Thermoplastic resin compositions containing polyphosphate...

Details Thermoplastic resin compositions containing polyphosphate... Thermoplastic resin compositions containing polyphosphate...

2005-05-31

2005-05-31

Buttner, David J. (Department: 1712)

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

Synthetic resins

Processes of preparing a desired or intentional composition...

C524S096000, C525S067000, C525S150000, C525S467000, C525S538000

Reexamination Certificate

active

06900256

ABSTRACT:
The present invention relates to polyphosphate ester morpholides, compositions comprising mixtures thereof and thermoplastic resin compositions containing the polyphosphate ester morpholide composition as a flame retardant. The flame retardant compositions comprise mixtures of polyphosphate ester morpholides which are represented by the following general formula I:in which X is 1 or 2; R1is a C6-C20aryl group, an alkyl substituted C6-C20aryl group or a derivative thereof; R2is a C6-C30arylene group, an alkyl substituted C6-C30arylene group or a derivative thereof; n is the average number of morpholide repeating units, m is the average number of R1repeating units, and n+m is 1 to 5. In accordance with the present invention, it is possible to provide a flame retardant thermoplastic resin compositions having improved flame retardancy even when small amounts of the flame retardant are used. The thermoplastic compositions according to the present invention also have a desirable balance of properties such as workability, impact strength, heat resistance, appearance and the like.

REFERENCES:
patent: 6437029 (2002-08-01), Lim et al.
patent: 6576161 (2003-06-01), Lim et al.
patent: 59-45351 (1984-03-01), None
patent: 59-202240 (1984-11-01), None
patent: 2000-154277 (2000-06-01), None

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