US3716580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Functional tertiary phosphine oxides
Assignee: Monsanto Co
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Filing: 1970-12-03
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Granted: 1973-02-13
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Expires: 1990-12-03
Abstract
Abstract Tertiary phosphine oxides of the formula IN WHICH X is selected from the group consisting of hydroxyl, chlorine, bromine or an RO, RS or RC(O)O- group, wherein R is a hydrocarbon group, Y signifies hydroxyl, chlorine or bromine if n is O, or Y is defined as X if n is 1, and n is 0 or 1, and a novel process for preparing such phosphine oxides. Tertiary phosphine oxides, exemplified by tris-(2-hydroxyethyl)-phosphine oxide, bis-(2-chloroethyl)-chloromethylphosphine oxide and bis(2-decanoxyethyl)-chloromethylphosphine oxide are useful as flameproofing agents and plasticizers.
Inventors
- 👤 L Maier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:42
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/244; D06M13/282; D06M13/285; A; A23; A23B; A23B7/00; A23B7/04; A23B7/05; A23B7/14; A23B7/153; A23B7/154; C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/50; C07F9/53; C07F9/5304; C08; C08F; C08F30/00; C08F30/02; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/53; C08K5/5397; C10; C10M; C10M3/00; C10M2223/00; C10M2223/06; C10M2223/061; C10N; C10N2040/00; C10N2040/08
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
93 words
Tertiary phosphine oxide having the general formula (XCH2-CH2)2P(O)CH2(CH2)nY wherein n has a value of0 or 1; when n is 0, X is hydroxyl, chlorine, bromine, RO-, RS-, or RC(O)O- wherein R is a hydrocarbon group derived from a monohydric alcohol, phenol of mercaptan, and Y is hydroxyl, chlorine or bromine, provided that when X is hydroxyl, Y is not hydroxyl, chlorine or bromine and when Y is hydroxyl, X is not hydroxyl, chlorine, bromine, RO-, RS-, or RC(O)O-; and when n is 1, both X and Y are chlorine, bromine, RO-, RS-, RC(O)O-.
Claim 2
Dependent Claim
93 words
Tertiary phosphine oxide having the general formula (XCH2-CH2)2P(O)CH2(CH2)nY wherein n has a value of0 or 1; when n is 0, X is hydroxyl, chlorine, bromine, RO-, RS-, or RC(O)O- wherein R is a hydrocarbon group derived from a monohydric alcohol, phenol of mercaptan, and Y is hydroxyl, chlorine or bromine, provided that when X is hydroxyl, Y is not hydroxyl, chlorine or bromine and when Y is hydroxyl, X is not hydroxyl, chlorine, bromine, RO-, RS-, or RC(O)O-; and when n is 1, both X and Y are chlorine, bromine, RO-, RS-, RC(O)O-.
Claim 3
Dependent Claim
10 words
Tertiary phosphine oxide of claim 1 which is bis-(2-chloroethyl)-chloromethylphosphine oxide.
Claim 4
Dependent Claim
10 words
Tertiary phosphine oxide of claim 1 which is tris-(2-chloroethyl)-phosphine oxide.
Claim 5
Dependent Claim
31 words
Tertiary phosphine oxide of claim 1, wherein X and Y signify RO or RS groups wherein R is defined as above and Y is a chlorine atom if N is zero
Claim 6
Dependent Claim
10 words
Tertiary phosphine oxide of claim 1 which is bis-(2-ethoxyethyl)-chlorometylphosphine oxide.
Claim 7
Dependent Claim
10 words
Tertiary phosphine oxide of claim 1 which is bis-(2-decanoxyethyl)-chloromethylphsphine oxide.
Claim 8
Dependent Claim
10 words
Tertiary phosphine oxide of claim 1 which is bis-(2-p-chlorophenylthioethyl)-chloromethylphosphine oxide.
Claim 9
Dependent Claim
10 words
Tertiary phosphine oxide of claim 1 which is bis-(2-bromoethyl)-bromomethylphosphine oxide.
Claim 10
Dependent Claim
10 words
Tertiary phosphine oxide of claim 1 which is tris-(2-ethoxyethyl)-phosphine oxide.
Claim 11
Dependent Claim
10 words
Tertiary phosphine oxide of claim 1 which is bis-(2-acetoxyethyl)-acetoxymethylphosphine oxide.
Claim 12
Dependent Claim
10 words
Tertiary phosphine oxide of claim 1 which is tris-(2-acetoxyethyl)-phosphine oxide.
Claim 13
Dependent Claim
31 words
Tertiary phosphine oxide of claim 1, wherein X and Y signify RO or RS groups wherein P is defined as above and Y is a bromine atom if n is zero.
References Cited (Backward Citations)
US3404187A
Cited
US3477953A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-13 | 1976-08-14 | 1977-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-13 | 1980-08-14 | 1981-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-13 | 1984-08-14 | 1985-02-13 | $7700.00 | Window Closed / Lapsed |