Method of metallizing a polysulfone body
Abstract
Abstract A PLASTIC BODY IS METALLIZED BY TREATING IT WITH A SOLVENT FOR THE SPECIFIC PLASTIC MATERIAL, FOLLOWED BY TREATMENT IN A SECOND SOLVENT WHICH IS MISCIBLE WITH THE FIRST SOLVENT BUT IS A NONSOLVENT FOR THE SPECIFIC MATERIAL. THE SOLVENT TREATED MATERIAL IS SEQUENTIALLY TREATED IN AN ACID CONDITIONER, AN ALKALINE CLEANING SOLUTION, AND NEUTRALIZED IN A DILUTE HYDROCHLORIC ACID SOLUTION PRIOR TO METALIZATION. EACH STEP MAY BE PRECEDED BY A RINSING STEP. THE METHOD OF THE INVENTION PROVIDES FIRMLY BONDED METAL FILMS TO POLYSULFONE SUBSTRATES. THE BONDED MATERIAL HAS PEEL STRENGTHS OF ABOUT 9 POUNDS PER INCH. THE METHOD OF THE INVENTION AS DESCRIBED HEREIN IS APPLICABLE TO THE MANUFACTURE OF ADDITIVE PRINTED CIRCUITS.
Inventors
- 👤 Kenneth C Davis
- 👤 Glenn V Elmore
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |