Poly(oxycaproyl)-polyurethane products
Abstract
Abstract THIS INVENTION RELATES TO THE MANUFACTURE OF POLY(OXYCAPROYL)-POLYURETHANE PRODUCTS WHICH EXHIBIT MARKEDLY IMPROVED TENSILE STRENGTH WHILE RETAINING A HIGH LEVEL OF OTHER MECHANICAL PROPERTIES ESPECIALLY COMPRESSION SET. THESE PRODUCTS ARE PREPARED BY REACTING (I) A MIXTURE OF POLYMERIC DIOLS WHICH COMPRISE DEFINED AMOUNTS OF RELATIVELY HIGH MOLECULAR WEIGHT POLY(OXYCAPROYL) DIOL AND RELATIVELY LOW MOLECULAR WEIGHT POLY(OXYCAPROYL) DIOL WITH (II) A DIISOCYANATE COMPOUND, AND (III) A DIFUNCTIONAL CHAIN EXTENDER, AND OPTIONALLY, ADDITIONAL INGREDIENTS SUCH S CATALYST, SURFACTANT, BLOWING AGENT, DYES, ETC. THE NOVEL SOLID AND MICROCELLULAR ELASTOMERIC PRODUCTS HAVE UTILITY IN APPLICATIONS SUCH AS SHOE SOLES AND SOLID INDUSTRIAL TIRES.
Inventors
- 👤 J Koleske
- 👤 G Magnus
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) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |