Method of producing imide bond-containing resins and flame retar

Details Method of producing imide bond-containing resins and flame retar Method of producing imide bond-containing resins and flame retar

1989-04-12

1991-09-10

Bleutge, John C.

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

Synthetic resins

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

5253336, 525374, 525383, C08F 830, C08F 1208

Patent

active

050474774

ABSTRACT:
The invention relates to a method of producing imide bond-containing resins and flame retardants comprising such resins. The method comprises reacting a halogenated phthalic anhydride, a specific copolymer and a diisocyanate compound in an inert solvent in the presence of a tertiary amine as a catalyst 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: 3933700 (1976-01-01), Allen
patent: 4883843 (1989-11-01), Taniuchi et al.
Encyclopedia of Polymer Science and Engineering, vol. 8, John Wiley & Sons, p. 459.

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