Filament with easily removed protective coating and methods for stripping the same
First Claim
14. Apparatus for removing a protective coating applied to a filament made of a material that is easily removed with a benign solvent such as water, or if necessary, acetone or ethanol, comprising a device containing a hot aqueous solution of the benign solvent and pure hot water for dissolving the protective coating from the filament being drawn through the device.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention provides a filament with an easily removable protective coating as well as a method and apparatus for applying the protective coating to the filament during a draw process that can be easily removed with a reasonably benign solvent such as water, or if necessary, acetone or ethanol. The protective coating is water-soluble and can be easily dissolved in-line with a spooling process. The coating material may include a water-soluble “wax-like” material called Aquabond 65, distributed by Aquabond Technologies, as well as other grades of Aquabond such Aquabond 55 and Aquabond 85, which behave essentially the same but are dissolved at different temperatures.
117 Citations
33 Claims
-
14. Apparatus for removing a protective coating applied to a filament made of a material that is easily removed with a benign solvent such as water, or if necessary, acetone or ethanol, comprising
a device containing a hot aqueous solution of the benign solvent and pure hot water for dissolving the protective coating from the filament being drawn through the device.
-
25-1. Apparatus according to claim 14, wherein the apparatus has a camera or other suitable device for viewing the condition of the filament stripped of solvent.
-
29. A coated filament, comprising:
-
an elongated filament substrate; and
the substrate having a filament coating surrounding the substrate, said coating being made of a water-soluble material. - View Dependent Claims (30, 31, 32, 33)
-
Specification