Disposable package for liquid material and method of making same

Details Disposable package for liquid material and method of making same Disposable package for liquid material and method of making same

1987-02-02

1988-11-22

Kittle, John E.

Stock material or miscellaneous articles

Hollow or container type article

Paper containing

53289, 53329, 206 4411, 206 4511, 2064842, 206486, 428522, 428 357, B65D 124, B65B 728

Patent

active

047865342

ABSTRACT:
A disposable blister-type package for containing a small quantity of liquid material such as nail enamel including a volatile solvent, constituted of a thermoformed tray defining a liquid-holding cavity with a surrounding rim and a lid covering the cavity and secured to the rim, wherein at least the facing surface portions of the tray and lid are formed of acrylonitrile methylacrylate copolymer. The facing methylacrylate surfaces of the lid and tray are directly bonded together around the cavity to form a leakproof seal that is readily peelable. The seal region of the lid surface is embossed, during the sealing operation, with a pattern of serrations to facilitate peeling. A disposable applicator for the liquid may be enclosed, and similarly sealed, within a second tray cavity also covered by the lid and isolated by the seal from the liquid-holding cavity.

REFERENCES:
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patent: 2561400 (1951-07-01), Morrell
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patent: 3759375 (1973-09-01), Nappi
patent: 3835834 (1974-09-01), Brown et al.
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patent: 4236652 (1980-12-01), Beguhn
patent: 4324331 (1982-04-01), Ignasiak
patent: 4474016 (1984-10-01), Winchell
patent: 4537305 (1985-08-01), Takanashi
patent: 4582756 (1986-04-01), Niinuma et al.

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