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US4775556A Expired / Lapsed US ⏱️ 0.0 years remaining

Process for metallized imaging

Assignee: 3M Co
•
Filing: 1986-08-05
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Granted: 1988-10-04
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Expires: 2006-08-05
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Abstract

Abstract Formation of well-adhered metal layers on aromatic polymeric substrates through a two-step process is based upon reversible charge storage in the electroactive center-containing polymeric substrate. Articles particularly useful for electronic, imaging and solar applications are produced. The process disclosed may be a totally additive process such that articles can be produced in a continuous manner.

Inventors

  • 👤 Larry J. Krause
  • 👤 Jack A. Rider

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 16:09
CPC Classifications
C; C23; C23C; C23C18/00; C23C18/16; C23C18/1601; C23C18/1603; C23C18/1605; C23C18/1633; C23C18/1655; C23C18/166; C23C18/1689; C23C18/18; C23C18/20; C23C18/2006; C23C18/2046; C23C18/2073; C23C18/208; C23C18/31; C23C18/32; C23C18/34; C23C18/36; C23C18/38

Claims Analysis

Total Claims: 24
Claim 1
Independent Claim 218 words
A process for depositing an image of metal onto at least a portion of a polymer surface comprising the steps of (1) injecting a stored charge into a polymer surface having electroactive sites, and (2) reducing metal ions with said stored charge to form metal in or on said polymer surface said process being characterized by the further step of applying a masking means to said polymer surface wherein said masking means applied to said polymeric surface before injecting said stored charge and wherein said process for depositing an image includes the steps of contacting said at least one polymeric surfae with a first solution wherein at least 10 molar present of all negative charge intercalation ions within said first solution are monoatomic ions or transition metal complexes thereby reducing the polymer of said at least one polymeric surface without substantial plating of metal onto said at least one polymeric surface, then contacting said at least one surface of the reduced polymer with a second solution having reducible metal cations therein so that the reduced polymer of said at least one polymeric surface reduces the metal cations to form metal in the form selected from the group consisting of metal film on said at least one polymer surface and metal particles within said at least one polymer surface.
Claim 2
Dependent Claim 218 words
A process for depositing an image of metal onto at least a portion of a polymer surface comprising the steps of (1) injecting a stored charge into a polymer surface having electroactive sites, and (2) reducing metal ions with said stored charge to form metal in or on said polymer surface said process being characterized by the further step of applying a masking means to said polymer surface wherein said masking means applied to said polymeric surface before injecting said stored charge and wherein said process for depositing an image includes the steps of contacting said at least one polymeric surfae with a first solution wherein at least 10 molar present of all negative charge intercalation ions within said first solution are monoatomic ions or transition metal complexes thereby reducing the polymer of said at least one polymeric surface without substantial plating of metal onto said at least one polymeric surface, then contacting said at least one surface of the reduced polymer with a second solution having reducible metal cations therein so that the reduced polymer of said at least one polymeric surface reduces the metal cations to form metal in the form selected from the group consisting of metal film on said at least one polymer surface and metal particles within said at least one polymer surface.
Claim 3
Dependent Claim 228 words
A process for depositing an image of metal onto at least a portion of a polymer surface comprising the steps of (1) injecting a stored charge into a polymer surface having electroactive sites, and (2) reducing metal ions with said stored charge to form metal in or on said polymer surface said process being characterized by the further step of applying a masking means to said polymer surface wherein said masking means is applied to said polymer surface after injecting said stored charge but before reduction of said metal ions and wherein said process for depositing an image includes the steps of contacting said at least one polymeric surface with a first solution wherein at least 10 molar percent of all negative charge intercalation ions within said first solution are simple or complex negative charge intercalation ions, thereby reducing the polymer of said said at least one polymeric surface without substantial plating of metal onto said at least one polymeric surface, then contacting said at least one surface of the reduced polymer with a second solution having reducible metal cations therein so that the reduced polymer of said at least one polymeric surface reduces the metallic ion to form metal in the form selected from the group consisting of metal film on said at least one polymer surface and metal particles within said at least one polymer surface.
Claim 4
Dependent Claim 228 words
A process for depositing an image of metal onto at least a portion of a polymer surface comprising the steps of (1) injecting a stored charge into a polymer surface having electroactive sites, and (2) reducing metal ions with said stored charge to form metal in or on said polymer surface said process being characterized by the further step of applying a masking means to said polymer surface wherein said masking means is applied to said polymer surface after injecting said stored charge but before reduction of said metal ions and wherein said process for depositing an image includes the steps of contacting said at least one polymeric surface with a first solution wherein at least 10 molar percent of all negative charge intercalation ions within said first solution are simple or complex negative charge intercalation ions, thereby reducing the polymer of said said at least one polymeric surface without substantial plating of metal onto said at least one polymeric surface, then contacting said at least one surface of the reduced polymer with a second solution having reducible metal cations therein so that the reduced polymer of said at least one polymeric surface reduces the metallic ion to form metal in the form selected from the group consisting of metal film on said at least one polymer surface and metal particles within said at least one polymer surface.
