System for closure and subsequent opening of sterilizable contai

Details System for closure and subsequent opening of sterilizable contai System for closure and subsequent opening of sterilizable contai

1991-07-18

1992-09-08

Herbert, Jr., Thomas J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

428 341, 428 40, 428349, 428458, 428461, B32B 1508

Patent

active

051457377

ABSTRACT:
The system for closure and subsequent opening of the sterilizable container is made up of a cover having its sealing layer which bonds to the cover where the sealing layer is made of a polymeric material such as high density polyethylene, polypropylene and polyester and the container, at the point where the cover is sealed to the container, is also made of the same polymeric material as the cover's sealing layer. Between 15 to 50% by weight of inert filler is used. The cover and container are joined by deep soldering so that the action of pulling the cover off of the container causes an internal breaking of the material containing the inert filler. An inert filler is incorporated into the sealing layer and can also be incorporated into the container where the cover and container are joined.

REFERENCES:
patent: 4673601 (1987-06-01), Lamping et al.

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