Polyester-based resin composition

Details Polyester-based resin composition Polyester-based resin composition

2006-05-30

2006-05-30

Szekely, Peter (Department: 1714)

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C524S413000, C524S414000, C524S425000, C524S436000

Reexamination Certificate

active

07053143

ABSTRACT:
The polyester-based resin composition of the present invention comprises a polyamide resin, a polyester resin containing an antimony compound and a compound selected from the group consisting of inorganic acid salts and hydroxides of group-1 or -2 metals of the periodic table and transition metals. In the polyester-based resin composition, the phosphorus atom concentration, the antimony atom concentration, and the blending ratio of the inorganic acid salt or hydroxide to the phosphorus compound are regulated so as to satisfy the specific relationships to effectively prevent the darkening due to the deposition of antimony metal, thereby providing the polyester-based resin composition having excellent gas barrier properties and a good appearance with minimized darkening.

REFERENCES:
patent: 6667383 (2003-12-01), Fujimori et al.
patent: 6703474 (2004-03-01), Fujimori et al.
patent: 6733853 (2004-05-01), Takashima et al.
patent: 1 239 008 (2002-09-01), None
patent: 2001 234064 (2001-08-01), None
patent: 2001-234064 (2001-08-01), None

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