PEN-PET-PEN polymeric film

Details PEN-PET-PEN polymeric film PEN-PET-PEN polymeric film

2005-06-21

2005-06-21

Chen, Vivian (Department: 1773)

Stock material or miscellaneous articles

Composite

Of polyester

C428S212000, C428S910000, C156S244110, C264S173110

Reexamination Certificate

active

06908686

ABSTRACT:
A polymeric film comprising a first layer which comprises (a) a mixture comprising 50-99.9% by weight polyethylene terephthalate (PET) and 0.1-50% by weight of polyethylene naphthalate (PEN) or (b) a copolymer comprising 50-99.9% by weight ethylene terephthalate units and 0.1-50% by weight ethylene naphthalate units, based on the total weight of the first layer, further comprising a second layer comprising PEN and a third layer comprising PEN, and further comprising a first intermediate layer and a second intermediate layer, wherein each of said intermediate layers comprises (a) a mixture comprising 50-99.9% by weight polyethylene terephthalate (PET) and 0.1-50% by weight polyethylene naphthalate (PEN) or (b) a copolymer comprising 50-99.9% by weight ethylene terephthalate units and 0.1-50% by weight ethylene naphthalate units, based on the total weight of the layer, and wherein the first intermediate layer is interposed between the first and second layers and the second intermediate layer is interposed between the first and third layers. The invention further relates to a method of producing such a polymeric film. The polymeric film can be used as insulation in an electric motor or generator and in a magnetic medium or in packaging material.

REFERENCES:
patent: 5427842 (1995-06-01), Bland et al.
patent: 5441800 (1995-08-01), Utsumi
patent: 5486949 (1996-01-01), Schrenk et al.
patent: 5604019 (1997-02-01), Bland et al.
patent: 5783283 (1998-07-01), Klein et al.
patent: 5882774 (1999-03-01), Jonza et al.
patent: 5968666 (1999-10-01), Carter et al.
patent: 6045894 (2000-04-01), Jonza et al.
patent: 6054224 (2000-04-01), Nagai et al.
patent: 6368699 (2002-04-01), Gilbert et al.
patent: 6787219 (2004-09-01), Peiffer et al.
patent: 2002/0037418 (2002-03-01), Peiffer et al.
patent: 0 844 519 (1998-05-01), None
patent: 0 849 075 (1998-06-01), None
patent: A 50/040682 (1975-04-01), None
patent: A 50/062286 (1975-05-01), None
patent: A 50/066578 (1975-06-01), None
patent: A 60/228149 (1985-11-01), None
patent: 63017023 (1988-09-01), None
patent: 63197643 (1989-06-01), None
patent: A 01/264843 (1989-10-01), None
patent: A 3/112079 (1989-10-01), None
patent: 3096343 (1991-04-01), None
patent: A 05/131600 (1991-11-01), None
patent: A 04/301447 (1992-10-01), None
patent: A 05/104618 (1993-04-01), None
patent: A 05/131602 (1993-05-01), None
patent: 05269842 (1993-10-01), None
patent: 06210722 (1994-08-01), None
patent: A 06/238746 (1994-08-01), None
patent: A 08/309946 (1995-05-01), None
patent: A 09/187905 (1995-11-01), None
patent: A 09/156056 (1995-12-01), None
patent: A 09/157420 (1995-12-01), None
patent: A 09/2868867 (1996-02-01), None
patent: A 09/300565 (1996-05-01), None
patent: A 9/99530 (1997-04-01), None
patent: A 10/304614 (1998-11-01), None
patent: 10304614 (1998-11-01), None
patent: A 10/338757 (1998-11-01), None
patent: WO 95/17303 (1995-06-01), None
patent: WO 97/32724 (1996-03-01), None
patent: WO 97/01440 (1997-01-01), None
patent: WO 97/32726 (1997-09-01), None
patent: WO 01/96107 (2001-12-01), None
Research Disclosure 29410, Poly(Ethylene Naphthalenedicarboxylate)Poly(Ethylene Terephthalate) Blends, Oct. 1988; pp. 714-719.
Research Disclosure 28441, Real Time Control of Photo Exposure Dose, Dec. 1987, pp. 779-782.

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