Patent US4070336A successfully refreshed from Google Patents.
US4070336A
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Hydrogen phosphonates and polymer compositions containing them as flame retardants
Assignee: Monsanto Co
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Filing: 1976-09-03
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Granted: 1978-01-24
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Expires: 1996-09-03
Abstract
Abstract The present invention relates to cyclic phosphorus compounds including cyclic hydrogen phosphonates and processes for the preparation thereof.
Inventors
- 👤 Gail H. Birum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:07
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/6564; C07F9/6571; C07F9/657163; C07F9/657181; C07F9/657109; C07F9/657118; C07F9/657136; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/53; C08K5/5317; C08K5/5333; C08K5/5357
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
74 words
A cyclic phosphorus compound having the formula ##STR20## where Y is selected from the group consisting of ##STR21## and ##STR22## and where X is selected from the group consisting of --S(R.sub.c) where R c is phenyl with 0 to 5 halogens, or phenyl with 0 to 2 nitro groups, or methyl with 0 to 3 chlorine atoms, and ##STR23## where R d is an alkyl radical of 1 to 4 carbon atoms, or phenyl.
Claim 2
Dependent Claim
74 words
A cyclic phosphorus compound having the formula ##STR20## where Y is selected from the group consisting of ##STR21## and ##STR22## and where X is selected from the group consisting of --S(R.sub.c) where R c is phenyl with 0 to 5 halogens, or phenyl with 0 to 2 nitro groups, or methyl with 0 to 3 chlorine atoms, and ##STR23## where R d is an alkyl radical of 1 to 4 carbon atoms, or phenyl.
Claim 3
Dependent Claim
43 words
Cyclic phosphorus compound as in claim 1 having the formula ##STR24## where X is the group ##STR25## where R c is phenyl with 0 to 5 halogens, or phenyl with 0 to 2 nitro groups, or methyl with 0 to 3 chlorine atoms.
Claim 4
Dependent Claim
32 words
Cyclic phosphorus compound as in claim 1 having the formula ##STR26## where X is the group ##STR27## where R d is an alkyl radical of 1 to 4 carbon atoms, or phenyl.
Claim 5
Dependent Claim
3 words
The compound ##STR28##
Claim 6
Dependent Claim
3 words
The compound ##STR28##
Claim 7
Dependent Claim
3 words
The compound ##STR29##
Claim 8
Dependent Claim
3 words
The compound ##STR29##
Claim 9
Dependent Claim
3 words
The compound ##STR30##
Claim 10
Dependent Claim
3 words
The compound ##STR30##
Claim 11
Dependent Claim
61 words
Process for the preparation of cyclic hydrogenphosphonate which comprises admixing at 10° C to 100° C, formic acid with a cyclic phosphorochloridite having the formula ##STR31## where R is an alkylene, or haloalkylene group of a 1,2-glycol having from 2 to 8 carbon atoms, or of a 1,3-glycol having from 3 to 8 carbon atoms, and Z is Cl or Br.
Claim 12
Dependent Claim
61 words
Process for the preparation of cyclic hydrogenphosphonate which comprises admixing at 10° C to 100° C, formic acid with a cyclic phosphorochloridite having the formula ##STR31## where R is an alkylene, or haloalkylene group of a 1,2-glycol having from 2 to 8 carbon atoms, or of a 1,3-glycol having from 3 to 8 carbon atoms, and Z is Cl or Br.
Claim 13
Dependent Claim
21 words
Process for the preparation of the compound ##STR32## which comprises admixing at 10° to 100° C, formic acid with -chloro-5,5-bis(bromomethyl)-1,3,2-dioxaphosphorinane, ##STR33##
Claim 14
Dependent Claim
21 words
Process for the preparation of the compound ##STR32## which comprises admixing at 10° to 100° C, formic acid with -chloro-5,5-bis(bromomethyl)-1,3,2-dioxaphosphorinane, ##STR33##
Claim 15
Dependent Claim
19 words
Process for the preparation of the compound ##STR34## which comprises admixing at 10° to 100° C, formic acid with
Claim 16
Dependent Claim
19 words
Process for the preparation of the compound ##STR34## which comprises admixing at 10° to 100° C, formic acid with
Claim 17
Dependent Claim
2 words
. 9-dichloro-2,4,8,10-textraoxa-3,9-diphosphaspiro[5.5]undecane.
Claim 18
Dependent Claim
2 words
. 9-dichloro-2,4,8,10-textraoxa-3,9-diphosphaspiro[5.5]undecane.
Claim 19
Dependent Claim
40 words
Process for the preparation of cyclic phosphorus compounds which comprises admixing at 10° to 100° C, formic acid with a phosphorochloridite selected from the group consisting of 2-chloro-5,5-dimethyl-1,3,2-dioxaphosphorinane, and 2-chloro-5-ethyl-5-methyl-1,3,2-dioxaphosphorinane, and 2-bromo-5,5-bis-(chloromethyl)-1,3,2-dioxaphosphorinane, and 2-chloro-4-methyl-1,3,2-dioxaphosphorinane, and 2-chloro-5-phenyl-1,3,2-dioxaphosphorinane, and 2-chloro-5-(4-fluoro-3-bromophenyl)-1,3,2-dioxaphosphorinane, 2-chloro-5,5-bis(bromomethyl)-1,3,2-dioxaphosphorinane, 3,9-dichloro-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane.
