Stock material or miscellaneous articles – Structurally defined web or sheet – Including components having same physical characteristic in...
Patent
1978-08-30
1980-02-12
Ansher, Harold
Stock material or miscellaneous articles
Structurally defined web or sheet
Including components having same physical characteristic in...
229 35R, 229 87F, 426412, 428335, 428339, 428483, 428516, 428518, 428520, 428523, 428910, B65D 6502, B32B 3128, B32B 2736, B32B 2732
Patent
active
041884434
ABSTRACT:
The multi-layer polyester/polyolefin shrink film of this invention provides a combination of shrink tension, hot seal strength, sealability, and shrink temperature range heretofore unobtainable in an oriented, monolayer polyolefin material. The preferred film has five layers in which the middle layer comprises a polyester or copolyester, two inner layers adjacent the middle layer comprise ethylene-vinyl acetate copolymer, and the skin or outer layers comprises an ethylene-propylene copolymer.
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Mueller Walter B.
Schirmer Henry G.
Schoenberg Julian H.
Weinberg Alan S.
Ansher Harold
Hardaway John B.
Lee, Jr. William D.
Toney John J.
W. R. Grace & Co.
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