Claim 5
Dependent Claim 30 words
The process of claim 1 wherein said simple or complex negative charge intercalation ions comprise at least 60 molar percent of all negative charge intercalation ions in said first solution.
Claim 6
Dependent Claim 29 words
The process of claim 2 wherein said simple or complex negative charge intercalation ions at least 60 molar percent of all negative charge intercalation ions in said first solution.
Claim 7
Dependent Claim 29 words
The process of claim 1 wherein said simple or complex negative charge intercalation ion at least 90 molar percent of all negative charge intercalation ions in said first solution.
Claim 8
Dependent Claim 29 words
The process of claim 2 wherein said simple or complex negative charge intercalation ion at least 90 molar percent of all negative charge intercalation ions in said first solution.
Claim 9
Dependent Claim 27 words
The process of claim 1 wherein said simple or complex negative charge intercalation ions 100 molar percent of the negative charge intercalation ions in said first solution.
Claim 10
Dependent Claim 28 words
The process of claim 2 wherein said simple or complex negative charge intercalation ion comprise 100 molar percent of the negative charge intercalation ions in said first solution.
Claim 11
Dependent Claim 231 words
A process for depositing an image of metal onto at least a portion of a polymer surface comprising the steps of (1) injecting a stored charge into a polymer surface having electroactive sites, and (2) reducing metal ions with said stored charge to form metal in or on said polymer surface said process being characterized by the further step of applying a masking means to said polymer surface before injecting said stored charge and wherein said process for depositing an image includes the steps of contacting said at least one polymeric surface with a first solution wherein at lest 10 molar percent of all negative charge intercalation ions within said first solution are simple or complex negative charge intercalation ions, thereby reducing the polymer of said at least one polymeric surface without substantial plating of metal onto said at least one polymeric surface, then contacting said at least one surface of the reduced polymer with a second solution having reducible metal cations therein so that the reduced polymer of said at least one polymeric surface reduces the metallic ion to form metal in a form selected from the group consisting of metal film on said at least one polymer surface and metal particles within said at least one polymeric surface wherein said negative charge intercalation ions are selected from the group consisting of Te 2- ions, and Co(I) and V(II) complexes.
Claim 12
Dependent Claim 231 words
A process for depositing an image of metal onto at least a portion of a polymer surface comprising the steps of (1) injecting a stored charge into a polymer surface having electroactive sites, and (2) reducing metal ions with said stored charge to form metal in or on said polymer surface said process being characterized by the further step of applying a masking means to said polymer surface before injecting said stored charge and wherein said process for depositing an image includes the steps of contacting said at least one polymeric surface with a first solution wherein at lest 10 molar percent of all negative charge intercalation ions within said first solution are simple or complex negative charge intercalation ions, thereby reducing the polymer of said at least one polymeric surface without substantial plating of metal onto said at least one polymeric surface, then contacting said at least one surface of the reduced polymer with a second solution having reducible metal cations therein so that the reduced polymer of said at least one polymeric surface reduces the metallic ion to form metal in a form selected from the group consisting of metal film on said at least one polymer surface and metal particles within said at least one polymeric surface wherein said negative charge intercalation ions are selected from the group consisting of Te 2- ions, and Co(I) and V(II) complexes.
Claim 13
Dependent Claim 238 words
A process for depositing an image of metal onto at least a portion of a polymer surface comprising the steps of (1) injecting a stored charge into a polymer surface having electroactive sites, and (2) reducing metal ions with said stored charge to form metal in or on said polymer surface said process being characterized by the further step of applying a masking means to said polymer surface after injecting said stored charge but before reduction of said metal ions and wherein said process for depositing an image includes the steps of contacting said at least one polymeric surface with a first solution wherein at least 10 molar precent of all negative charge intercalation ions within said first solution are simple or complex negative charge intercalation ions, thereby reducing the polymer of said at least one polymeric surface without substantial plating of metal onto said at least one polymeric surface, then contacting said at least one surface of the reduced polymer with a second solution having reducible metal cations therein so that the reduced polymer of said at least one polymeric surface reduces the metallic ion to form metal in a form selected from the group consisting of metal film on said at least one polymer surface and metal particles within said at least one polymeric surface wherein said negative charge intercalation ions are selected from the group consisting of Te 2- ions, and Co(I) and V(II) complexes.
Claim 14
Dependent Claim 238 words
