Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Adhesive outermost layer
Patent
1982-08-06
1984-01-03
Herbert, Jr., Thomas J.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Adhesive outermost layer
15624411, 428 35, 428349, 428458, 428461, 428515, 428516, 428913, C09J 702, B32B 1508
Patent
active
044242565
ABSTRACT:
The invention provides improved films and pouches made therefrom for use in sterile packaging, wherein the package and product are sterilized after the process of filling and sealing the pouch. The improved films are a family of foil-based, multiple layer structures incorporating an improved combination of layers which form the sealant layer and the adhesive bonding to the foil layer. The sealant layer is linear low density polyethylene. The layer adjacent the sealant layer is a blend of 20% to 80% propylene ethylene copolymer and 80% to 20% linear low density polyethylene. The foil layer is primed with an anhydride modified propylene-based primer. Additional layers comprising propylene based polymers may be used between the blend layer and the primer.
REFERENCES:
patent: 4190477 (1980-02-01), Ossian et al.
patent: 4363841 (1982-12-01), Snow
Christensen Ronald C.
Genske Roger P.
Kester Dennis E.
Ossian William F.
American Can Company
Bowie Stuart S.
Herbert, Jr. Thomas J.
Wilhelm Thomas D.
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