US3875111A
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Cationic polymers of tertiary, diamines, bis(chloroacetyl)glycols and tris(n,n-dimethyl amino alkyl)phenol
Assignee: Chugai Pharmaceutical Co Ltd
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Filing: 1972-02-28
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Granted: 1975-04-01
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Expires: 1992-02-28
Abstract
Abstract Novel cationic polymers comprising a repeating unit represented by the formula WHEREIN A, D and X are as defined hereinafter, which are useful for pharmaceutical preparations and useful as a coagulating or flocculating agent for clarifying crude water in the reservoir for water supply, industrial water and sewage or drainage water are disclosed.
Inventors
- 👤 Minoru Tsuda
- 👤 Takamitsu Yuki
- 👤 Akio Yoshida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:06
CPC Classifications
C; C08; C08G; C08G73/00; C08G73/02
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
13 words
A CATIONIC POLYMER MAINLY COMPRISING: A. A REPEATING UNIT REPRESENTED BY THE FORMULA
Claim 2
Dependent Claim
13 words
A CATIONIC POLYMER MAINLY COMPRISING: A. A REPEATING UNIT REPRESENTED BY THE FORMULA
Claim 3
Dependent Claim
48 words
A cationic polymer as set forth in claim 1, wherein A in the main repeating unit is -(CH2)3- and D in the main repeating unit is -(CH2)3-; R1, R2, R3 and R4 are respectively -CH3, and X is Cl; and B in the partially contained repeating unit is
Claim 4
Dependent Claim
47 words
A cationic polymer as set forth in claim 1, wherein A in the main repeating unit is -(CH2)6- and D in the main repeating unit is -(CH2)4-, R1, R2, R3 and R4 are respectively -CH3, X is Cl; and A in the partially contained repeating unit is
Claim 5
Dependent Claim
25 words
A cationic polymer as set forth in claim 1, wherein A in the main repeating unit is -(CH2)6-; D in the main repeating unit is
Claim 6
Dependent Claim
55 words
A cationic polymer as set forth in claim 1, wherein A in the main repeating unit is -(CH2)2-; D in the main repeating unit is -(CH2CH2O)8CH2CH2-; R1, R2, R3 and R4 are respectively -CH3; and X is Cl; and A in the partially contained repeating unit is a group selected from a class consisting of
Claim 7
Dependent Claim
22 words
A cationic polymer as set forth in claim 1, wherein A, R1, R2, R3 and R4 in the main repeating unit form
Claim 8
Dependent Claim
52 words
A cationic polymer as set forth in claim 1, wherein A in the repeating unit is -(CH2CH2O)2CH2CH2-; D in the main repeating unit is -(CH2CH2O)2CH2CH2-; R1, R2, R3 and R4 are respectively CH3; X is Cl; A in the partially contained repeating units is a group selected from a class consisting of
Claim 9
Dependent Claim
17 words
A cationic polymer as set foRth in claim 1, wherein A in the main repeating unit is
Claim 10
Dependent Claim
53 words
A cationic polymer as set forth in claim 1, wherein A in the main repeating unit is -(CH2)6-, D in the main repeating unit is -(Ch2)4-; R1, R2, R3 and R4 are respectively -CH3; X is Cl; A in the partially contained repeating unit is a group selected from a class consisting of
Claim 11
Dependent Claim
54 words
A cationic polymer as set forth in claim 1, wherein A in the main repeating unit is -CH2)6-; D in the main repeating unit is -CH2CH CHCH2-; R1, R2, R3 and R4 are respectively -CH3; X is Cl; A in the partially contained repeating unit is a group selected from a class consisting of
Claim 12
Dependent Claim
45 words
A cationic polymer as set forth in claim 1, wherein A in the main repeating unit is -(CH2)3-; D in the main repeating unit is -(CH2)2-, R1, R2, R3 and R4 are respectively -CH3; X is Cl; D in the partially contained repeating unit is
Claim 13
Dependent Claim
45 words
A cationic polymer as set forth in claim 1, wherein A in the main repeating unit is -(CH2)6-; R1, R2, R3 and R4 are respectively -CH3; X is Cl; D in the main repeating unit is -(CH2)10-; D in the partially contained repeating unit is
Claim 14
Dependent Claim
17 words
A cationic polymer as set forth in claim 1, wherein A in the main repeating unit is
Claim 15
Dependent Claim
22 words
A cationic polymer as set forth in claim 1, wherein A, R1, R2, R3 and R4 in the main repeating unit form
Claim 16
Dependent Claim
67 words
A cationic polymer as set forth in claim 1, wherein A in the main repeatng unit is -(CH2CH2O)2CH2CH2-; D in the main repeating unit is -(CH2CH2O)2CH2CH2-; R1, R2, R3 and R4 are respectively -CH3; X is Cl; B in the partially contained repeating unit is said chloroacetylated glucose residue, and A in the partially contained repeating unit is the same as that in the main repeating unit.
