Preform and bottle using pet/pen blends and copolymers

A container made from an injection molded preform comprising an open ended mouth forming portion, an intermediate body forming portion, and a closed base forming portion, wherein said preform comprises PEN, and forms a container having a stretch ratio in the range of 18:1 to 25:1 wherein said container has a volume in the range of 250 ml to 850 ml, wherein the stretch index of the container is below 130 cm, and wherein said preform ranges in size from a preform having a thickness of about 3 mm at the center side wall forming portion, a thickness of about 3 mm in the base forming portion, and a length of about 40 mm, to a preform having a thickness of about 8.0 mm at the center side wall forming portion, a thickness of about 8.0 mm in the base forming portion, and a length of about 100 mm.

A container made from an injection molded preform comprising an open ended mouth forming portion, an intermediate body forming portion, and a closed base forming portion, wherein said preform forms a container having a stretch ratio in the range of 18:1 to 21:1 wherein said container has a volume in the range of 250 ml to 1000 ml, wherein the stretch index of the container is below 130 cm, and wherein said preform ranges in size from a preform having a thickness of about 3 mm at the center side wall forming portion, a thickness of about 3 mm in the base forming portion, and a length of about 40 mm, to a preform having a thickness of about 8.0 mm at the center side wall forming portion, a thickness of about 8.0 mm in the base forming portion, and a length of about 110 mm.

A method for producing a container which comprises:

• forming a preform of (1) a physical blend of (i) PEN copolymer and (ii) PET homopolymer or PET copolymer, such that when said PET and PEN components are physically mixed into a blend, said blend contains about 5-99.9 wt % PEN copolymer and about 0.1 to 95 wt % PET homopolymer or copolymer therein, (2) a 0.5 to 99.9 mol % 2,6-naphthalene-dicarboxylate containing PEN copolymer, or (3) PEN homopolymer, and
• blow molding the preform to form a container so that the stretch ratio of the container is in the range of 18:1 to 25:1 and the volume of the container is in the range of 250 ml to 850 ml, wherein the stretch index of the container is below 130 cm.

A method for producing a container which comprises:

• forming a preform of (1) a physical blend of (i) PEN copolymer and (ii) PET homopolymer or PET copolymer, such that when said PET and PEN components are physically mixed into a blend, said blend contains about 5-99.9 wt % PEN copolymer and about 0.1 to 95 wt % PET homopolymer or copolymer therein, (2) a 0.5 to 99.9 mol % 2,6-naphthalene-dicarboxylate containing PEN copolymer, or (3) PEN homopolymer, and
• blow molding the preform to form a container so that the stretch ratio of the container is in the range of 18:1 to 20:1 and the volume of the container is in the range of 250 ml to 1000 ml, wherein the stretch index of the container is below 130 cm.

A bottle made from an injection molded preform comprising an open ended mouth forming portion, an intermediate body forming portion, and a closed base forming portion, said preform comprising PEN, said bottle having a stretch ratio in the range of 18:1 to 25:1 and a volume in the range of 250 ml to 850 ml, wherein the stretch index of the bottle is below 130 cm, and wherein said preform ranges in size from a preform having a thickness of about 3 mm at the center side wall forming portion, a thickness of about 3 mm in the base forming portion, and a length of about 40 mm, to a preform having a thickness of about 8.0 mm at the center side wall forming portion, a thickness of about 8.0 mm in the base forming portion, and a length of about 100 mm.

A bottle made from an injection molded preform comprising an open ended mouth forming portion, an intermediate body forming portion, and a closed base forming portion, said bottle having a stretch ratio in the range of 18:1 to 21:1 and a volume in the range of 250 ml to 1000 ml, wherein the stretch index of the bottle is below 130 cm, and wherein said preform ranges in size from a preform having a thickness of about 3 mm at the center side wall forming portion, a thickness of about 3 mm in the base forming portion, and a length of about 40 mm, to a preform having a thickness of about 8.0 mm at the center side wall forming portion, a thickness of about 8.0 mm in the base forming portion, and a length of about 110 mm.

A container made from an injection molded preform comprising an open ended mouth forming portion, an intermediate body forming portion, and a closed base forming portion, wherein said preform comprises PEN homopolymer, said preform forms a container having a stretch ratio in the range of 18:1 to 25:1 wherein said container has a volume in the range of 250 ml to 850 ml and an average container sidewall thickness of at least 0.35 mm, wherein the stretch index of the container is below 130 cm.

A container made from an injection molded preform comprising an open ended mouth forming portion, an intermediate body forming portion, and a closed base forming portion, wherein said preform comprises PEN homopolymer, and said preform forms a container having a stretch ratio in the range of 18:1 to 20:1, wherein said container has a volume in the range of 250 ml to 1000 ml and an average container sidewall thickness of at least 0.35 mm, wherein the stretch index of the container is below 130 cm.