Fire retardant epoxy resins containing 3-hydroxyalkylphosphine o

Details Fire retardant epoxy resins containing 3-hydroxyalkylphosphine o Fire retardant epoxy resins containing 3-hydroxyalkylphosphine o

1982-04-19

1983-04-19

Nielsen, Earl A.

Stock material or miscellaneous articles

Composite

Of epoxy ether

427386, 428249, 428251, 428285, 428286, 428532, 428921, B32B 1710

Patent

active

043805710

ABSTRACT:
Epoxy resins are rendered fire retardant by the addition thereto of a 3-hydroxyalkylphosphine oxide. Other halogen containing flame retardants may or may not be present in the composition. Mixtures containing a brominated epoxide and/or a halogenated phosphine oxide provide a high level of flame retardance at low levels of the additive. The epoxy resins may be heat cured in the presence of an acid anhydride or amine to form a polymer having the phosphine oxide incorporated in the polymer molecule.

REFERENCES:
patent: 2916473 (1959-12-01), Bullock et al.
patent: 3008926 (1961-11-01), Reuter et al.
patent: 3192242 (1965-06-01), Birum
patent: 3258492 (1966-06-01), Ritt et al.
patent: 3645919 (1972-02-01), Kerst
patent: 3661857 (1972-05-01), Kerst
patent: 3666543 (1972-05-01), Maier
patent: 3716580 (1973-02-01), Maier
patent: 3888942 (1975-06-01), Tsen
patent: 3981832 (1976-09-01), Godfried
patent: 4151229 (1979-04-01), Zondler

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