Patent ID: 7619034

Claim:
An injection molded product made of a compost degradable thermoplastic molding composition comprising (A) 20 to 98.8 wt. % of an aromatic polyester copolymer (a) having repeating units comprising an acid component and a glycol component, wherein the acid component comprises about 50 to 90 mol % of terephthalic acid, about 0.2 to about 6 mol % of sulfonic acid metal salt, and about 4 to 49.8 mol % of aliphatic dicarboxylic acid; wherein the glycol component comprises about 50 to 99.9 mol % of ethylene glycol and about 0.1 to 50 mol % of diethylene glycol; and one or more polyester copolymers selected from the group consisting of: a polyester copolymer (b) prepared by copolymerization with said copolymer (a) with polyalkylene glycol; a branched polyester copolymer (c) prepared by polycondensation of said copolymer (a) with polyalkylene glycol; and a polyester copolymer (d) having repeating units comprising aromatic dicarboxylic acids and a glycol component; wherein the weight proportion of the aromatic dicarboxylic acids in copolymer (d) is from 0 to 70 parts by weight per hundred parts of polyester (d); and with the proviso that the mol % of said aromatic dicarboxylic acids of said polyester copolymer (d) is less than the mol % of the carboxylic acid content of said copolymers (a), (b), and (c); (B) 1 to 60 wt. % of material selected from the group consisting of reinforcements and fillers; (C) 0.1 to 7 wt. % of crystallization accelerator; (D) 1 to 60 wt. % of at least one flame retardant selected from the group consisting of an inorganic flame retardant, a phosphorous-based flame retardant and a phenolic polymer; and (E) 0.1 to 5 wt. % of lubricant.