Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1979-07-09
1981-06-23
Ansher, Harold
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
15624411, 15624417, 156311, 264181, 2642107, 426412, 428335, 428483, 428523, 428910, B32B 3116, B32B 3128, B32B 2732, B32B 2736
Patent
active
042749000
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 actate copolymer, and the skin or outer layers comprise an ethylene-propylene copolymer.
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Mueller Walter B.
Schirmer Henry G.
Schoenberg Julian H.
Weinberg Alan S.
Ansher Harold
Harps Joseph P.
Lee, Jr. William D.
Toney John J.
W. R. Grace & Co.
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