US4093567A
Expired / Lapsed
US
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Aminated crosslinked copolymers of bis(chloromethyl) styrene which exhibit improved anion exchange properties
Assignee: Rohm and Haas Co
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Filing: 1977-01-17
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Granted: 1978-06-06
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Expires: 1997-01-17
Abstract
Abstract This invention relates to certain novel anion exchange resins and the method of making them. It relates more particularly to aminated cross-linked polymers of bis(chloromethyl(styrene which exhibit improved anion exchange properties, and to the method of preparing the same.
Inventors
- 👤 Marvin J. Hurwitz
- 👤 Noyes L. Avery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:57
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/28; C08J9/286; B; B01; B01J; B01J41/00; B01J41/08; B01J41/12; B01J41/14; C08F; C08F212/00; C08F212/02; C08F212/04; C08F212/14; C08F212/16; C08F212/18; C08F8/00; C08F8/30; C08F8/32; C08F2810/00; C08F2810/20; C08J2325/00; C08J2325/18
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
51 words
A crosslinked copolymer resulting from copolymerizing a monomer mixture of (a) one or more monoethylenically unsaturated monomers, including bis-(chloromethyl)styrene which comprises at least about 5 weight percent of the mixture; and (b) a polyethylenically unsaturated monomer which is present at between about 0.5 and about 50 weight percent of the mixture.
Claim 2
Dependent Claim
51 words
A crosslinked copolymer resulting from copolymerizing a monomer mixture of (a) one or more monoethylenically unsaturated monomers, including bis-(chloromethyl)styrene which comprises at least about 5 weight percent of the mixture; and (b) a polyethylenically unsaturated monomer which is present at between about 0.5 and about 50 weight percent of the mixture.
Claim 3
Dependent Claim
55 words
The copolymer of claim 1 wherein the polyethylenically unsaturated monomer is selected from the group consisting of divinylpyridine, divinylnaphthalenes, divinylbenzene, trivinylbenzene, alkyl divinylbenzenes having 1-4 alkyl groups of 1-2 carbon atoms substituted in the benzene nucleus and alkyl trivinylbenzenes having 1-3 alkyl groups of 1-2 carbon atoms substituted in the benzene nucleus, and mixtures thereof.
Claim 4
Dependent Claim
26 words
The copolymer of claim 1 wherein the polyethylenically unsaturated monomer is present at between about 0.5 and about 30 percent by weight of the novel polymer.
Claim 5
Dependent Claim
15 words
The copolymer of claim 1 wherein the polymer is in the form of gellular beads.
Claim 6
Dependent Claim
15 words
The copolymer of claim 1 wherein the polymer is in the form of macroreticular beads.
Claim 7
Dependent Claim
56 words
The copolymer of claim 1 wherein the mixture comprises (a) about 5% to about 99.4% by weight of bis(chloromethyl)styrene and from about 0.1% to about 94.5% by weight of at least one additional monoethylenically unsaturated monomer selected from vinylbenzyl chloride and styrene; and (b) about 0.5% to about 30% by weight of the polyethylenically unsaturated monomer.
Claim 8
Dependent Claim
14 words
The coploymer of claim 6 wherein the additional monoethylenically unsaturated monomer is vinylbenzyl chloride.
Claim 9
Dependent Claim
58 words
An amine functionalized anion exchange resin produced from a copolymer resulting from copolymerizing a monomer mixture of (a) one or more monoethylenically unsaturated monomers, including bis-(chloromethyl)styrene which comprises at least about 5 weight percent of the mixture; and (b) a polyethylenically unsaturated monomer which is present at between about 0.5 and about 50 weight percent of the mixture.
Claim 10
Dependent Claim
58 words
An amine functionalized anion exchange resin produced from a copolymer resulting from copolymerizing a monomer mixture of (a) one or more monoethylenically unsaturated monomers, including bis-(chloromethyl)styrene which comprises at least about 5 weight percent of the mixture; and (b) a polyethylenically unsaturated monomer which is present at between about 0.5 and about 50 weight percent of the mixture.
