Patent US3627767A successfully refreshed from Google Patents.
US3627767A
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Certain alkylene urea- or thiourea-containing phosphorus compounds
Assignee: BASF Schweiz AG
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Filing: 1969-12-30
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Granted: 1971-12-14
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Expires: 1989-12-30
Abstract
Abstract adical with two to three carbon atoms substituted by one to three methyl, methoxy or hydroxyl groups, Z is an oxygen or sulfur atom and Y is an alkyl radical with at most four carbon atoms or a hydrogen atom.
Inventors
- 👤 Hermann Nachbur
- 👤 Arthur Maeder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:24
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/244; D06M13/282; D06M13/288; C; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/645; C07F9/6503; C07F9/6506; C07F9/6509; C07F9/6512
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
26 words
A phosphorus compound according to claim 1 of the formula in which R'', R1'', X, Y, A and Z have the significance indicated in claim 1.
Claim 2
Dependent Claim
25 words
A phosphorus compound according to claim 1 of the formula in which R1, X, Y, A and Z have the significance indicated in claim 1.
Claim 3
Dependent Claim
40 words
A phosphorus compound according to claim 1 of the formula in which R1, X, Y and Z have the significance indicated in claim 1 and E1 and E2 each is a methyl, methoxy or hydroxyl radical or a hydrogen atom.
Claim 4
Dependent Claim
40 words
A phosphorus compound according to claim 1 of the formula in which R3 is a methyl or ethyl radical and Y1 is a methyl radical or a hydrogen atom and E1 and E2 have the significance given in claim 3.
Claim 5
Dependent Claim
54 words
A phosphorus compound according to claim 1 of the formula in which R1, X, Y and Z have the significance indicated in claim 1, E3 is a hydrogen atom or a methoxy group, E4 is a hydrogen atom or a methyl group and E5 is a hydrogen atom or a methyl or hydroxyl group.
Claim 6
Dependent Claim
27 words
A phosphorus compound according to claim 1 of the formula in which R3, Y1, E3, E4 and E5 have the significance indicated in claims 5 and 6.
Claim 7
Dependent Claim
10 words
The phosphorus compound according to claim 1 of the formula
Claim 8
Dependent Claim
10 words
The phosphorus compound according to claim 1 of the formula
Claim 9
Dependent Claim
94 words
Process for the manufacture of phosphorus compounds of the composition indicated in claim 1, which comprises: a. reacting 1 mol of a condensation product obtained by reacting 2 mols of at least one compound of formula with 1 mol of a compound of formula b. reacting said condensation product with 2 mols of formaldehyde or of a formaldehyde-releasing agent at elevated temperature to form a monomethylolated product; and c. when Y is alkyl, reacting said monomethylolated product from step (b) with 1 to 2 mols of an alkanol with at most four carbon atoms.
References Cited (Backward Citations)
US2951008A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-13 | 1975-06-14 | 1975-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-13 | 1979-06-14 | 1979-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-13 | 1983-06-14 | 1983-12-14 | $7700.00 | Window Closed / Lapsed |