Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Physical dimension specified
Patent
1987-11-13
1989-11-07
Buffalow, Edith
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Physical dimension specified
428 349, 428482, 428483, 428516, 428910, B32B 702
Patent
active
048791776
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: 4188443 (1980-02-01), Mueller et al.
patent: 4258166 (1981-03-01), Canterino et al.
patent: 4355076 (1982-10-01), Gash
patent: 4622268 (1986-11-01), Yatsu et al.
patent: 4713269 (1987-12-01), Jabarin et al.
patent: 4716061 (1987-12-01), Winter
Buffalow Edith
Lee, Jr. William D.
Quatt Mark B.
Toney John J.
W. R. Grace & Co.
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