Block polymer-wax blends
Abstract
Abstract A COMPOSITION OF MATTER CAPABLE OF BEING USED AS HEAT SEALABLE. MOISTURE PROOF, FLEXIBLE, DUCTILE, TOUGH, ETC., COATING LAMINATE, ADHESIVE, ETC. WHICH COMPRISES (1) BLOCK POLYMER, FOR EXAMPLE 2-35%; (2) WAX, FOR EXAMPLE 96-15%; AND (3) RESIN, FOR EXAMPLE 2-50%, BY WEIGHT. THESE COMPOSITONS ARE UNIQUE AS COMPARED TO OTHER WAX FORMULATIONS IN THAT THEY ARE DUCTILE AND FLEXIBLE AT LOW VISOSITIES WHICH MAKE THEM ADAPTABLE FOR USE WITH EQUIPMENT CAPABLE OF EMPLOYING ONLY LOW VISCOSITY SOLUTIONS BUT AT THE SAME TIME OBTAINING SUPERIOR RESULTS HERETOFORE OBTAINED ONLY FROM HIGH VISCOSITY COMPOSITIONS. THESE COMPOSITIONS ARE PREFERABLY PREPARED IN A MANNER WHICH MINIMIZES OXIDATION BY FIRST BLENDING THE COMPONENTS AT RELATIVELY LOW TEMPERATURE, FOR EXAMPLE BELOW ABOUT 200*F. SUCH AS AT ABOUT 110*-180*F., AND THEN COMPLETING THE BLENDING AT RELATIVELY HIGHER TEMPERATURES, FOR EXAMPLE ABOVE 200*F., SUCH AS AT ABOUT 250-300*F.
Inventors
- 👤 George Eugene Unmuth
- 👤 Charles Howard Hopkins
Bibliographic Details
Claims Analysis
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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) | 1975-01-03 | 1975-07-05 | 1976-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-03 | 1979-07-05 | 1980-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-03 | 1983-07-05 | 1984-01-04 | $7700.00 | Window Closed / Lapsed |