Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Physical dimension specified
Patent
1989-06-09
1991-07-09
Sluby, P. C.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Physical dimension specified
428516, 428518, 428520, 428910, 2641761, 524109, 524306, B32B 2708, C08L 2708, C08K 515
Patent
active
050305115
ABSTRACT:
This invention relates to films made from vinylidene chloride copolymers. Specifically, this invention relates to a method and composition for lowering the oxygen permeability and enhancing the thermal stability and enhancing the melt shear stability of packaging films having a layer of vinylidene chloride copolymer film by adding a processing aid such as an epoxy resin to vinylidene chloride copolymer of low molecular weight. The conventional stabilizer/plasticizer combination of epoxy resin and 2-ethyl-hexyl diphenyl phosphate may be employed with the vinylidene chloride copolymer. The layer of vinylidene chloride copolymer can be as thin as 0.18 mil.
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U.S. Vikoflex.
U.S. Ency. of Polymer Science, pp. 174 & 175 of vol. 14.
U.S. Monoplex S-73, C. P. Hall Company.
U.S. Monoplex S-75, C. P. Hall Company.
Lee, Jr. William D.
Skord Jennifer L.
Sluby P. C.
Toney John J.
W. R. Grace & Co.,-Conn.
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