US3985540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal complexes of hydroxyquinoline and polymeric porous granules
Assignee: ISP Investments LLC
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Filing: 1970-04-02
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Granted: 1976-10-12
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Expires: 1990-04-02
Abstract
Abstract Metal complexes of 8-hydroxyquinoline and polymeric water-insoluble but water-swellable cross-linked N-vinyllactam or N-alkyl-N-vinylamide polymers in the form of porous beads or granules and a process for preparing same. Such complexes are particularly suited for use as algicides, fungicides, slimicides, and bacteriocides in the treatment of water such as in gravity filtration systems, canisters or packed columns having the advantage of rapid throughput. The complexes may be prepared by adsorbing the hydroxyquinoline onto the cross-linked N-vinyllactam or N-alkyl-N-vinylamide in the form of porous beads or porous granules and subsequently forming the metallic complex in solution.
Inventors
- 👤 Marvin M. Fein
- 👤 Nathan D. Field
- 👤 Earl P. Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:38
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/50; C08; C08F; C08F8/00; C08F8/30; C08F8/42; C08F2800/00; C08F2800/20; C08F2810/00; C08F2810/20; Y; Y10; Y10S; Y10S521/00; Y10S521/921; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
61 words
A complex formed by reacting 8-hydroxyquinoline and a water-insoluble but water swellable cross-linked polymer selected from the group consisting of N-vinyllactam or N-alkyl-N-vinylamide monomers, said polymer being in the form of porous beads or granules, to form a complex therebetween and thereafter reacting said complex with a metallic salt to form a complex between the metallic salt and said polymer complex.
Claim 2
Dependent Claim
61 words
A complex formed by reacting 8-hydroxyquinoline and a water-insoluble but water swellable cross-linked polymer selected from the group consisting of N-vinyllactam or N-alkyl-N-vinylamide monomers, said polymer being in the form of porous beads or granules, to form a complex therebetween and thereafter reacting said complex with a metallic salt to form a complex between the metallic salt and said polymer complex.
Claim 3
Dependent Claim
69 words
The complex of claim 1 wherein said N-vinyl lactam monomer is selected from those having the formula ##STR4## wherein R 1 and R 2 are selected from the group consisting of hydrogen, alkyl and aryl; Y is selected from the group consisting of ##STR5## and n and n 1 are integers from 0 to 5, with the proviso that only one of n and n 1 may be zero.
Claim 4
Dependent Claim
11 words
The complex of claim 2 wherein said N-vinyllactam monomer is N-vinylpyrrolidone.
Claim 5
Dependent Claim
32 words
The complex of claim 1 wherein said N-alkyl-N-vinylamide monomer is selected from those having the formula: ##STR6## wherein R 3 and R 4 are hydrocarbon radicals of 1 to 4 carbon atoms.
Claim 6
Dependent Claim
13 words
The complex of claim 1 wherein said metal salt is a copper salt.
Claim 7
Dependent Claim
27 words
The complex of claim 1 wherein said metal salt is a salt of a metal selected from the group consisting of copper, zinc, manganese, iron, and aluminum.
Claim 8
Independent Claim
88 words
A method of producing a complex of a metal salt, 8-hydroxyquinoline and polymeric porous beads or porous granules of a water-insoluble but water swellable cross-linked N-vinyllactam or N-alkyl-N-vinylamide which comprises reacting a water-insoluble but water swellable cross-linked polymer selected from the group consisting of N-vinyllactam or N-alkyl-N-vinylamide monomers, said polymer being in the form of porous beads or porous granules with 8-hydroxyquinoline to form a complex therebetween and thereafter reacting said complex with a metallic salt to form a complex between the metallic salt and said polymer complex.
Claim 9
Independent Claim
88 words
A method of producing a complex of a metal salt, 8-hydroxyquinoline and polymeric porous beads or porous granules of a water-insoluble but water swellable cross-linked N-vinyllactam or N-alkyl-N-vinylamide which comprises reacting a water-insoluble but water swellable cross-linked polymer selected from the group consisting of N-vinyllactam or N-alkyl-N-vinylamide monomers, said polymer being in the form of porous beads or porous granules with 8-hydroxyquinoline to form a complex therebetween and thereafter reacting said complex with a metallic salt to form a complex between the metallic salt and said polymer complex.
Claim 10
Dependent Claim
18 words
The process of claim 7 wherein said polymer is in a wet form prior to contacting with 8-hydroxyquinoline.
Claim 11
Dependent Claim
19 words
The process of claim 7 wherein the polymer is in a dry form prior to contacting same with 8-hydroxyquinoline.
Claim 12
Dependent Claim
30 words
A complex according to claim 1 comprising N-vinyl-2-pyrrolidone, 8-hydroxyquinoline and a metal salt selected from the group consisting of copper sulfate, zinc sulfate, manganese chloride, iron chloride and aluminum sulfate.
Claim 13
Dependent Claim
30 words
A complex according to claim 1 comprising N-vinylacetamide, 8-hydroxyquinoline and a metal salt selected from the group consisting of copper sulfate, zinc sulfate, manganese chloride, iron chloride and aluminum sulfate.
Claim 14
Dependent Claim
22 words
A composition having algicidal, fungicidal and bactericidal activity comprising as active ingredient an effective amount of a complex according to claim 1.
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) | 1979-10-12 | 1980-04-12 | 1980-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-12 | 1984-04-12 | 1984-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-12 | 1988-04-12 | 1988-10-12 | $7700.00 | Window Closed / Lapsed |