Patent ID: 9169366
Filing Date: 2015-10-27
Classification: B32B,B65D,C08J,Y10T

Abstract:
1. A method, of forming a multi-layer film, comprising: a. providing a renewable resource selected from the group consisting of plants, animals, fish, bacteria, fungi, and forestry products; b. deriving a monomer from the renewable resource and polymerizing the monomer to form a synthetic polymer; c. forming at least one of polymer (A), polymer (B) and polymer (C) from the synthetic polymer; d. processing a first film layer having an upper surface and a lower surface, the first film layer being at least partially formed from a polymer (A) and a polymer (B), wherein the first film layer comprises from about 75% to about 99% by weight of the polymer (A) and from about 1% to about 25% by weight of the polymer (B), wherein the polymer (A) comprises at least one of a low density polyethylene (LDPE) and a linear low density polyethylene (LLDPE) and the polymer (B) comprises a copolymer; e. processing a second film layer that is at least partially formed from polymer (A), polymer (B), from about 1% to about 35% by weight of a polymer (C), and optionally an opacifying agent, wherein polymer (C) comprises a homo polypropylene (homo-PP), and wherein at least one of polymer (A), polymer (B) and polymer (C) comprises the synthetic polymer to provide the multi-layer film having a bio-based content of about 10% to about 100% using ASTM D6866-10, method B; and f. at least partially overlying the second film layer onto one of the upper surface and the lower surface of the first film layer.