|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||428/35 ; 428/500 ; 428/516 ; 428/518|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 118 인용 특허 : 19|
A delamination resistant multi-layer film comprises a core layer of vinyl alcohol polymers or copolymers such as polyvinyl alcohol or ethylene vinyl alcohol. Adhered to the core layer are one or more layers of a polyolefin blended with a chemically modified polyolefin having functional groups added to the basic polymer such that strong adhesion to the core layer is obtained. The core layer provides an excellent oxygen barrier, while the adjacent layers protect the core layer from degradation by exposure to water vapor. Additional layers of various polyme...
A delamination resistant multi-layer structure comprising a barrier layer of a substantially pure polymer or copolymer of vinyl alcohol adhered directly to a layer of a modified polyolefin which consists essentially of a polyolefin polymer or copolymer blended with a graft copolymer of polyethylene and an unsaturated fused ring carboxylic acid anhydride. A delamination resistant coextruded multi-layer structure comprising (a) a substantially pure ethylene vinyl alcohol copolymer core layer; (b) a modified polyolefin layer on each side of and adjacent the...