A composition comprising, based on the total weight of the composition: from 5 to 90 wt% of a modified poly(butylene terephthalate) copolymer, wherein (a) the modified poly(butylene terephthalate) copolymer is derived from a first polymer comprising a poly(ethylene terephthalate) component selected from the group consisting of poly(ethylene terephthalate) homopolymers, poly(ethylene terephthalate) copolymers, and combinations thereof, in the presence of a second polymer selected from the group consisting of polyvinyl chlorides, polyvinylidene chlorides, polyamides, polylactic acid, and combinations thereof, wherein (b) the modified poly(butylene terephthalate) copolymer comprises (a) at least one poly(ethylene terephthalate) component residue, and (b) a member selected from the group consisting of (i) at least one second polymer selected from the group consisting of polyvinyl chlorides, polyvinylidene chlorides, polyamides, polylactic acid, and combinations thereof, (ii) at least one residue derived from the second polymer, (iii) and combinations thereof; optionally, more than 0 wt% of a filler component; and optionally, from 0 to 5 wt% of at least one additive. from 5 to 90 wt% of a modified poly(butylene terephthalate) copolymer, wherein (a) the modified poly(butylene terephthalate) copolymer is derived from a first polymer comprising a poly(ethylene terephthalate) component selected from the group consisting of poly(ethylene terephthalate) homopolymers, poly(ethylene terephthalate) copolymers, and combinations thereof, in the presence of a second polymer selected from the group consisting of polyvinyl chlorides, polyvinylidene chlorides, polyamides, polylactic acid, and combinations thereof, wherein (b) the modified poly(butylene terephthalate) copolymer comprises (a) at least one poly(ethylene terephthalate) component residue, and (b) a member selected from the group consisting of (i) at least one second polymer selected from the group consisting of polyvinyl chlorides, polyvinylidene chlorides, polyamides, polylactic acid, and combinations thereof, (ii) at least one residue derived from the second polymer, (iii) and combinations thereof; (a) the modified poly(butylene terephthalate) copolymer is derived from a first polymer comprising a poly(ethylene terephthalate) component selected from the group consisting of poly(ethylene terephthalate) homopolymers, poly(ethylene terephthalate) copolymers, and combinations thereof, in the presence of a second polymer selected from the group consisting of polyvinyl chlorides, polyvinylidene chlorides, polyamides, polylactic acid, and combinations thereof, wherein (b) the modified poly(butylene terephthalate) copolymer comprises (a) at least one poly(ethylene terephthalate) component residue, and (b) a member selected from the group consisting of (i) at least one second polymer selected from the group consisting of polyvinyl chlorides, polyvinylidene chlorides, polyamides, polylactic acid, and combinations thereof, (ii) at least one residue derived from the second polymer, (iii) and combinations thereof; (i) at least one second polymer selected from the group consisting of polyvinyl chlorides, polyvinylidene chlorides, polyamides, polylactic acid, and combinations thereof, (ii) at least one residue derived from the second polymer, (iii) and combinations thereof; optionally, more than 0 wt% of a filler component; and optionally, from 0 to 5 wt% of at least one additive.