US3674767A
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Novel polymeric materials containing triazinyl groups
Assignee: National Research Development Corp UK
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Filing: 1968-07-05
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Granted: 1972-07-04
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Expires: 1988-07-05
Abstract
Abstract A polymer that is substituted by pendant triazinyl groups of the formula: WHERE X represents a radical capable of reacting with a biologically active substance, and Y represents a halogen atom, or a nucleophilic group that is an amino group, or an aliphatic or aromatic group, and also by a further substituent group which has a positive charge when the polymer is in contact with a solution having a pH in the normal biological range.
Inventors
- 👤 Malcolm Douglas Lilly
- 👤 Garth Kay
- 👤 Richard John Hugh Wilson
- 👤 Allister Kimball Sharp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:14
CPC Classifications
C; C12; C12N; C12N11/00; C12N11/02; C12N11/06; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/848; Y10S435/849
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
35 words
A polymer according to claim 1, in which the further substituent group is one that has a positive charge when the polymer is in contact with a solution having a pH between 5 and 9.
Claim 2
Dependent Claim
13 words
A polymer according to claim 1, in which the further substituent group is
Claim 3
Dependent Claim
15 words
A polymer according to claim 1, in which the substituent group is a diethylaminoethyl group.
Claim 4
Dependent Claim
30 words
A polymer according to claim 1, in which the group Y is one that carries a positive charge when in contact with solutions having a pH between 2 and 10.
Claim 5
Dependent Claim
30 words
A polymer according to claim 5, in which the group Y is one that carries a positive charge when in contact with solutions having a pH between 5 and 9.
Claim 6
Dependent Claim
19 words
A polymer according to claim 1, in which Y is a nucleophilic group which contains nitrogen, oxygen or sulphur.
Claim 7
Dependent Claim
22 words
A polymer according to claim 1, in which Y is an amino, alkyl or aryl amino, alkyloxy, aryloxy, alkylthio, or arylthio group.
Claim 8
Dependent Claim
23 words
A polymer according to claim 1, in which Y is -O.CH2.COOH, -NH.CH2.COOH, -S.CH2.COOH, -NH.C2H4.SO3H, -O.C4H8.N , (C2H5)3, -NH.C6H4.SO3H, -O.C6H4.COOH, -S.C6H4COOH, -NH.C2H4.OH, or O.C2H4OH.
Claim 9
Dependent Claim
12 words
A polymer according to claim 1, in which Y is -NH.C3H6.N -(C2H4OH)2.
Claim 10
Dependent Claim
15 words
A polymer according to claim 1, in which X is a chlorine or fluorine atom.
Claim 11
Dependent Claim
53 words
A process for the production of a polymer which comprises reacting at a non-acid pH a hydroxy containing polymer which is substituted by a substituted or unsubstituted amino group which has a positive charge when the polymer is in contact with a solution having a pH of 2-10 with a triazine of formula:
Claim 12
Dependent Claim
15 words
A process according to claim 12, in which Z is a chlorine or fluorine atom.
Claim 13
Dependent Claim
51 words
A process according to claim 12 in which the hydroxy containing polymer that is substituted by a group which has a positive charge is prepared by introducing a group which has a positive charge into a cellulose, a cross linked dextran, starch, dextran, wool, polyvinyl alcohol, or partially hydrolyzed polyvinyl acetate.
Claim 14
Dependent Claim
13 words
A process according to claims 12, which is carried out in aqueous solution.
Claim 15
Dependent Claim
15 words
A process according to claims 12 which is carried out in a mixed organic/aqueous solvent.
Claim 16
Dependent Claim
13 words
A process according to claims 12, in which the triazine is cyanuric chloride.
Claim 17
Dependent Claim
18 words
A process according to claim 17, in which unreacted cyanuric chloride is deactivated by adding N-(3 aminopropyl) diethanolamine.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |