Multiple layer packaging sheet material

Details Multiple layer packaging sheet material Multiple layer packaging sheet material

B - Operations, Transporting

32

B

154/140

B32B 27/08 (2006.01)

Patent

CA 1336881

A multiple layer sheet material comprising a first layer 12 of vinylidene chloride copolymer having a first softening temperature. A second polymeric sealant layer 14 has a second softening temperature no more than about 50°C less than the first softening temperature. An optional third layer 16 between the first and second layers has a third softening temperature greater than either of the first and second softening temperatures and comprises a polyethylene terephthalate composition. A fourth polymeric layer 18 has a fourth softening temperature greater than the first and second softening temperatures. The first layer is positioned between the third and fourth layers. A fifth impact layer 20 is positioned between layers 14 and 16. The composition of the impact layer 20 comprises, as a first component, a base polymer drawn from the same family of polymers as major polymeric component of the second sealant layer, and, as a second component, a polymeric composition providing elastomeric properties to the impact layer and increased shock tolerance to the multiple layer sheet material. The disclosure also teaches the use of the sheet materials in fabrication of packages and teaches methods of fabricating both the sheet materials and the packages.

585134

Affiliated with

Also associated with

Rating

Multiple layer packaging sheet material does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multiple layer packaging sheet material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multiple layer packaging sheet material will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1327273