Patent EP0240376A1 successfully refreshed from Google Patents.
US4133823A
Expired / Lapsed
US
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Reaction products of metal oxides and salts with phosphorus compounds
Assignee: Monsanto Co
•
Filing: 1976-09-17
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Granted: 1979-01-09
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Expires: 1996-09-17
Abstract
Abstract Reaction products are prepared from metal oxides and salts and phosphorus compounds containing trivalent phosphorus. The reaction products are useful as flame retardants and smoke suppressants.
Inventors
- 👤 Samuel F. Joyce, III
- 👤 Albert W. Morgan
- 👤 Norman W. Touchette
- 👤 William Vanderlinde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:39
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/40; C07F9/4003; C07F9/4006
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
36 words
Reaction product of a phosphite/phosphonate of the formula ##STR7## , wherein n has a value from 0 to 4, and a metal compound selected from the group consisting of a metal oxide and a metal salt.
Claim 2
Dependent Claim
36 words
Reaction product of a phosphite/phosphonate of the formula ##STR7## , wherein n has a value from 0 to 4, and a metal compound selected from the group consisting of a metal oxide and a metal salt.
Claim 3
Dependent Claim
11 words
Product of claim 1 wherein n has a value of 1.
Claim 4
Dependent Claim
12 words
Product of claim 1 wherein n has an average value of 2.
Claim 5
Dependent Claim
12 words
Product of claim 1 wherein said metal compound is a metal oxide.
Claim 6
Dependent Claim
12 words
Product of claim 1 wherein said metal compound is a metal salt.
Claim 7
Dependent Claim
9 words
Product of claim 1 wherein said metal is cobalt.
Claim 8
Dependent Claim
59 words
Reaction product of a mixture of (A) a phosphonate of the formula ##STR8## , wherein n has a value from 0 to 4, and (B) a phosphite/phosphonate of the formula ##STR9## , wherein n has a value from 0 to 4, with (C) a metal compound selected from the group consisting of a metal oxide and a metal salt.
Claim 9
Dependent Claim
59 words
Reaction product of a mixture of (A) a phosphonate of the formula ##STR8## , wherein n has a value from 0 to 4, and (B) a phosphite/phosphonate of the formula ##STR9## , wherein n has a value from 0 to 4, with (C) a metal compound selected from the group consisting of a metal oxide and a metal salt.
Claim 10
Dependent Claim
11 words
Product of claim 7 wherein n has a value of 1.
Claim 11
Dependent Claim
12 words
Product of claim 7 wherein n has an average value of 2.
Claim 12
Dependent Claim
16 words
Product of claim 7 wherein said mixture is comprised of about 99 percent of said phosphonate.
Claim 13
Dependent Claim
12 words
Product of claim 7 wherein said metal compound is a metal oxide.
Claim 14
Dependent Claim
12 words
Product of claim 7 wherein said metal compound is a metal salt.
Claim 15
Dependent Claim
9 words
Product of claim 7 wherein said metal is cobalt.
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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) | 1982-01-08 | 1982-07-10 | 1983-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-08 | 1986-07-10 | 1987-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-08 | 1990-07-10 | 1991-01-09 | $7700.00 | Window Closed / Lapsed |