US4038318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ionenes
Assignee: ChampionX LLC
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Filing: 1975-06-27
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Granted: 1977-07-26
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Expires: 1995-06-27
Abstract
Abstract Novel ionene polymers are formed by the mannich reaction of an aromatic molecule having an electron withdrawing group with a lower aliphatic aldehyde and a lower aliphatic secondary amine followed by polymerizing the manniched derivative by the use of chain extenders from the group of di-functional condensation monomers consisting of alkyl dihalides, epihalohydrins and 1,4-dihalobutene-2. Additionally, the polymers may be prepared by substituting some or all of the secondary amines above with a primary amine, and quaternizing the resultant polymers formed. The product of this invention have present utility as polymers useful for water clarification and as emulsion breakers for water-in-oil or oil-in-water emulsions.
Inventors
- 👤 Wen Ten Tai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:09
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/10; G03G5/105; G03G5/107; C; C02; C02F; C02F1/00; C02F1/52; C02F1/54; C08; C08G; C08G14/00; C08G14/02; C08G14/04; C08G14/06; C08G14/12
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
193 words
A novel ionene polymer prepared by the steps comprising: A. adding a lower aliphatic secondary amine containing 2-6 carbon atoms to a lower aliphatic aldehyde from the group consisting of formaldehyde and acetaldehyde in a mole ratio of from 2:1 to 1:2 to produce a secondary amine-aldehyde adduct, B. adding the adduct of Step A to a phenol compound selected from the group consisting of phenol, and mono, di and tri alkyl substituted phenols said alkyl groups containing from 1-15 carbon atoms, said phenol compound further characterized as having at least two reactive sites in the ortho and/or para position; in a mole ratio of aldehyde to phenol or substituted phenol of at least 2.0 with agitation at a temperature of from 10°-100° C. for a period sufficient to allow a reaction; and then, C. adding to the product of Step B a chain extender selected from the group consisting of 1,4-dichlorobutene-2 and epihalohydrins in a mole ratio of said phenol or substituted phenol to chain extender of essentially 1 with agitation at a temperature of from 20°-70° C. for a time sufficient to form an ionene polymer, D. recovering the ionene polymer.
Claim 2
Dependent Claim
193 words
A novel ionene polymer prepared by the steps comprising: A. adding a lower aliphatic secondary amine containing 2-6 carbon atoms to a lower aliphatic aldehyde from the group consisting of formaldehyde and acetaldehyde in a mole ratio of from 2:1 to 1:2 to produce a secondary amine-aldehyde adduct, B. adding the adduct of Step A to a phenol compound selected from the group consisting of phenol, and mono, di and tri alkyl substituted phenols said alkyl groups containing from 1-15 carbon atoms, said phenol compound further characterized as having at least two reactive sites in the ortho and/or para position; in a mole ratio of aldehyde to phenol or substituted phenol of at least 2.0 with agitation at a temperature of from 10°-100° C. for a period sufficient to allow a reaction; and then, C. adding to the product of Step B a chain extender selected from the group consisting of 1,4-dichlorobutene-2 and epihalohydrins in a mole ratio of said phenol or substituted phenol to chain extender of essentially 1 with agitation at a temperature of from 20°-70° C. for a time sufficient to form an ionene polymer, D. recovering the ionene polymer.
Claim 3
Dependent Claim
29 words
The ionene polymer of claim 1 wherein in Step C a lower aliphatic diamine is added in a mole ratio of diamine to chain extender of up to 0.5:1.
Claim 4
Dependent Claim
14 words
The ionene polymer of claim 1 wherein the lower aliphatic secondary amine is dimethylamine.
Claim 5
Dependent Claim
13 words
The ionene polymer of claim 1 wherein the lower aliphatic aldehyde is formaldehyde.
Claim 6
Dependent Claim
12 words
The ionene polymer of claim 1 wherein the phenol compound is phenol.
Claim 7
Dependent Claim
12 words
The ionene polymer of claim 1 wherein the chain extender is 1,4-dichlorobutene-2.
Claim 8
Dependent Claim
12 words
The ionene polymer of claim 1 wherein the chain extender is epichlorohydrin.
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) | 1980-07-25 | 1981-01-24 | 1981-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-25 | 1985-01-24 | 1985-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-25 | 1989-01-24 | 1989-07-26 | $7700.00 | Window Closed / Lapsed |