US3673164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-methylene-3-butenyl quaternary ammonium monomers and polymers
Assignee: Dow Chemical Co
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Filing: 1970-09-03
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Granted: 1972-06-27
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Expires: 1990-09-03
Abstract
Abstract Novel 2-methylene-3-butenyl quaternary ammonium monomers (I) and polymers (II): where R1, R2 and R3 are organic groups, are prepared by reaction of 2-halomethyl-1,3-butadiene with a tertiary amine. The quaternary ammonium group increases the water solubility and hydrophilic properties of polymers containing II. Particularly useful are water-soluble quaternary ammonium polymers active as electroconductive additives for paper and other cellulosic products.
Inventors
- 👤 Giffin D Jones
- 👤 Gerald R Geyer
- 👤 Melvin J Hatch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:31
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/10; G03G5/105; G03G5/107; C; C08; C08F; C08F36/00; C08F36/02; C08F36/04; Y; Y10; Y10S; Y10S526/00; Y10S526/923
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
25 words
The polymer of claim 1 where R1 and R2 individually are C1-C4 alkyl or C2-C4 hydroxyalkyl, R3 is C1-C16 alkyl and Y-is a water-soluble anion.
Claim 2
Dependent Claim
15 words
A copolymer of the quaternary ammonium monomer I and an ethylenically unsaturated comonomer polymerizable therewith,
Claim 3
Dependent Claim
6 words
A quaternized homopolymer of 2-chloromethyl-1,3-butadiene or
Claim 4
Dependent Claim
16 words
The polymer of claim 1 where R1, R2 and R3 are methyl, and Y+ is chloride.
Claim 5
Dependent Claim
18 words
The polymer of claim 1 where R1 and R2 are methyl, R3 is hydroxyethyl, and Y+ is chloride.
Claim 6
Dependent Claim
12 words
A quaternized copolymer of 2-chloromethyl-1,3-butadiene and an ethylenically unsaturated comonomer polymerizable therewith.
Claim 7
Dependent Claim
12 words
The polymer of claim 1 obtained by homopolymerization of trimethyl-2-methylene-3-butenyl ammonium chloride.
Claim 8
Dependent Claim
12 words
The polymer of claim 1 obtained by homopolymerization of dimethylhydroxyethyl-2-methylene-3-butenyl ammonium chloride.
Claim 9
Dependent Claim
68 words
The polymer of claim 1 consisting essentially of a copolymer of: A. A 2-methylene-3-butenyl quaternary ammonium compound of Formula I: where R1 and R2 individually are C1-C4 alkyl or C2-C4 hydroxyalkyl, R3 is C1-C16 alkyl, and Y- is a water-soluble anion; and B. An ethylenically unsaturated comonomer selected from the group consisting of (1) vinyl aromatics, (2) acrylic acids, amides, esters, and salts, and (3) alkenes and haloalkenes.
Claim 10
Dependent Claim
10 words
The polymer of claim 1 where the comonomer is 1-chloro-2-methyl-1,3-butadiene.
Claim 11
Dependent Claim
15 words
The polymer of claim 8 where R1 and R2 are methyl, and R3 is hydroxyethyl.
Claim 12
Dependent Claim
20 words
The water-soluble polymer of claim 1 obtained by quaternizing a polymer consisting of at least 20 mole percent polymerized 2-chloromethyl-1,3-butadiene.
Claim 13
Dependent Claim
17 words
The water-soluble polymer of claim 10 wherein the quaternized polymer is a copolymer of 2-chloro-methyl-1,3-butadiene and 1,3-butadiene.
References Cited (Backward Citations)
US3113969A
Cited
US3544532A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |