Sealing member for a cap featuring excellent safety and...

Details Sealing member for a cap featuring excellent safety and... Sealing member for a cap featuring excellent safety and...

2005-04-12

2005-04-12

Cooney, Jr., John M. (Department: 1711)

Stock material or miscellaneous articles

Composite

Of polyamidoester

C215S316000, C215S341000, C215S343000, C215S344000, C215S346000, C215S347000, C215S348000, C428S035800, C428S036500, C428S036900, C428S423100, C428S423700

Reexamination Certificate

active

06878449

ABSTRACT:
A sealing member for a cap featuring excellent cap performance as well as excellent safety and environmental friendliness, and a metallic cap. A foamed polyurethane elastomer having a JIS A hardness of from 15 to 65 and a foaming magnification of from 1.1 to 10 times is used as the sealing member so as to obtain excellent sealing performance, durability, safety and environmental friendliness. The sealing member is provided for a metallic cap shell that has a polyester film formed on the inner surface of the cap, thereby to obtain a cap featuring excellent sealing performance, durability, safety and environmental friendliness.

REFERENCES:
patent: 1796728 (1931-03-01), Sharp
patent: 4818577 (1989-04-01), Ou-Yang

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