Stock material or miscellaneous articles – Composite – Of silicon containing
Reexamination Certificate
1997-09-02
2001-04-24
Hess, Bruce H. (Department: 1774)
Stock material or miscellaneous articles
Composite
Of silicon containing
C428S336000, C428S413000, C428S537500
Reexamination Certificate
active
06221497
ABSTRACT:
BACKGROUND OF THE INVENTION
The invention relates generally to coated substrates and more particularly to a low friction coated substrate which can be used to form applicators for tampons and other useful objects.
One conventional apparatus for inserting a tampon involves the use of a paper based tube having a tampon stored therein. The tube is inserted in place and the tampon pushed therefrom. However, many users find this conventional tampon applicator to be unsatisfactory in terms of ease of insertion and appearance. An alternative applicator is formed of plastic and has a glossy finish, suggesting low friction. However, such applicators are perceived to have environmental problems.
Accordingly, it is desirable to provide an improved low friction material which can be used to form a tampon applicator or other useful objects, which overcome drawbacks of the prior art.
SUMMARY OF THE INVENTION
Generally speaking, in accordance with the invention, a coated substrate and method of forming the substrate are provided. The substrate can have high gloss and good slip properties. Such a substrate can be formed with a paper base having a high slip coating thereon. The coating can include an active silicone-based slip agent and other suitable ingredients. The final product can exhibit a static coefficient of friction less than or equal to 0.4 gr
f
/gr
w.
and a kinetic coefficient of friction less than or equal to 0.05 gr
f
/gr
w
and is well suited to be formed into a tampon applicator.
Accordingly, it is an object of the invention to provide an improved coated substrate.
Another object of the invention is to provide an improved method of forming the material, to be used as a coated substrate;
Yet another object of the invention is to provide an improved material and method for forming the material to be used as an applicator for a tampon.
The invention accordingly comprises the several steps and the relation of one or more of such steps with respect to each of the others, and the article possessing the features, properties, and the relation of elements, which are exemplified in the following detailed disclosure, and the scope of the invention will be indicated in the claims.
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Roman Robert
Wittig James
Hess Bruce H.
Shewareged B.
Stroock & Stroock & Lavan LLP
Tekkote Corporation
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