Phosphorous-modified coating compositions, a process for their p

Details Phosphorous-modified coating compositions, a process for their p Phosphorous-modified coating compositions, a process for their p

1997-03-03

1998-06-02

Krass, Frederick

Stock material or miscellaneous articles

Composite

Of epoxy ether

428415, 428417, 428901, 528103, 528108, 528398, 528399, 528 91, 521178, 521179, 521180, 525523, 525507, C08G 5940, C09D 518

Patent

active

057596921

ABSTRACT:
The invention relates to expandable, halogen-free, flame-retardant coating compositions comprising epoxy resins, polyphosphoric esters and a curing agent, which composition comprises from 75 to 95 parts by weight of epoxy resin and from 5 to 25 parts by weight of polyphosphoric ester and wherein the overall weight ratio of epoxy resin and polyphosphoric ester to curing agent is (1.1 to 10) to 1. The invention likewise relates to a process for preparing such expandable, halogen-free coating flame-retardant, compositions comprising epoxy resins and polyphosphoric esters and a curing agent, and to their use, in particular as an intumescent coating.

REFERENCES:
patent: 3334110 (1967-08-01), Schramm
patent: 3607795 (1971-09-01), Nolken
patent: 3629163 (1971-12-01), Nolken
patent: 4289812 (1981-09-01), Martin
patent: 4382042 (1983-05-01), Hardy et al.
patent: 4529467 (1985-07-01), Ward et al.
patent: 4952646 (1990-08-01), Weil et al.
patent: 5364893 (1994-11-01), von Gentzkow et al.
patent: 5587243 (1996-12-01), Von Gentzkow
Lackkunstharze (Wagner/Sarx), 5th ed., Carl Hanser Verlag (1971), pp. 174-194.
Bald, G., et al, Angewandte Makromol. Chem. 44:151-163 (1975).

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