US4315082A
Expired / Lapsed
US
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Phosphorus compounds
Assignee: FMC Corp
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Filing: 1979-07-26
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Granted: 1982-02-09
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Expires: 1999-07-26
Abstract
Abstract Compositions comprising organic phosphorus compounds having a peroxygen group which is either a hydroperoxyalkyl (H--OO--C--) group or a peroxyether (--C--OO--C--) group. There is at least one such group per 500 phosphorus atoms in the composition. These peroxygen compounds may be made by passing oxygen through a liquid comprising a phosphorus compound which has an aliphatic carbon, having an abstractable hydrogen, directly attached to a carbon of an aryl ring; for example, an isopropylphenyl phosphate. The peroxygen compounds may be added to compositions comprising peroxide-reactive organic polymers to increase flame resistance.
Inventors
- 👤 Harry H. Beacham
- 👤 Robert D. Norris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:25
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/12; C07F9/547; C07F9/6564; C07F9/6571; C07F9/6574; C08F; C08F299/00; C08F299/02; C08F299/04; C08F299/0442; C08F299/045; Y; Y10; Y10S; Y10S521/00; Y10S521/907
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
48 words
A mixture of a peroxide-reactive polymer and a peroxide composition, said peroxide composition comprising an organic phosphorus compound having a hydroperoxide group attached directly to a carbon atom of said organic phosphorus compound, there being at least one such hydroperoxide group per 500 phosphorus atoms in said composition.
Claim 2
Dependent Claim
48 words
A mixture of a peroxide-reactive polymer and a peroxide composition, said peroxide composition comprising an organic phosphorus compound having a hydroperoxide group attached directly to a carbon atom of said organic phosphorus compound, there being at least one such hydroperoxide group per 500 phosphorus atoms in said composition.
Claim 3
Dependent Claim
10 words
A mixture as in claim 1 containing a bromine compound.
Claim 4
Dependent Claim
90 words
A mixture of a flammable polymeric plastic, a bromine compound and a peroxy-containing composition, said bromine compound acting synergistically with peroxide to improve the flame resistance of said plastic, said peroxide composition comprising an organic phosphorus compound having a peroxygen group, said peroxygen group being a hydroperoxide group attached directly to a carbon atom of said organic phosphorus compound or being a peroxy-ether group attached directly to two carbon atoms of said organic phosphorus compound, there being at least one such peroxygen group per 500 phosphorus atoms in said composition.
Claim 5
Dependent Claim
90 words
A mixture of a flammable polymeric plastic, a bromine compound and a peroxy-containing composition, said bromine compound acting synergistically with peroxide to improve the flame resistance of said plastic, said peroxide composition comprising an organic phosphorus compound having a peroxygen group, said peroxygen group being a hydroperoxide group attached directly to a carbon atom of said organic phosphorus compound or being a peroxy-ether group attached directly to two carbon atoms of said organic phosphorus compound, there being at least one such peroxygen group per 500 phosphorus atoms in said composition.
Claim 6
Dependent Claim
50 words
Process which comprises mixing a peroxide-reactive moldable polymer with a peroxide composition, said peroxide composition comprising an organic phosphorus compound having a hydroperoxide group attached directly to a carbon atom of said organic phosphorus compound, there being at least one such hydroperoxide group per 500 phosphorus atoms in said composition.
Claim 7
Dependent Claim
50 words
Process which comprises mixing a peroxide-reactive moldable polymer with a peroxide composition, said peroxide composition comprising an organic phosphorus compound having a hydroperoxide group attached directly to a carbon atom of said organic phosphorus compound, there being at least one such hydroperoxide group per 500 phosphorus atoms in said composition.
Claim 8
Dependent Claim
16 words
Process as in claim 4 in which said moldable polymer comprises a peroxide-crosslinkable elastomeric diolefin polymer.
Claim 9
Dependent Claim
12 words
Process as in claim 4 in which said moldable polymer comprises polystyrene.
Claim 10
Dependent Claim
18 words
Process as in claim 4 in which said moldable polymer comprises styrene and an unsaturated polyester copolymerizable therewith.
Claim 11
Dependent Claim
13 words
Process as in claim 4 in which said moldable polymer comprises a polyolefin.
Claim 12
Dependent Claim
12 words
Process as in claim 8 in which said moldable polymer comprises polyethylene.
Claim 13
Dependent Claim
15 words
A mixture as in claim 1 in which said phosphorus compound has a peroxyisopropylphenyl group.
Claim 14
Dependent Claim
15 words
A composition as in claim 10 in which said phosphorus compound is a peroxyisopropylphenyl phosphate.
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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) | 1985-02-08 | 1985-08-10 | 1986-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-02-08 | 1989-08-10 | 1990-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-02-08 | 1993-08-10 | 1994-02-09 | $7700.00 | Window Closed / Lapsed |