US4010259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disinfectants containing iodine complexed to a hydrophilic organic carrier
Assignee: Individual
•
Filing: 1975-07-17
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Granted: 1977-03-01
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Expires: 1995-07-17
Abstract
Abstract The present invention relates to a disinfectant of the so-called iodophor-type, i.e. wherein iodine is complexed to a carrier. In accordance with the invention iodine is complexed to a carrier forming a three-dimensional lattice, kept together by covalent bonds, and being insoluble in water, but capable of swelling in water to form a gel. The new iodophor according to the invention can be used for technical, cosmetical and medical disinfection.
Inventors
- 👤 J. A. Olof Johansson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:46
CPC Classifications
A; A01; A01N; A01N59/00; A01N59/12
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
94 words
A disinfectant containing up to 20% iodine in complexed form, wherein iodine is complexed to a hydrophilic organic carrier, which is a cross-linked polymerisation product of a poly-hydroxylic organic material and a bi-functional cross-linking agent, which forms a three dimensional lattice, kept together by covalent bonds, and which is insoluble in water, but capable of swelling in water to form a gel, the swelling capacity of the carrier being such that 1 g of the dry carrier forms a gel having a volume of from 2 to 100 ml when completely swelled in water.
Claim 2
Dependent Claim
94 words
A disinfectant containing up to 20% iodine in complexed form, wherein iodine is complexed to a hydrophilic organic carrier, which is a cross-linked polymerisation product of a poly-hydroxylic organic material and a bi-functional cross-linking agent, which forms a three dimensional lattice, kept together by covalent bonds, and which is insoluble in water, but capable of swelling in water to form a gel, the swelling capacity of the carrier being such that 1 g of the dry carrier forms a gel having a volume of from 2 to 100 ml when completely swelled in water.
Claim 3
Dependent Claim
36 words
A disinfectant according to claim 1, wherein the carrier of the iodine complex is substituted at available hydroxy sites with ion exchange groups selected from the group consisting of sulphoethyl groups, carboxymethyl groups and diethylaminoethyl groups.
Claim 4
Dependent Claim
57 words
A disinfectant according to claim 1, wherein the carrier of the iodine complex is a polymerisation product obtained by cross-linking of a polyhydroxylic organic material by means of a bi-functional organic cross-linking agent of the type Y-R-Z, wherein Y and Z represent epoxy groups or halogen atoms and R is an aliphatic organic residue lacking dissociating group.
Claim 5
Dependent Claim
31 words
A disinfectant according to claim 3, wherein the bi-functional cross-linking agent is selected from the group consisting of epihalogenohydrins, dihalogenohydrins, 1:2, 3:4-diepoxybutane, diepoxy-propylether and diepoxy-propylethers of ethylene, propylene and polyethylene glycol.
Claim 6
Dependent Claim
31 words
A disinfectant according to claim 1, wherein the polyhydroxylic organic material is selected from the group consisting of monosaccharides, disaccharides, polysaccharides, partial degradation products thereof, synthetic polyhydroxylic polymers, and sugar alcohols.
Claim 7
Dependent Claim
27 words
A disinfectant according to claim 5, wherein the polyhydroxylic organic material is selected from the group consisting of starch, dextran, dextrin, cellulose, polyvinyl alcohol, saccharose, and sorbitol.
Claim 8
Dependent Claim
17 words
A disinfectant according to claim 1, wherein additional iodine is also absorbed or adsorbed to the carrier.
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) | 1980-02-29 | 1980-08-30 | 1981-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-29 | 1984-08-30 | 1985-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-29 | 1988-08-30 | 1989-03-01 | $7700.00 | Window Closed / Lapsed |