US4186191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel complexes of polyoxazolines or polyoxazines and halogens, interhalogens or pseudohalogens and process for preparing same
Assignee: Dow Chemical Co
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Filing: 1978-12-11
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Granted: 1980-01-29
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Expires: 1998-12-11
Abstract
Abstract Novel solid complexes of 2-oxazoline and 2-oxazine polymers and halogens, interhalogens or pseudo-halogens are prepared by contacting a poly-2-oxazoline or poly-2-oxazine whose backbone comprises a plurality of ring-opened units of an oxazoline or oxazine monomer of the general formula ##STR1## wherein R and R 1 -R 4 are each independently hydrogen, alkyl, aralkyl, phenyl or inertly-substituted phenyl and n is zero or one with a halogen, interhalogen or pseudo-halogen. The complexes are soluble in a variety of conventional solvents (e.g., water, methylene chloride, acetonitrile, methanol, tetrahydrofuran and isopropanol).
Inventors
- 👤 Thomas A. Chamberlin
- 👤 Sonia W. Bangs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:13
CPC Classifications
C; C08; C08L; C08L79/00; C08L79/04; C08G; C08G73/00; C08G73/02; C08G73/0233
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
42 words
A process for sanitizing or disinfecting a substrate contaminated with microorganisms comprising contacting said substrate with an aqueous solution of a solid complex comprising (a) a poly-2-oxazoline or poly-2-oxazine, and (b) a halogen, selected from the group consisting of bromine and iodine.
Claim 2
Dependent Claim
42 words
A process for sanitizing or disinfecting a substrate contaminated with microorganisms comprising contacting said substrate with an aqueous solution of a solid complex comprising (a) a poly-2-oxazoline or poly-2-oxazine, and (b) a halogen, selected from the group consisting of bromine and iodine.
Claim 3
Dependent Claim
19 words
The process defined by claim 1 wherein said solution is a solution of a complex comprising poly(2-ethyl-2-oxazoline) and iodine.
Claim 4
Dependent Claim
40 words
The process defined by claim 2 wherein said solution contains at least 40 ppm of a solid complex comprising poly(2-ethyl-2-oxazoline) and iodine having a molar ratio of 2-ethyl-2-oxazoline monomer to iodine in a range of from 2:1 to about 10:1.
Claim 5
Dependent Claim
33 words
A process for sanitizing or disinfecting a substrate contaminated with microorganisms comprising contacting said substrate with an aqueous solution of a solid complex comprising (a) a poly-2-oxazoline or poly-2-oxazine, and (b) an interhalogen.
Claim 6
Dependent Claim
33 words
A process for sanitizing or disinfecting a substrate contaminated with microorganisms comprising contacting said substrate with an aqueous solution of a solid complex comprising (a) a poly-2-oxazoline or poly-2-oxazine, and (b) an interhalogen.
Claim 7
Dependent Claim
66 words
The process defined by claim 4 wherein said solution is a solution of a solid complex wherein (a) is poly(2-ethyl-2-oxazoline) and (b) is an interhalogen corresponding to the formula XX n ', wherein X and X' are Cl, Br or I, n is an odd numbered integer greater than or equal to one and X' is the lighter halogen atom when n is greater than one.
Claim 8
Dependent Claim
21 words
The process defined by claim 5 wherein said solution is a solution of a solid complex comprising poly(2-ethyl-2-oxazoline and bromine chloride.
References Cited (Backward Citations)
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US3607798A
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US3821125A
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US3833521A
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US3911107A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-01-28 | 1983-07-30 | 1984-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-28 | 1987-07-30 | 1988-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-28 | 1991-07-30 | 1992-01-29 | $7700.00 | Window Closed / Lapsed |