Sealable multilayer polyolefin films
May 9, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3645992 Preparation of low and medium density ethylene polymer in fluid bed reactor Method of making a heat-sealable oriented polypropylene film Heat sealable laminated propylene polymer packaging material Olefin packaging laminate Sealable multilayer film of polyolefins Sealable multilayer films Highly-oriented stretchable multilayer film and process for producing the same Patent #: 4619859 InventorsAssigneeApplicationNo. 06/861772 filed on 05/09/1986US Classes:428/515, Next to second addition polymer from unsaturated monomers428/516, Monoolefin polymer428/910PRODUCT WITH MOLECULAR ORIENTATIONExaminersPrimary: Van Balen, William J.Attorney, Agent or FirmInternational ClassesB32B 27/32 (20060101)C09J 123/08 (20060101) C09J 123/00 (20060101) Foreign Application Priority Data1985-05-11 DEAbstractMultiple-layer films, particularly wrapping films, having a high sealing strength at a low sealing temperature flavorable optical properties and machine compatibility based on a film of propylene polymers and at least one linear ethylene copolymer of low density as the heat sealing layer. | |
