Patent US4313761A successfully refreshed from Google Patents.
US4313761A
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Reaction products of metal oxides and salts with phosphorus compounds
Assignee: Monsanto Co
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Filing: 1980-10-24
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Granted: 1982-02-02
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Expires: 2000-10-24
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
2026-11-06 15:56
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/53; C08K5/5317; C08K5/5333; C08K5/5337; C08K5/0008; C08K5/0066
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
42 words
A composition comprising a natural polymer and a reaction product of a phosphite/phosphonate of the formula ##STR7## wherein n has a value from 0 to 4 and a compound selected from the group consisting of a metal oxide and a metal salt.
Claim 2
Dependent Claim
42 words
A composition comprising a natural polymer and a reaction product of a phosphite/phosphonate of the formula ##STR7## wherein n has a value from 0 to 4 and a compound selected from the group consisting of a metal oxide and a metal salt.
Claim 3
Dependent Claim
12 words
A composition of claim 1 wherein the natural polymer is ethyl cellulose.
Claim 4
Dependent Claim
14 words
A composition of claim 1 wherein the natural polymer is selected from cellulose esters.
Claim 5
Dependent Claim
12 words
A composition of claim 1 wherein the natural polymer is cellulose acetate.
Claim 6
Dependent Claim
12 words
A composition of claim 1 wherein the natural polymer is cellulose nitrate.
Claim 7
Dependent Claim
12 words
A composition of claim 1 wherein the natural polymer is natural rubber.
Claim 8
Dependent Claim
11 words
A composition of claim 1 wherein the natural polymer is cotton.
Claim 9
Dependent Claim
14 words
A composition of claim 1 wherein the natural polymer is a constituent of wood.
Claim 10
Dependent Claim
14 words
A composition of claim 1 wherein the natural polymer is a constituent of cork.
Claim 11
Dependent Claim
21 words
A composition of claim 1 wherein said metal is selected from the group consisting of cobalt, nickel, tin, antimony and copper.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-02-01 | 1985-08-03 | 1986-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-02-01 | 1989-08-03 | 1990-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-02-01 | 1993-08-03 | 1994-02-02 | $7700.00 | Window Closed / Lapsed |