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US 5,306,542 AGranted
Plastic closure with compression molded sealing liner
AssigneeOwens-Illinois Closure Inc.
InventorJohn W. Bayer
Life of this patent
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Abstract
A plastic closure including a base wall having an inner surface, a peripheral skirt extending from the base wall and a liner on the inner surface of the base wall. The liner includes (a) an ethylene vinyl acetate composition, (b) a primary fatty acid amide and (c) a bis-fatty acid amide. Preferably the primary fatty acid amide comprises an oleamide or an erucamide, and the bis-fatty acid amide comprises ethylene-bis-stearamide.
Claims2
A plastic closure comprising
- a base wall having an inner surface,
- a peripheral skirt extending from said base wall, and
- a liner compression molded on said inner surface of said base wall,
- said liner comprising
- (a) ethylene vinyl acetate composition,
- (b) a primary fatty acid amide selected from the group consisting of an oleamide and an erucamide,
- (c) a bis-fatty acid amide,
- the total amount of primary fatty acid amide and bis-fatty acid amide being about 0.5%-1.5% by weight based on the weight of the ethylene vinyl acetate,
- the ethylene vinyl acetate comprising about 85%-94% by weight of polyethylene and about 6%-15% by weight of vinyl acetate,
- the ratio of primary fatty acid amide to bis-fatty acid amide ranges between 25:75 and 75:25, by weight.
7 more elements
Dependencies are inferred from the claim text.