Claim 11
Dependent Claim
55 words
The resin of claim 8 wherein the polyethylenically unsaturated monomer is selected from the group consisting of divinylpyridine, divinylnaphthalenes, divinylbenzene, trivinylbenzene, alkyl divinylbenzenes having 1-4 alkyl groups of 1-2 carbon atoms substituted in the benzene nucleus, and alkyl trivinylbenzenes having 1-3 alkyl groups of 1-2 carbon atoms substituted in the benzene nucleus, and mixtures thereof.
Claim 12
Dependent Claim
24 words
The resin of claim 8 wherein the polyethylenically unsaturated monomer is present at between about 0.5 and about 30 weight percent of the polymer.
Claim 13
Dependent Claim
36 words
The resin of claim 8 wherein the amine functionality is introduced to the polymer by an alkyl amine having 2-3 alkyl groups which may be different from one another, and which contain 1-5 carbon atoms each.
Claim 14
Dependent Claim
15 words
The resin of claim 8 wherein the resin is in the form of gellular beads.
Claim 15
Dependent Claim
15 words
The resin of claim 8 wherein the resin is in the form of macroreticular beads.
Claim 16
Dependent Claim
57 words
The resin of claim 8 wherein the mixture comprises (a) from about 5% to about 99.4% by weight of bis-(chloromethyl)styrene and from about 0.1% to about 94.5% by weight of at least one additional monoethylenically unsaturated monomer selected from vinylbenzyl chloride and styrene; and (b) about 0.5% to about 30% by weight of the polyethylenically unsaturated monomer.
Claim 17
Dependent Claim
14 words
The resin of claim 14 wherein the additional monoethylenically unsaturated monomer is vinylbenzyl chloride.
Claim 18
Dependent Claim
66 words
A process for preparing a polymer of crosslinked bis(chloromethyl)styrene capable of being converted into an anion exchange resin, the process comprising copolymerizing by a suspension polymerization reaction a monomer mixture containing from about 5% to about 99.4% by weight of bis(chloromethyl)styrene, from about 0.1% to about 94.5% by weight of vinylbenzyl chloride and from about 0.5% to about 30% by weight of a polyethylenically unsaturated crosslinker.
Claim 19
Dependent Claim
66 words
A process for preparing a polymer of crosslinked bis(chloromethyl)styrene capable of being converted into an anion exchange resin, the process comprising copolymerizing by a suspension polymerization reaction a monomer mixture containing from about 5% to about 99.4% by weight of bis(chloromethyl)styrene, from about 0.1% to about 94.5% by weight of vinylbenzyl chloride and from about 0.5% to about 30% by weight of a polyethylenically unsaturated crosslinker.
Claim 20
Dependent Claim
81 words
A process for preparing an amine functionalized anion exchange resin comprising copolymerizing by a suspension polymerization reaction a monomer mixture containing from about 5% to about 99.4% by weight of bis(chloromethyl)styrene, from about 0.1% to about 94.5% by weight of vinylbenzyl chloride, and from about 0.5% to about 30% by weight of a polyethylenically unsaturated crosslinker, and aminating the copolymer with an alkylamine having 2-3 alkyl groups which may be different from one another and which contain 1-5 carbon atoms each.
Claim 21
Dependent Claim
81 words
A process for preparing an amine functionalized anion exchange resin comprising copolymerizing by a suspension polymerization reaction a monomer mixture containing from about 5% to about 99.4% by weight of bis(chloromethyl)styrene, from about 0.1% to about 94.5% by weight of vinylbenzyl chloride, and from about 0.5% to about 30% by weight of a polyethylenically unsaturated crosslinker, and aminating the copolymer with an alkylamine having 2-3 alkyl groups which may be different from one another and which contain 1-5 carbon atoms each.
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) | 1981-06-05 | 1981-12-05 | 1982-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-05 | 1985-12-05 | 1986-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-05 | 1989-12-05 | 1990-06-06 | $7700.00 | Window Closed / Lapsed |