A process for depositing an image of metal onto at least a portion of a polymer surface comprising the steps of (1) injecting a stored charge into a polymer surface having electroactive sites, and (2) reducing metal ions with said stored charge to form metal in or on said polymer surface said process being characterized by the further step of applying a masking means to said polymer surface after injecting said stored charge but before reduction of said metal ions and wherein said process for depositing an image includes the steps of contacting said at least one polymeric surface with a first solution wherein at least 10 molar precent of all negative charge intercalation ions within said first solution are simple or complex negative charge intercalation ions, thereby reducing the polymer of said at least one polymeric surface without substantial plating of metal onto said at least one polymeric surface, then contacting said at least one surface of the reduced polymer with a second solution having reducible metal cations therein so that the reduced polymer of said at least one polymeric surface reduces the metallic ion to form metal in a form selected from the group consisting of metal film on said at least one polymer surface and metal particles within said at least one polymeric surface wherein said negative charge intercalation ions are selected from the group consisting of Te 2- ions, and Co(I) and V(II) complexes.
Claim 15
Dependent Claim 19 words
The process of claim 1 wherein said polymer of said at least one polymeric surface contains pyromellitimide electroactive sites.
Claim 16
Dependent Claim 19 words
The process of claim 2 wherein said polymer of said at least one polymeric surface contains pyromellitimide electroactive sites.
Claim 17
Dependent Claim 19 words
The process of claim 7 wherein said polymer of said at least one polymeric surface contains pyromellitimide electroactive sites.
Claim 18
Dependent Claim 19 words
The process of claim 8 wherein said polymer of said at least one polymeric surface contains pyromellitimide electroactive sites.
Claim 19
Dependent Claim 19 words
The process of claim 9 wherein said polymer of said at least one polymeric surface contains pyromellitimide electroactive sites.
Claim 20
Dependent Claim 19 words
The process of claim 10 wherein said polymer of said at least one polymeric surface contains pyromellitimide electroactive sites.
Claim 21
Dependent Claim 29 words
The process of claim 1 wherein after at least 50% of the reduced polymer is oxidized by the metallic ion to form metal, a second metallization process is begun.
Claim 22
Dependent Claim 29 words
The process of claim 2 wherein after at least 50% of the reduced polymer is oxidized by the metallic ion to form metal, a second metallization process is begun.
Claim 23
Dependent Claim 255 words
A process for depositing an image of metal onto at least a portion of a polymer surface comprising the steps of (1) injecting stored charge into a polymer surface having electractive sites, and (2) reducing metal ions with said stored charge to form metal in or on said polymer surface, wherein said injecting a stored charge comprises contacting said at least one polymeric surface with a first solution wherein at least 10 molar percent of all negative charge intercalation ions within said first solution are selected from the group consisting of monoatomic ions and complexed transistion metals as negative charge intercalation ions and wherein the half wave potential of said at least 10 molar percent of said negative charge intercalation ions is negative with respect the half-wave potential of the electroactive sites in said polymer surface, thereby reducing the polymer of said at least one polymeric surface without substantial plating of metal onto said at least one polymeric surface, said reducing metal ions comprises contacting said at least one surface of the reduced polymer with a second solution having reducible metal cations therein so that the reduced polymer of said at least one polymeric surface reduces said reducible metal cations to form metal in a form selected from the group consisting of metal film on said at least one polymer surface and metal particles within said at least one polymer surface, and said process having the further step of applying a masking means to said polymer surface either before step (1) or before step (2).
Claim 24
Dependent Claim 255 words
A process for depositing an image of metal onto at least a portion of a polymer surface comprising the steps of (1) injecting stored charge into a polymer surface having electractive sites, and (2) reducing metal ions with said stored charge to form metal in or on said polymer surface, wherein said injecting a stored charge comprises contacting said at least one polymeric surface with a first solution wherein at least 10 molar percent of all negative charge intercalation ions within said first solution are selected from the group consisting of monoatomic ions and complexed transistion metals as negative charge intercalation ions and wherein the half wave potential of said at least 10 molar percent of said negative charge intercalation ions is negative with respect the half-wave potential of the electroactive sites in said polymer surface, thereby reducing the polymer of said at least one polymeric surface without substantial plating of metal onto said at least one polymeric surface, said reducing metal ions comprises contacting said at least one surface of the reduced polymer with a second solution having reducible metal cations therein so that the reduced polymer of said at least one polymeric surface reduces said reducible metal cations to form metal in a form selected from the group consisting of metal film on said at least one polymer surface and metal particles within said at least one polymer surface, and said process having the further step of applying a masking means to said polymer surface either before step (1) or before step (2).

References Cited (Backward Citations)

US4459330A Cited
US4617204A Cited
US4512855A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1991-10-04 1992-04-04 1992-10-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1995-10-04 1996-04-04 1996-10-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1999-10-04 2000-04-04 2000-10-04 $7700.00 Window Closed / Lapsed

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