Pressure sensitive adhesive sheet
Abstract
Abstract TAPE CONSTRUCTIONS ARE DISCLOSED IN WHICH IN CONTRAST TO CONVENTIONAL PRACTICE, A PRIMER FOR THE ADHESIVE IS DISPOSED ON THE OPPOSITE SIDE OF THE TAPE BACKING FROM THE ADHESIVE, THE ADHESIVE BEING ANCHORED TO THE PRIMER THROUGH OPENING PROVIDED IN THE BACKING SUBSTRATE. THUS, THE PRIMER NEED ONLY ADHERE TENACIOUSLY TO THE ADHESIVE AND NEED NOT ADHERE TO THE BACKING SUBSTRATE, THUS ELIMINATING COMPLEX PRIMER FORMULATION PROBLEMS NORMALLY ENCOUNTERED. SINCE THE PRIMER IS INTERPOSED ON THE OUTER SURFACE OF THE TAPE BACKING, IT MAY PROVIDE A BASE FOR OTHER COATINGS AND, WHEN UTILIZING FIBROUS SUBSTRATES, SIGNIFICANT ADVANTAGES IN FLEXIBILITY AND CONFORMABILITY OF THE RESULTING TAPE ARE OBTAINED BY VITURE OF THE ELIMINATION OF THE DIRECT BOND CONVENTIONALLY PROVIDED BETWEEN THESE COATINGS AND THE SUBSTRATE. D R A W I N G
Inventors
- 👤 Charles D Dipner
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |