Easy peel film structures

Stock material or miscellaneous articles – Composite – Of addition polymer from unsaturated monomers

Reexamination Certificate

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C428S035700, C428S036800, C428S346000, C428S347000, C428S349000, C428S3550RA, C428S500000, C428S515000, C525S221000, C525S222000, C525S231000, C525S240000, C220S359100, C220S359300, C215S232000

Reexamination Certificate



The present invention relates to sealant films comprising a first sealant layer which readily and easily delaminates or peels from a second adjacent film layer. The first sealant layer and the second adjacent layer of the sealant film of the present invention comprise propylene or ethylene moieties wherein the propylene or ethylene moieties may be homopolymers or copolymers. The film structures of the present invention can be used independently, or laminated to a second film structure wherein the second film structure may comprise a single layer or multiple layers. The sealant films of the present invention can be heat sealed to a packaging component, such as a tray either as a single film structure or as a laminate comprising a second film structure. The sealant film structures of the present invention are particularly useful as retortable lidstock.

patent: 3879492 (1975-04-01), Bontinick
patent: 4656068 (1987-04-01), Raines
patent: 4729476 (1988-03-01), Lulham et al.
patent: 4759984 (1988-07-01), Hwo
patent: 4764404 (1988-08-01), Genske et al.
patent: 4784885 (1988-11-01), Carespodi
patent: 4808662 (1989-02-01), Hwo
patent: 4859514 (1989-08-01), Friedrich et al.
patent: 4875587 (1989-10-01), Lulham et al.
patent: 4894266 (1990-01-01), Bauer et al.
patent: 4937139 (1990-06-01), Genske et al.
patent: 4970113 (1990-11-01), Yamada
patent: 5061532 (1991-10-01), Yamada
patent: 5093164 (1992-03-01), Bauer et al.
patent: 5106917 (1992-04-01), Lee et al.
patent: 5137763 (1992-08-01), Bauer et al.
patent: 5160767 (1992-11-01), Genske et al.
patent: 5302442 (1994-04-01), O'Brien et al.
patent: 5324555 (1994-06-01), Hughart et al.
patent: 5346735 (1994-09-01), Logan et al.
patent: 5346764 (1994-09-01), Kudo et al.
patent: 5407741 (1995-04-01), Ota
patent: 5407751 (1995-04-01), Genske et al.
patent: 5478617 (1995-12-01), Watanabe et al.
patent: 5500265 (1996-03-01), Ambroise et al.
patent: 5558930 (1996-09-01), DiPoto
patent: 5626929 (1997-05-01), Stevenson
patent: H1727 (1998-05-01), Jones et al.
patent: 5766018 (1998-06-01), Terashima
patent: 5773136 (1998-06-01), Alder et al.
patent: 5837369 (1998-11-01), Grunberger et al.
patent: 5919863 (1999-07-01), Seppanen et al.
patent: 5997968 (1999-12-01), Dries et al.
patent: 6224973 (2001-05-01), Trouilhet
patent: 6248380 (2001-06-01), Kocher et al.
patent: 6475578 (2002-11-01), Gerrits et al.
patent: 6590034 (2003-07-01), Wanic et al.
patent: 6630237 (2003-10-01), Rivett et al.
patent: 6645609 (2003-11-01), Sperlich et al.
patent: 6720045 (2004-04-01), Kawamura et al.
patent: 6749948 (2004-06-01), Sperlich et al.
patent: 6770361 (2004-08-01), Kong
patent: 0380145 (1997-11-01), None
patent: WO 93/17863 (1993-09-01), None
patent: 01/45934 (2001-06-01), None


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