Stock material or miscellaneous articles – Hollow or container type article – Polymer or resin containing
Patent
1977-04-29
1978-11-28
Ives, P. C.
Stock material or miscellaneous articles
Hollow or container type article
Polymer or resin containing
428515, 428516, 428520, 428420, 156272, 206484, 206497, B65D 8530, B32B 2708
Patent
active
041276884
ABSTRACT:
The strength of a heat seal which bonds irradiatively cross-linkable thermoplastic materials together can be significantly improved by irradiating the seal area after sealing is completed. This technique is especially effective for improving the seal strength of packaging film laminates such as those having a layer of saran and a layer of ethylene vinyl acetate copolymer.
REFERENCES:
patent: 3617419 (1971-11-01), Fischer
patent: 3936565 (1976-02-01), Good
patent: 3997385 (1976-12-01), Osborne
Bieler Anne C.
Howe, Jr. Milton A.
Hardaway John B.
Ives P. C.
Lee, Jr. William D.
Toney John J.
W. R. Grace & Co.
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