Patent US3679778A successfully refreshed from Google Patents.
US3679778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amide and carbamate diphosphonates and process for their manufacture
Assignee: Novartis AG
•
Filing: 1969-12-16
•
Granted: 1972-07-25
•
Expires: 1989-12-16
Abstract
Abstract Phosphorus compounds are provided which correspond to the formula WHEREIN EACH R is an alkyl, alkenyl or halogenalkyl radical, X and X'' each is a methyl radical or a hydrogen atom, Y and Y'' each is an alkyl radical or a hydrogen atom and A is an alkyl, halogenalkyl, hydroxyalkyl or a phenyl or benzyl group which both may be halogen substituted. The phosphorus compounds are manufactured from the corresponding phosphorus carboxylic acid amides and carbamates and formaldehyde. These compounds optionally together with a curable aminoplast precondensate are useful for flameproofing and creaseproofing of cellulosecontaining fiber materials.
Inventors
- 👤 Hermann Nachbur
- 👤 Arthur Maeder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:07
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/244; D06M13/282; D06M13/288; C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/40; C07F9/4003; C07F9/4006
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
58 words
A phosphorus compound according to claim 1 in which A is an alkyl radical with at most 22 carbon atoms, a chloro or bromoalkyl radical with at most four carbon atoms, an alkenyl radical with two to 22 carbon atoms, a phenyl, a chloro or bromo substituted phenyl, a benzyl or a chloro or bromo substituted benzyl radical.
Claim 2
Dependent Claim
10 words
A phosphorus compound according to claim 1 of the formula
Claim 3
Dependent Claim
10 words
A phosphorus compound according to claim 1 of the formula
Claim 4
Dependent Claim
66 words
A phosphorus compound according to claim 4, in which R1 is a methyl or ethyl radical, Y is a methyl radical or a hydrogen atom and A is an alkyl radical with at most 18 carbon atoms, a chloro-or bromoalkyl radical with at most three carbon atoms, a hydroxyalkyl radical with at most three carbon atoms or an alkenyl radical with two to four carbon atoms.
Claim 5
Dependent Claim
20 words
A phosphorus compound according to claim 5, in which A is an alkyl radical with at most four carbon atoms.
Claim 6
Dependent Claim
10 words
The phosphorus compound according to claim 1 of the formula
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
76 words
A process for the manufacture of a phosphorus compound as claimed in claim 1, which comprises reacting a. a condensation product of a''. 2 mols of at least one compound of the formula and b''. 1 mol of a carbamate of the formula A-O-CO-NH2 in which the H2N-group of component (a'') is mono-methylolated or the H2N group of component (b'') is di-methylolated, with b. 2 mols of formaldehyde or a formaldehyde-releasing agent, at 60* to 150*C.
Claim 10
Dependent Claim
26 words
A process according to claim 10 wherein the reaction product is etherified with 1 to 2 mols of an alkanol with at most four carbon atoms.
References Cited (Backward Citations)
US3351617A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-25 | 1976-01-24 | 1976-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-25 | 1980-01-24 | 1980-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-25 | 1984-01-24 | 1984-07-25 | $7700.00 | Window Closed / Lapsed |