Multilayered package with barrier properties

Details Multilayered package with barrier properties Multilayered package with barrier properties

2001-10-31

2010-10-05

Nordmeyer, Patricia L (Department: 1783)

Stock material or miscellaneous articles

Composite

Of polyamide

C428S475200, C428S542800, C428S036700, C428S036600, C428S035700, C428S036910, C215S012200

Reexamination Certificate

active

07807270

ABSTRACT:
The present invention provides compositions useful as a barrier layer in, for example, packaging products. The compositions generally comprise a blend of (i) a polyester material, preferably an aromatic polyester resin such as polyethylene terephthalate (PET) and (ii) a vinyl alcohol material. The blend optionally may further comprise (iii) a polyolefin material (preferably a functionalized polyolefin material, e.g., a BYNEL material); and/or (iv) a polyamide material (preferably an amorphous polyamide material, e.g., a GRIVORY material), that optionally further comprises an oxygen scavenging material. The present invention also provides containers (e.g., containers formed by expansion of preforms) having a multilayered body-forming portion including: a core layer comprising the aforementioned blend, and inner and outer layers of a formable polymer composition. The present invention also provides methods of making such containers.

REFERENCES:
patent: 4284671 (1981-08-01), Cancio et al.
patent: 4501781 (1985-02-01), Kushida et al.
patent: 4613644 (1986-09-01), Moritani et al.
patent: 4764403 (1988-08-01), Ajmera
patent: 4952628 (1990-08-01), Blatz
patent: 4971864 (1990-11-01), McCord
patent: 5034252 (1991-07-01), Nilsson et al.
patent: 5068136 (1991-11-01), Yoshida et al.
patent: 5069946 (1991-12-01), Moritani et al.
patent: 5077111 (1991-12-01), Collette
patent: 5110855 (1992-05-01), Blatz
patent: 5194306 (1993-03-01), Blatz
patent: 5281360 (1994-01-01), Hong et al.
patent: 5641825 (1997-06-01), Bacskai et al.
patent: 5759653 (1998-06-01), Collette et al.
patent: 5866649 (1999-02-01), Hong et al.
patent: 6423776 (2002-07-01), Akkapeddi et al.
patent: 6759107 (2004-07-01), Tai et al.
patent: 6777479 (2004-08-01), Bernard et al.
patent: 2002/0022099 (2002-02-01), Schmidt et al.
patent: 0 191 701 (1986-08-01), None
patent: 0 191 701 (1986-08-01), None
patent: 0 703 279 (1996-03-01), None
patent: 1 348 006 (1996-09-01), None
patent: 58197050 (1983-11-01), None
patent: 200006939 (2000-01-01), None
patent: 95/11801 (1995-05-01), None
patent: WO 95/11801 (1995-05-01), None
The supplementary European search report for corresponding European patent application No. 06 02 0141.5, dated Jan. 16, 2007 (4 pages).

Affiliated with

Also associated with

Rating

Multilayered package with barrier properties does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multilayered package with barrier properties, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multilayered package with barrier properties will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4165664