Polymer compositions
Abstract
Abstract MOLDING COMPOSITIONS COMPRISING (A) A HARD, RESINOUS TERPOLYMER COMPRISING (1) FROM ABOUT 67-72 PARTS OF METHYL METHACRYLATE, (2) 18-22 PARTS OF STYRENE AND (3) 8-12 PARTS OF A MONOMER HAVING THE FORMULA CH2=C(-CH3)-R WHEREIN R IS CN, CONH2 OR CONHR'', OR A MONOMER HAVING THE FORMULA CH2=CH-CO-NH-R'' WHEREIN R'' IS AN ALKYL GROUP OF 3-8 CARBON ATOMS ATTACHED TO THE NITROGEN ATOM VIA A SECONDARY OR TERTIARY CARBON ATOM, AND (B) POLYBUTADIENE GRAFTED WITH (A) FROM ABOUT 67-80 PARTS OF METHYL METHACRYLATE, (B) 17-21 PARTS OF STYRENE AND (C) 1-13 PARTS OF ACRYLOMITRILE OR (3), ABOVE, THE RATIO OF POLYBUTADIENE TO MONOMER IN (B) RANGING FROM ABOUT 2:1 TO ABOUT 3:1, RESPECTIVELY, THE AMOUNT OF (B) IN SAID COMPOSITION RANGING FROM ABOUT 5% TO ABOUT 30% EXPRESSED AS POLYBUTADIENE EXCLUSIVE OF GRAFTED MONOMERS AND THE AMOUNT OF (A) BEING SUCH AS TO TOTAL 100% WITH THE CONTENT OF GRAFTED POLYBUTADIENE, ARE DISCLOSED.
Inventors
- 👤 Joseph Michael Schmitt
- 👤 Charles William Deeley
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) | 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 |