CA2016081A1 - Deposition of silver layer on nonconducting substrate - Google Patents

Deposition of silver layer on nonconducting substrate

Info

Publication number
CA2016081A1
CA2016081A1 CA2016081A CA2016081A CA2016081A1 CA 2016081 A1 CA2016081 A1 CA 2016081A1 CA 2016081 A CA2016081 A CA 2016081A CA 2016081 A CA2016081 A CA 2016081A CA 2016081 A1 CA2016081 A1 CA 2016081A1
Authority
CA
Canada
Prior art keywords
silver
substrate
aqueous solution
salt
deposition
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2016081A
Other languages
French (fr)
Other versions
CA2016081C (en
Inventor
Billy V. Sodervall
Thomas Lundeberg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bactiguard AB
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2016081A1 publication Critical patent/CA2016081A1/en
Application granted granted Critical
Publication of CA2016081C publication Critical patent/CA2016081C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/18—Pretreatment of the material to be coated
    • C23C18/20—Pretreatment of the material to be coated of organic surfaces, e.g. resins
    • C23C18/28—Sensitising or activating
    • C23C18/285—Sensitising or activating with tin based compound or composition
    • A—HUMAN NECESSITIES
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    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
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    • A61L15/18—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing inorganic materials
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    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
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    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
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    • A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
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Abstract

Metallic silver is deposited upon the surface of a nonconducting substrate using a multi-step wet deposition process. The surface is cleaned, and then activated in an aqueous solution containing stannous tin. The silver is deposited as a colloidal material from an aqueous solution of a silver-containing salt, a reduction agent that reduces the salt to form the metallic silver, and a deposition control agent that prevents the silver from nucleating throughout the solution. After the substrate is coated, the coating is stabilized in an aqueous solution of a salt of a metal from the platinum group or gold, dissolved in dilute hydrochloric acid. The process is particularly effective for depositing uniform films of 2 to 2000 Angstroms thickness, which strongly adhere to the substrate.
CA002016081A 1989-05-04 1990-05-04 Deposition of silver layer on nonconducting substrate Expired - Lifetime CA2016081C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US34701689A 1989-05-04 1989-05-04
US347,016 1994-11-30

Publications (2)

Publication Number Publication Date
CA2016081A1 true CA2016081A1 (en) 1990-11-04
CA2016081C CA2016081C (en) 1999-04-06

Family

ID=23361985

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002016081A Expired - Lifetime CA2016081C (en) 1989-05-04 1990-05-04 Deposition of silver layer on nonconducting substrate

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Country Link
US (4) US5395651A (en)
EP (3) EP0693576A1 (en)
JP (3) JP2645431B2 (en)
AT (1) ATE134719T1 (en)
AU (1) AU642872B2 (en)
CA (1) CA2016081C (en)
DE (1) DE69025495T2 (en)
DK (1) DK0400349T3 (en)
ES (1) ES2086328T3 (en)
FI (1) FI95816C (en)
GR (1) GR3019899T3 (en)
NO (1) NO304746B1 (en)

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