Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Layered – stratified traversely of length – or multiphase...
Patent
1991-02-28
1992-06-16
Thurlow, Jeffery
Plastic and nonmetallic article shaping or treating: processes
Forming continuous or indefinite length work
Layered, stratified traversely of length, or multiphase...
15624425, 264108, 264171, 4251311, B29C 4706
Patent
active
051223228
ABSTRACT:
A composite, thermoplastic resin film includes a matrix in the form of a film, and formed of a first thermoplastic resin and a plurality of substantially continuous tapes dispersed within the matrix film with the plane of each of the tapes being substantially parallel with the plane of the matrix film and each formed of a second thermoplastic resin different from the first resin, a portion of the tapes having a width of at least 200 times the thickness of the composite film so that the composite film has an oxygen permeation rate of 0.12-900 cc/m.sup.2.day.atm at a temperature of 20.degree. C. and a relative humidity of 65%. A method for producing the thermoplastic resin film includes mixing melts of the first and second resins using a static mixer, and extruding the mixed melt discharged from the mixer as is through a die. The film has an excellent gas barrier property and is suitably used for the preparation of cushioning materials.
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JSP Corporation
Thurlow Jeffery
Yee Stephen F. K.
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