBA) with epichlorohydrin, and a process for the production of such compositions which comprises dissolving such residue in an excess of aqueous alkali, reacting the residue with epichlorohydrin at elevated temperature, neutralizing excess of alkali remaining after the reaction and recovering the brominated epoxy compositions.
The compositions thus obtained are useful as flame retardants. There may be optionally incorporated in same compounds such as antimony trioxide.

REFERENCES:
patent: 2939859 (1960-06-01), Rumscheidt
patent: 3016362 (1962-01-01), Wismer
patent: 3058946 (1962-10-01), Nametz
patent: 3182088 (1965-05-01), Hennis
patent: 3234289 (1966-02-01), Hennis
patent: 3363007 (1968-01-01), Majewski
patent: 3546302 (1970-12-01), Asadorian
patent: 3929908 (1975-12-01), Orlando

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