Imide bond-containing resins and flame retardants comprising sai

Details Imide bond-containing resins and flame retardants comprising sai Imide bond-containing resins and flame retardants comprising sai

1989-01-23

1989-11-28

Schofer, Joseph L.

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

Synthetic resins

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

5253268, 5253274, 5253336, 5253592, 525382, 525386, C08F 832

Patent

active

048838438

ABSTRACT:
The invention relates to a method of producing imide bond-containing resins and flame retardants comprising such resins. The method comprises subjecting a halogenated phthalic anhydride, a specific copolymer and a diamine to dehydration reaction in an inert solvents to give an imide bond-containing resin. The resins provide flammable substances with good fire or flame resistance and at the same time themselves have good heat resistance and weather resistance. Therefore, the flame retardants comprising these resins have a wide field of application.

REFERENCES:
patent: 3104235 (1963-09-01), Kuntz et al.
patent: 4059545 (1977-11-01), Corbett et al.

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