Claim 20
Dependent Claim
40 words
Process for the preparation of cyclic phosphorus compounds which comprises admixing at 10° to 100° C, formic acid with a phosphorochloridite selected from the group consisting of 2-chloro-5,5-dimethyl-1,3,2-dioxaphosphorinane, and 2-chloro-5-ethyl-5-methyl-1,3,2-dioxaphosphorinane, and 2-bromo-5,5-bis-(chloromethyl)-1,3,2-dioxaphosphorinane, and 2-chloro-4-methyl-1,3,2-dioxaphosphorinane, and 2-chloro-5-phenyl-1,3,2-dioxaphosphorinane, and 2-chloro-5-(4-fluoro-3-bromophenyl)-1,3,2-dioxaphosphorinane, 2-chloro-5,5-bis(bromomethyl)-1,3,2-dioxaphosphorinane, 3,9-dichloro-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane.
Claim 21
Dependent Claim
102 words
Process for the preparation of a cyclic phosphorus compound which comprises admixing at 10° to 100° C, formic acid with a cyclic phosphorochloridite having the formula ##STR35## where R is an alkylene, or haloalkylene group of a 1,2-glycol having from 2 to 8 carbon atoms, or of a 1,3-glycol having from 3 to 8 carbon atoms, and Z is Cl or Br, and thereafter treating the reaction mixture with a sulfenyl chloride, (R c ) SCl, where R c is phenyl with 0 to 5 halogen atoms, or phenyl with 0 to 2 groups, or methyl with 0 to 3 chlorine atoms.
Claim 22
Dependent Claim
102 words
Process for the preparation of a cyclic phosphorus compound which comprises admixing at 10° to 100° C, formic acid with a cyclic phosphorochloridite having the formula ##STR35## where R is an alkylene, or haloalkylene group of a 1,2-glycol having from 2 to 8 carbon atoms, or of a 1,3-glycol having from 3 to 8 carbon atoms, and Z is Cl or Br, and thereafter treating the reaction mixture with a sulfenyl chloride, (R c ) SCl, where R c is phenyl with 0 to 5 halogen atoms, or phenyl with 0 to 2 groups, or methyl with 0 to 3 chlorine atoms.
Claim 23
Dependent Claim
87 words
Process for the preparation of a cyclic phosphorus compound which comprises admixing at 10° to 100° C, formic acid with a cyclic phosphorochloridite having the formula ##STR36## where R is an alkylene, or haloalkylene group of a 1,2-glycol having from 2 to 8 carbon atoms, or of a 1,3-glycol having from 3 to 8 carbon atoms, and Z is Cl or Br, and thereafter treating the reaction mixture with a ketone, ##STR37## where R d is an alkyl radical of 1 to 4 carbon atoms, or phenyl.
Claim 24
Dependent Claim
87 words
Process for the preparation of a cyclic phosphorus compound which comprises admixing at 10° to 100° C, formic acid with a cyclic phosphorochloridite having the formula ##STR36## where R is an alkylene, or haloalkylene group of a 1,2-glycol having from 2 to 8 carbon atoms, or of a 1,3-glycol having from 3 to 8 carbon atoms, and Z is Cl or Br, and thereafter treating the reaction mixture with a ketone, ##STR37## where R d is an alkyl radical of 1 to 4 carbon atoms, or phenyl.
Claim 25
Dependent Claim
84 words
Process for the preparation of a cyclic phosphorus compound which comprises admixing at 10° to 100° C, formic acid with a mixture of a cyclic phosphorochloridite having the formula ##STR38## where R is an alkylene, or haloalkylene group of a 1,2-glycol having from 2 to 8 carbon atoms, or of a 1,3-glycol having from 3 to 8 carbon atoms, and Z is Cl or Br, and a ketone, ##STR39## where R d is an alkyl radical of 1 to 4 carbon atoms or phenyl
Claim 26
Dependent Claim
84 words
Process for the preparation of a cyclic phosphorus compound which comprises admixing at 10° to 100° C, formic acid with a mixture of a cyclic phosphorochloridite having the formula ##STR38## where R is an alkylene, or haloalkylene group of a 1,2-glycol having from 2 to 8 carbon atoms, or of a 1,3-glycol having from 3 to 8 carbon atoms, and Z is Cl or Br, and a ketone, ##STR39## where R d is an alkyl radical of 1 to 4 carbon atoms or phenyl
Claim 27
Dependent Claim
17 words
The combination of an organic polymer together with a cyclic phosphorus compound as defined in claim 1.
Claim 28
Dependent Claim
17 words
The combination of an organic polymer together with a cyclic phosphorus compound as defined in claim 2.
Claim 29
Dependent Claim
17 words
The combination of an organic polymer together with a cyclic phosphorus compound as defined in claim 3.
Claim 30
Dependent Claim
17 words
The combination of an organic polymer together with a cyclic phosphorus compound as defined in claim 4.
Claim 31
Dependent Claim
17 words
The combination of an organic polymer together with a cyclic phosphorus compound as defined in claim 5.
Claim 32
Dependent Claim
17 words
The combination of an organic polymer together with a cyclic phosphorus compound as defined in claim 6.
Claim 33
Dependent Claim
16 words
The combination of polyethylene terephthalate together with a cyclic phosphorus compound as defined in claim 1.
Claim 34
Dependent Claim
16 words
The combination of polyamide resin together with a cyclic phosphorus compound as defined in claim 1.
Claim 35
Dependent Claim
16 words
The combination of polyethylene terephthalate together with a cyclic phosphorus compound as defined in claim 5.
Claim 36
Dependent Claim
16 words
The combination of polyethylene terephthalate together with a cyclic phosphorus compound as defined in claim 8.
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) | 1981-01-23 | 1981-07-25 | 1982-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-23 | 1985-07-25 | 1986-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-23 | 1989-07-25 | 1990-01-24 | $7700.00 | Window Closed / Lapsed |