Stock material or miscellaneous articles – Composite – Of polycarbonate
Patent
1989-11-15
1992-01-28
Sluby, P. C.
Stock material or miscellaneous articles
Composite
Of polycarbonate
4284235, 4284237, 4284242, 4284244, 4284246, 4284247, 4284248, 4284735, 428451, 4284752, 4284763, 4284769, 428483, 428516, 428517, 428518, 428520, 428521, 2641761, 264241, 525 71, B32B 2736, C08L 5104
Patent
active
050843524
ABSTRACT:
Multilayered barrier film products providing gas and moisture barrier properties. The film products comprise at least a first polymer film having low permeability to moisture and a heterogeneous polymer blend film containing a gas barrier polymer and a second polymer distributed in the gas barrier polymer, so as to allow the heterogeneous polymer blend film to adhere to the first polymer film. A method for the preparation of multilayered barrier film products includes the steps of forming a gas barrier polymer film from a heterogeneous polymer blend containing a gas barrier polymer and a second polymer and, bonding a moisture barrier polymer film to at least one side of the gas barrier polymer film. The method can be practiced utilizing conventional coextrusion equipment.
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Technical Bulletin SC:94187 from Shell Co. entitled "Kraton FG 1901X Rubber".
Coffey Gerald P.
Melamud Lucy
Percec Elena S.
Curatolo Joseph G.
Evans Larry W.
Phillips Sue E.
Sluby P. C.
The Standard Oil Company
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