Process of silvering articles having a base of polyamides
AssigneeRhone-Poulenc-Textile
InventorAndre Arsac
Life of this patent
Estimating the term…
Abstract
Process of silvering articles such as textile articles in order to make them conductive and the articles silvered by this process. The articles are subjected to the action of a reducing agent which swells the substrate and then to the action of an ammoniacal silver nitrate solution. When a polyamide is used as a substrate, a polyphenol is an acceptable reducing agent. Yarns and fibers treated by the process can be used for the manufacture of floor coverings, wall coverings, and articles of clothing as well as for the manufacture of heating articles.
Claims8
A process for improving the antistatic properties of an article made of a polyamide polymer by covering at least one surface of said polyamide article with a layer of silver consisting essentially of
- treating at least one surface of said article with an aqueous bath of a polyhydroxy benzene reducing agent which is a swelling agent for said polyamide, with a concentration of about 1% to about 30% by weight at a temperature between room temperature and 90.degree. C. to permit said polyhydroxy benzene reducing agent to swell said polyamide, and then
- treating the resulting product with an ammoniacal silver nitrate solution.
Dependencies are inferred from the claim text.