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公开(公告)号：CA2072398A1
公开(公告)日：1993-02-13
申请号：CA2072398
申请日：1992-06-25
Applicant: GEN ELECTRIC
Inventor： ZARNOCH KENNETH P
Abstract: RD-21,551 METHOD OF PREPARING POLYMER SURFACES FOR SUBSEQUENT PLATING THEREON AND IMPROVED METAL-PLATED PLASTIC ARTICLES MADE THEREFROM Method of modifying an aromatic polymer surface to improve adhesion of a metal layer thereon and to the articles produced therefrom. The surface of the aromatic polymer such as polycarbonate, is nitrated by a contact with a nitrating solution such as a mixture of nitric and sulfuric acid and then hydroxylated by a contact with a hydroxylating solution such as ammonium hydroxide. The hydroxylated surface is thus chemically modified to become hydrophilic. The chemically modified surface is electrolessly plated with a primary metal layer. A secondary metal layer is then electrolessly or electrolytically applied on top of the primary metal layer until a metal layer of a desired thickness is attained. The present invention further discloses articles such as an EMI shielded enclosure or a printed circuit board having metal layers as an EMI shield or a conductive metal trace pattern respectively.
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公开(公告)号：DE69605954T2
公开(公告)日：2000-07-27
申请号：DE69605954
申请日：1996-03-07
Applicant: GEN ELECTRIC
Inventor： GUIDA RENATO , ZARNOCH KENNETH P
Abstract: An anti-scatter x-ray grid for medical diagnostic radiography and a method for fabricating includes a substrate having channels therein of material that is substantially non-absorbent of x-radiation and absorbing material in the channels including material that is substantially absorbent of x-radiation. The substrate preferably comprises material capable of remaining stable at the melting temperature of the absorbing material.
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公开(公告)号：DE69605954D1
公开(公告)日：2000-02-10
申请号：DE69605954
申请日：1996-03-07
Applicant: GEN ELECTRIC
Inventor： GUIDA RENATO , ZARNOCH KENNETH P
Abstract: An anti-scatter x-ray grid for medical diagnostic radiography and a method for fabricating includes a substrate having channels therein of material that is substantially non-absorbent of x-radiation and absorbing material in the channels including material that is substantially absorbent of x-radiation. The substrate preferably comprises material capable of remaining stable at the melting temperature of the absorbing material.
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