The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 11, 2003
Filed:
Aug. 13, 1999
Ray Ernest Patrick, Pelzer, SC (US);
Mendy Joyce Walden, Moore, SC (US);
Cryovac, Inc., Duncan, SC (US);
Abstract
A multilayer film has a first outer layer, an inner layer, and a second outer layer. The first outer layer comprises a homogeneous ethylene/alpha-olefin copolymer. The inner layer comprises a thermoplastic elastomer. The second outer layer comprises a second ethylene/alpha-olefin copolymer. The inner layer is between the first outer layer and the second outer layer, and is chemically different from the first outer layer and the second outer layer. The multilayer film has an O -transmission rate of from about 500 to 50,000 cc/m 24 hr STP, and a modulus of at least 60,000 psi. The multilayer film is especially useful for the packaging of O -sensitive products, such as produce. The high modulus of the film enhances its performance in form-fill-and-seal operations.