Multi-layer film with core layer of syndiotactic polypropylene

Details Multi-layer film with core layer of syndiotactic polypropylene Multi-layer film with core layer of syndiotactic polypropylene

2005-12-27

2005-12-27

Chen, Vivian (Department: 1773)

Stock material or miscellaneous articles

Composite

Of polyamide

C428S035700, C428S475500, C428S475800, C428S476300, C428S476900, C428S483000, C428S500000, C428S515000, C428S516000, C428S518000, C428S520000, C428S522000, C428S523000, C428S910000

Reexamination Certificate

active

06979495

ABSTRACT:
The present invention is directed to a biaxially oriented multi-layer film which comprises: (a) a core layer comprising a syndiotactic propylene homopolymer; and (b) at least one additional layer adjacent to the core layer comprising a polymer which is an ethylene or a propylene homopolymer, ethylene copolymer or terpolymer containing comonomers of propylene and/or butene-1. Optionally, there can be a skin layer applied to the exposed surface of the outer layer. The skin layer and/or the at least one additional layer is a polyolefin selected from the group consisting of isotactic polypropylene, polyethylene, ethylene-propylene random copolymer, ethylene-propylene block copolymer or ethylene-propylene-butene-1 terpolymer.

REFERENCES:
patent: 3753769 (1973-08-01), Steiner
patent: 4214039 (1980-07-01), Steiner et al.
patent: 4447494 (1984-05-01), Wagner, Jr. et al.
patent: 4604324 (1986-08-01), Nahmias et al.
patent: 4865908 (1989-09-01), Liu et al.
patent: 4892851 (1990-01-01), Ewen et al.
patent: 4961992 (1990-10-01), Balloni et al.
patent: 5019447 (1991-05-01), Keller
patent: 5057177 (1991-10-01), Balloni et al.
patent: 5155080 (1992-10-01), Elder et al.
patent: 5162278 (1992-11-01), Razavi
patent: 5254384 (1993-10-01), Gordon
patent: 5254394 (1993-10-01), Bothe et al.
patent: 5792549 (1998-08-01), Wilkie
patent: 5981047 (1999-11-01), Wilkie
patent: 6150013 (2000-11-01), Balaji et al.
patent: 6391467 (2002-05-01), DeLisio et al.
patent: 0499216 (1992-02-01), None
patent: WO 99/33643 (1999-07-01), None
patent: WO 00/54968 (2000-09-01), None
Bakker, Ed, “The Wiley Encyclopedia of Packaging Technology”, pp. 514-523 (1986).

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