Claim 17
Dependent Claim
45 words
A cationic pOlymer as set forth in claim 1, wherein A in the main repeating unit is -(CH2)6-; D in the main repeating unit is -(CH2)4-; R1, R2, R3 and R4 are respectively -CH3; X is Cl; D in the partially contained repeating unit is
Claim 18
Dependent Claim
53 words
A cationic polymer as set forth in claim 1, wherein A in the main repeating unit is -(CH2)6-, D in the main repeating unit is -(CH2)4-, R1, R2, R3 and R4 are respectively -CH3, X is Cl, D in the partially contained repeating unit is a group selected from a class consisting of
Claim 19
Dependent Claim
17 words
A process for preparing a cationic polymer mainly comprising a. a repeating unit represented by the formula
Claim 20
Dependent Claim
17 words
A process for preparing a cationic polymer mainly comprising a. a repeating unit represented by the formula
Claim 21
Dependent Claim
49 words
A process as set forth in claim 18, wherein the starting materials are used in a proportion that the ratio of total number of the functional groups of compound (II) and compound (IV) and the total number of the functional groups of compound (III) and compound (V) is 1:1.
Claim 22
Dependent Claim
40 words
A process as set forth in claim 18, wherein the reaction is conducted in an organic solvent of methanol, ethanol, acetone, ethyl acetate, tetrahydrofuran, methyl ethyl ketone, acetonitrile, benzene, cyclohexane, toluene, chloroform, cyclohexanone, tetrahydrothiophene-1,1-dioxide (sulfolane), N,N-dimethylformamide or a mixture thereof.
Claim 23
Dependent Claim
23 words
A process as set forth in claim 18, wherein the reaction is conducted at a temperature between 0* and a refluxing temperature inclusively.
Claim 24
Dependent Claim
21 words
A process as set forth in claim 21, wherein the reaction is conducted at a temperature between 10*C and 50*C inclusively.
Claim 25
Dependent Claim
23 words
A clarifying agent for turbid water containing at least one of the compounds mainly comprising a. a repeating units represented by the formula
Claim 26
Dependent Claim
23 words
A clarifying agent for turbid water containing at least one of the compounds mainly comprising a. a repeating units represented by the formula
Claim 27
Dependent Claim
23 words
A cationic polymer as set forth in claim 1 wherein A is hexamethylene, B is tetramethylene and R1 through R4 are each methyl.
Claim 28
Dependent Claim
43 words
A cationic polymer as set forth in claim 1 comprising the polymerization product of a monomer providing the repeating unit represented by the formula (I) wherein A is hexamethylene, B is tetramethylene and R1 through R4 are methyl, together with tris (chloracetyl) trimethylolpropane.
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) | 1978-03-31 | 1978-09-30 | 1979-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-31 | 1982-09-30 | 1983-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-31 | 1986-09-30 | 1987-04-01 | $7700.00 | Window Closed / Lapsed |