Twist-wrap film and use thereof as packaging film

Details Twist-wrap film and use thereof as packaging film Twist-wrap film and use thereof as packaging film

2005-11-18

2011-11-15

Ahmed, Sheeba (Department: 1787)

Stock material or miscellaneous articles

Composite

Of addition polymer from unsaturated monomers

C053S483000

Reexamination Certificate

active

08057911

ABSTRACT:
The invention relates to a twist-wrap film (1, 2, 3) which is produced by coextrusion of a plurality of plastic layers. The inventive film is characterized in that at least a) one or more plastic layer(s) (4, 4′) consist of one or more semicrystalline polyolefin(s) having a uniform structure and b) at least one additional layer from an amorphous cycloolefin copolymer (5) having a uniform structure, the layers a) and b) being in direct contact. The selection of an amorphous cycloolefin copolymer having a uniform structure in at least one layer of the inventive twist-wrap film combined with a semicrystalline polyolefin having a uniform structure allows to provide a twist-wrap film that can be easily produced and that has the rigidity required for twist-wrap packagings and a satisfactory deadfold behavior, i.e., recovery behavior.

REFERENCES:
patent: 5912070 (1999-06-01), Miharu et al.
patent: 2004/0157516 (2004-08-01), Penttinen et al.
patent: 2276541 (1999-12-01), None
patent: 2496177 (2004-03-01), None
patent: 4304308 (1994-08-01), None
patent: 4304309 (1994-08-01), None
patent: 4304310 (1994-08-01), None
patent: 19536043 (1997-04-01), None
patent: 102 38 516 (2004-03-01), None
patent: 10238515 (2004-03-01), None
patent: 10238516 (2004-03-01), None
patent: 0 773 102 (1997-05-01), None
patent: 0773102 (1997-05-01), None
patent: 0 968 816 (2000-01-01), None
patent: 0968816 (2000-01-01), None
patent: 10166529 (1998-06-01), None
patent: 11077924 (1999-03-01), None
patent: 2004/098882 (2004-11-01), None
patent: WO 2004/098882 (2004-11-01), None
patent: WO 2006042681 (2006-04-01), None
VDI-Verpackungsforum (Oct. 7-8, 2003, pp. 159-179, VDI Verlag GmbH, Dusseldorf, 2003).
Brochure of Collin/Ticona distributed at the K 2004 Plastics and Rubber Fair (Hall 9, Booth 9E-76-77, Oct. 20-27, 2004).

Affiliated with

Also associated with

Rating

Twist-wrap film and use thereof as packaging film does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Twist-wrap film and use thereof as packaging film, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Twist-wrap film and use thereof as packaging film will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4290940