Flame retardant polypropylene and polyurethane
Abstract
Abstract The addition of a substituted 2-butene having the general formula EACH X independently, forming either the cis or trans isomer, is F, Cl, Br, I or H where not more than one X is H, each M independently is O or S, each Z independently is Cl or Br, EACH A independently is an inert substituent, such as F, I, methyl, phenyl, hydroxy, methoxy, nitro, carboxy, acetoxy, cyano, amino or sulfo, N AND M ARE INTEGERS OF 1 TO 5 PROVIDED THAT WHEN N M 1 EACH Z and X is Br and M O and provided that when one X is H then n and m are integers of 3 to 5, and i and j are integers of 0 to 2 where i < OR = n-1 and j < OR = m-1 TO A RESIN OF POLYPROPYLENE OR POLYURETHANE MAKES THE RESULTANT RESIN FIRE RETARDANT OR, IN GREATER CONCENTRATIONS, SELFEXTINGUISHING ACCORDING TO Underwriters test class 2.
Inventors
- 👤 William P Paige
- 👤 Floyd B Nagle
Bibliographic Details
Claims Analysis
Total Claims: 13References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-30 | 1975-11-29 | 1976-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-30 | 1979-11-29 | 1980-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-30 | 1983-11-29 | 1984-05-30 | $7700.00 | Window Closed / Lapsed |