US4929422A
Expired / Lapsed
US
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Process for the adhesive metallization of synthetic materials
Assignee: Bayer Pharma AG
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Filing: 1988-03-14
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Granted: 1990-05-29
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Expires: 2008-03-14
Abstract
Abstract A process is disclosed for the adhesive metallization of synthetic materials, by means of pre-treatment of the synthetic materials and subsequent activation, as well as chemical and, if necessary, galvanic metal deposition, characterized by pre-treating the synthetic materials initially with an alkaline solution of an oxidation agent and then with a metal salt solution.
Inventors
- 👤 Hartmut Mahlkow
- 👤 Michael Romer
- 👤 Gunther Rosskamp
- 👤 Hubert-Matthias Seidenspinner
- 👤 Ludwig Stein
- 👤 Waltraud Strache
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:16
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/38; H05K3/381; C; C23; C23C; C23C18/00; C23C18/16; C23C18/18; C23C18/20; C23C18/22
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
54 words
In a process for adhesive metallization of synthetic material by pre-treatment of said material and subsequent activation, followed by chemical deposition, the improvement comprising the pre-treatment of said synthetic material with an alkaline solution of an oxidizing agent and then subsequently with a metal salt solution, and simultaneously with the pre-treatment applying ultrasonic waves.
Claim 2
Dependent Claim
54 words
In a process for adhesive metallization of synthetic material by pre-treatment of said material and subsequent activation, followed by chemical deposition, the improvement comprising the pre-treatment of said synthetic material with an alkaline solution of an oxidizing agent and then subsequently with a metal salt solution, and simultaneously with the pre-treatment applying ultrasonic waves.
Claim 3
Dependent Claim
22 words
The process according to claim 1, wherein said metal salt solution comprises a salt of iron, aluminum, zinc or a mixture thereof.
Claim 4
Dependent Claim
15 words
The process according to claim 1, wherein said metal salt solution comprises an aqueous solution.
Claim 5
Dependent Claim
23 words
The process according to claim 1, wherein said metal salt solution contains said metal salt in a concentration from 0.01 to 150 g/liter.
Claim 6
Dependent Claim
28 words
The process according to claim 1, wherein said oxidation agent is selected from the group consisting of iodine, bromine, chlorine, bromate, chromate, peroxidisulfate, peroxide, permanganate and mixtures thereof.
Claim 7
Dependent Claim
24 words
The process according to claim 1, wherein said alkaline solution of oxidation agent is contained in a concentration from 0.1 to 500 g/liter water.
Claim 8
Dependent Claim
37 words
The process according to claim 1, wherein said alkaline solution contains an alkali hydroxide selected from the group consisting of sodium hydroxide, potassium hydroxide, lithium hydroxide and mixtures thereof, in a concentration from 0.1 to 200 g/liter.
Claim 9
Dependent Claim
21 words
The process according to claim 1, wherein said synthetic material which is metallized is a synthetic based upon polyimide or polyetherimide.
Claim 10
Dependent Claim
49 words
The process according to claim 1, wherein said activation of said material is performed after said pre-treating by means of an activation solution containing palladium- or silver ions, further comprising subsequent pre-treatment with a reducing agent, followed by said chemical metal deposition by means of a chemical metal bath.
Claim 11
Dependent Claim
17 words
The process according to claim 9, wherein said chemical metal bath contains copper, nickel or alloy thereof.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1993-05-28 | 1993-11-27 | 1994-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-05-28 | 1997-11-27 | 1998-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-05-28 | 2001-11-27 | 2002-05-29 | $7700.00 | Window Closed / Lapsed |