Process for manufacturing coated plastic body
First Claim
1. A method for manufacturing coated synthetic bodies, comprising subjecting a surface of said bodies to a pretreatment in an atmosphere of excited gas at least predominantly formed by a noble gas and at least one of nitrogen and of hydrogen, limiting the ion energy of ions of said excited gas upon said surface to be coated to at most 50 eV, and coating said pre-treated surface.
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Abstract
A process is provided for producing coated synthetic bodies during which, before the coating, the surface to be coated is subjected to a pretreatment in an excited gas atmosphere. The surface is then coated. The gas atmosphere is predominantly formed of a noble gas and nitrogen and/or hydrogen, and the ionic energy in the gas atmosphere and in the are of the surface to be coated is not more than 50 eV. The ionic energy is selected to be not more than 20 eV, preferable not more than 10 eV. The gas atmosphere is excited by means of a plasma discharge or by means of UV radiation.
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20 Claims
- 1. A method for manufacturing coated synthetic bodies, comprising subjecting a surface of said bodies to a pretreatment in an atmosphere of excited gas at least predominantly formed by a noble gas and at least one of nitrogen and of hydrogen, limiting the ion energy of ions of said excited gas upon said surface to be coated to at most 50 eV, and coating said pre-treated surface.
Specification