Stock material or miscellaneous articles – Composite – Of addition polymer from unsaturated monomers
Patent
1989-07-07
1990-07-03
Buffalow, Edith
Stock material or miscellaneous articles
Composite
Of addition polymer from unsaturated monomers
428521, 428910, B52B 2708
Patent
active
049386832
ABSTRACT:
A coextruded multiple layer film is oriented in primarily the longitudinal direction, and comprises a core layer comprising butadiene styrene copolymer or copolyester, outer layers comprising ethylene propylene copolymer, polypropylene, or blends thereof, and intermediate layers which bond the outer layers to the core layer and comprise an ethylene copolymer.
REFERENCES:
patent: 4440824 (1984-04-01), Bonis
patent: 4464439 (1984-08-01), Castelein
patent: 4626455 (1986-12-01), Karabedian
patent: 4769261 (1988-09-01), Hazelton et al.
Buffalow Edith
Lee, Jr. William D.
Quatt Mark B.
Toney John J.
W. R. Grace & Co.,-Conn.
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