US4581058A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymeric quaternary ammonium compounds and their uses
Assignee: Buckman Laboratories International Inc
•
Filing: 1984-11-28
•
Granted: 1986-04-08
•
Expires: 2004-11-28
Abstract
Abstract Novel polyquaternary ammonium compounds prepared from N,N'-bis(dialkylaminoalkyl)ureas, hydrochloric acid, epichlorohydrin and tertiary amines are useful as microbicides, corrosion inhibitors, debonding agents, flocculants, softeners, anti-static agents, and demulsifiers.
Inventors
- 👤 Joseph G. Fenyes
- 👤 John D. Pera
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:51
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/12; C07D295/125; C07D295/13; A; A01; A01N; A01N47/00; A01N47/08; A01N47/28; B; B01; B01D; B01D17/00; B01D17/02; B01D17/04; B01D17/047; C02; C02F; C02F1/00; C02F1/50; C02F1/52; C02F1/54; C02F5/00; C02F5/08; C02F5/10; C02F5/12; C07C; C07C275/00; C07C275/04; C07C275/06; C07C275/14; C08; C08G; C08G73/00; C08G73/02; C08G73/0206; C08G73/0213; C08G73/0226; C08G73/024; C08G73/0273; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/173
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
155 words
A method of inhibiting the growth and proliferation of microorganisms selected from the group consisting of algae, bacteria, and fungi which comprises contacting said microorganisms with a polymeric quaternary ammonium composition having the structure ##STR9## R' is methyl, ethyl, propyl, hydroxyethyl or hydroxypropyl; characterized in that R' and R" are identical when R' is an ethyl, propyl, hydroxyethyl or hydroxypropyl and when R' is methyl, R" is independently methyl or an alkyl group containing 5 to 22 carbon atoms having 0 to 2 carbon to carbon double bonds, cyclohexyl, benzyl or phenyl; further characterized in that R' and R" may form a pyridyl group; Q is ##STR10## R'" is a lower alkyl group, m is 0 or a number from 1 to 200, n is 2 or 3, and p varies from 2 to 12; said polymeric quaternary ammonium composition being present in an amount sufficient to inhibit the growth and proliferation of said microorganisms.
Claim 2
Independent Claim
155 words
A method of inhibiting the growth and proliferation of microorganisms selected from the group consisting of algae, bacteria, and fungi which comprises contacting said microorganisms with a polymeric quaternary ammonium composition having the structure ##STR9## R' is methyl, ethyl, propyl, hydroxyethyl or hydroxypropyl; characterized in that R' and R" are identical when R' is an ethyl, propyl, hydroxyethyl or hydroxypropyl and when R' is methyl, R" is independently methyl or an alkyl group containing 5 to 22 carbon atoms having 0 to 2 carbon to carbon double bonds, cyclohexyl, benzyl or phenyl; further characterized in that R' and R" may form a pyridyl group; Q is ##STR10## R'" is a lower alkyl group, m is 0 or a number from 1 to 200, n is 2 or 3, and p varies from 2 to 12; said polymeric quaternary ammonium composition being present in an amount sufficient to inhibit the growth and proliferation of said microorganisms.
Claim 3
Dependent Claim
23 words
The method of claim 1 wherein in said polyquaternary, B is ammonium composition A is chlorine, B is ##STR11## and m is 0.
Claim 4
Dependent Claim
16 words
The method of claim 1 wherein in said polyquaternary ammonium composition ##STR12## and m is 0.
Claim 5
Dependent Claim
18 words
The method of claim 1 wherein in said polyquaternary ammonium composition A is ##STR13## and m is 0.
Claim 6
Dependent Claim
18 words
The method of claim 1 wherein in said polyquaternary ammonium composition A is ##STR14## and m is 0.
Claim 7
Dependent Claim
22 words
The method of claim 1 wherein in said polyquaternary ammonium composition A is chlorine ##STR15## and m varies from 1 to 200.
Claim 8
Dependent Claim
23 words
The method of claim 1 wherein in said polyquaternary ammonium composition A is chlorine or ##STR16## and m varies from 1 to 200.
Claim 9
Dependent Claim
22 words
The method of claim 1 wherein in said polyquaternary ammonium composition A is chlorine, ##STR17## and m varies from 1 to 200.
Claim 10
Dependent Claim
22 words
The method of claim 1 wherein in said polyquaternary ammonium composition A is chlorine ##STR18## and m varies from 1 to 200.
Claim 11
Dependent Claim
21 words
The method of claim 1 wherein in said polyquaternary ammonium composition A is ##STR19## and m varies from 1 to 200.
Claim 12
Dependent Claim
21 words
The method of claim 1 wherein in said polyquaternary ammonium composition A is ##STR20## and m varies from 1 to 200.
References Cited (Backward Citations)
US3324176A
Cited
US3864379A
Cited
US3957774A
Cited
US4247476A
Cited
US4390689A
Cited
US4395541A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-04-07 | 1989-10-07 | 1990-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-07 | 1993-10-07 | 1994-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-07 | 1997-10-07 | 1998-04-08 | $7700.00 | Window Closed / Lapsed |