Multilayer coextruded polyolefin stretch wrap films

Details Multilayer coextruded polyolefin stretch wrap films Multilayer coextruded polyolefin stretch wrap films

1992-12-18

1995-05-30

Robinson, Ellis P.

Stock material or miscellaneous articles

Hollow or container type article

Shrinkable or shrunk

428 352, 428 357, 428516, 428911, 264171, 264514, B65B 5300

Patent

active

054199344

ABSTRACT:
The present invention relates to multilayer coextruded thermoplastic stretch wrap films useful for the packaging or palletizing of goods. More particularly the films of this invention include at least three layers, the three layers having two outer layers and an intermediate layer positioned between said outer layers, the intermediate layer comprising a mixture of a first linear low density polyethylene and a polyolefin selected from the group consisting of homopolymers of propylene, copolymers of propylene and ethylene and mixtures thereof and at least one of the two outer layers comprising a second linear low density polyethylene. The force required to stretch the films of this invention may be controlled by the ratio of polyethylene to the selected polyolefin of the intermediate layer, by controlling the thickness of the intermediate layer relative to overall film thickness, by controlling the melt flow properties of the intermediate layer polyolefin resin or by a combination thereof.

REFERENCES:
patent: 3986611 (1976-10-01), Dreher
patent: 4011382 (1977-03-01), Levine et al.
patent: 4050221 (1977-09-01), Lancaster, III et al.
patent: 4076698 (1978-02-01), Anderson et al.
patent: 4079565 (1978-03-01), Lancaster, III et al.
patent: 4205021 (1980-05-01), Morita et al.
patent: 4311808 (1982-01-01), Su
patent: 4364981 (1982-12-01), Horner et al.
patent: 4367256 (1983-01-01), Biel
patent: 4399173 (1983-08-01), Anthony et al.
patent: 4399180 (1983-08-01), Briggs et al.
patent: 4409776 (1983-10-01), Usui
patent: 4418114 (1983-11-01), Briggs et al.
patent: 4511609 (1985-04-01), Craver et al.
patent: 4518654 (1985-05-01), Eichbauer et al.
patent: 4522987 (1985-06-01), Hogan et al.
patent: 4565720 (1986-01-01), Yaeo et al.
patent: 4574104 (1986-03-01), Aishima et al.
patent: 4657811 (1987-04-01), Boyd et al.
patent: 4833017 (1989-05-01), Benoit
patent: 5019315 (1991-05-01), Wilson
patent: 5049423 (1991-09-01), German, Jr.
patent: 5066526 (1991-11-01), German, Jr.
patent: 5114763 (1992-05-01), Brant et al.
patent: 5147708 (1992-09-01), Brant et al.
patent: 5225257 (1993-07-01), Brant
patent: 5232767 (1993-08-01), Hisazumi et al.
patent: 5273809 (1993-12-01), Simmons
patent: 5292560 (1994-03-01), German

Affiliated with

Also associated with

Rating

Multilayer coextruded polyolefin stretch wrap films does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multilayer coextruded polyolefin stretch wrap films, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multilayer coextruded polyolefin stretch wrap films will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-360160