Polyester compositions, method of manufacture, and uses thereof

Details Polyester compositions, method of manufacture, and uses thereof Polyester compositions, method of manufacture, and uses thereof

2007-10-11

2010-10-12

Jagannathan, Vasu (Department: 1796)

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

Synthetic resins

Processes of preparing a desired or intentional composition...

C524S100000, C524S121000, C524S605000

Reexamination Certificate

active

07812077

ABSTRACT:
A composition comprises 20 to 80 wt. % of a polyester component comprising a modified polybutylene terephthalate random copolymer derived from a polyethylene terephthalate component selected from polyethylene terephthalate and polyethylene terephthalate copolymers and having at least one residue derived from the polyethylene terephthalate component; from 5 to 35 wt. % of a flame retardant phosphinate (I) or (II)in-line-formulae description="In-line Formulae" end="lead"?(R1)(R2)(PO)—O]−mMm+  (I)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?[(O—POR1)(R3)(POR2—O)]2−nMm+x  (II),in-line-formulae description="In-line Formulae" end="tail"?and/or a flame retardant polymer thereof, wherein R1and R2are independently are H, C1-C6-alkyl, or C6-C10-aryl; R3is C1-C10, alkylene, C6-C10-arylene, -alkylarylene or -arylalkylene; M is an alkaline earth metal, alkali metal, Al, Ti, Zn, Fe, or boron; m is 1, 2, 3 or 4; n is 1, 2, or 3; and x is 1 or 2; 1 to 25 wt. % of a melamine polyphosphate, melamine cyanurate, melamine pyrophosphate, and/or melamine phosphate; and more than 0 to 25 wt. % of a polyetherimide.

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