Search All Applications in Biodegradable Packaging
Application US20200324526
Published 2020-10-15
Recyclable Film And Packaging
A recyclable film contains a base film and a sealant. The base film has at least one layer containing a polar polymer and at least one layer containing a polar polymer compatibilizer. Additionally the base film has been oriented and annealed such that it exhibits free shrink of less than 10% in both the machine direction and the transverse direction when, exposed to heat of 90° C. This film has advantages over prior recyclable films in efficient film manufacturing, high quality package production and superior package performance.
Much More than Average Length Specification
View the Patent Matrix® Diagram to Explore the Claim Relationships
USPTO Full Text Publication >
- 1. A recyclable film comprising:
a) a base film comprising:
i) a first polar layer comprising a polar polymer, and
ii) a compatibilizer layer comprising a polar polymer compatibilizer,
b) a sealant, and c) printed indicia located between the base film and the sealant, wherein the base film is oriented and annealed such that the base film has a free shrink value of less than 10% in both the machine direction and the transverse direction when tested according to ASTM D2732 using bath temperature of 90° C.
- 7. A recyclable film comprising:
a) a base film comprising:
i) a first polar layer comprising a first polar polymer,
ii) a second polar layer comprising a second polar polymer, and
iii) a compatibilizer layer located between the first polar layer and the second polar layer, the compatibilizer layer comprising a polar polymer compatibilizer; and
b) a sealant
- 11. A recyclable film comprising a base film, the base film comprising:
a) a first outer layer comprising a polyamide; b) a compatibilizer layer comprising,
i) a polyethylene, polyethylene copolymer or blends thereof, and
ii) a compatibilizer comprising a low molecular weight anhydride or carboxylic acid functionalized polyethylene;
c) a first tie layer located between the first outer layer and the compatibilizer layer; d) a second outer layer comprising a polyamide; and e) a second tie layer located between the compatibilizer layer and the second outer layer.
